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TLE2037IDR
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Texas Instruments TLE2027AIP, TLE2027AID, TLE2027ACP, TLE2027ACD, TLE2037AMD Datasheet

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TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Outstanding Combination of dc Precision and AC Performance:
Unity-Gain Bandwidth...15 MHz Typ V
n
3.3 nV/√Hz at f = 10 Hz Typ,. . . .
2.5 nV/√Hz at f = 1 kHz Typ
V
IO
25 µV Max. . . .
A
VD
45 V/µV Typ With RL = 2 kΩ,. . . 19 V/µV Typ With RL = 600 Ω
D
Available in Standard-Pinout Small-Outline Package
D
Output Features Saturation Recovery Circuitry
D
Macromodels and Statistical information
description
The TLE20x7 and TLE20x7A contain innovative circuit design expertise and high-quality process control techniques to produce a level of ac performance and dc precision previously unavail­able in single operational amplifiers. Manufac­tured using Texas Instruments state-of-the-art Excalibur process, these devices allow upgrades to systems that use lower-precision devices.
In the area of dc precision, the TLE20x7 and TLE20x7A offer maximum offset voltages of 100 µV and 25 µV, respectively, common-mode rejection ratio of 131 dB (typ), supply voltage rejection ratio of 144 dB (typ), and dc gain of 45 V/µV (typ).
AVAILABLE OPTIONS
PACKAGED DEVICES
T
A
VIOmax AT
25
°C
SMALL
OUTLINE
†
(D)
CHIP
CARRIER
(FK)
CERAMIC
DIP
(JG)
PLASTIC
DIP
(P)
CHIP
FORM
‡
(Y)
25 µV
TLE2027ACD TLE2037ACD
— —
— —
TLE2027ACP TLE2037ACP
TLE2027Y TLE2037Y
0°C to 70°C
100 µV
TLE2027CD TLE2037CD
— —
— —
TLE2027CP TLE2037CP
TLE2027Y TLE2037Y
25 µV
TLE2027AID TLE2037AID
— —
— —
TLE2027AIP TLE2037AIP
—
–
40°C to 105°C
100 µV
TLE2027ID TLE2037ID
— —
— —
TLE2027IP TLE2037IP
—
25 µV
TLE2027AMD TLE2037AMD
TLE2027AMFK TLE2037AMFK
TLE2027AMJG TLE2037AMJG
TLE2027AMP TLE2037AMP
—
–
55 C to 125 C
100 µV
TLE2027MD TLE2037MD
TLE2027MFK TLE2037MFK
TLE2027MJG TLE2037MJG
TLE2027MP TLE2037MP
—
†
The D packages are available taped and reeled. Add R suffix to device type (e.g., TLE2027ACDR).
‡
Chip forms are tested at 25°C only.
Copyright 1997, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
1 2 3 4
8 7 6 5
OFFSET N1
IN – IN +
V
CC –
OFFSET N2 V
CC +
OUT NC
D, JG, OR P PACKAGE
(TOP VIEW)
3 2 1 20 19
910111213
4 5 6 7 8
18 17 16 15 14
NC V
CC+
NC OUT NC
NC
IN–
NC
IN+
NC
FK PACKAGE
(TOP VIEW)
NC
OFFSET N1
NCNCNC
NC
NC
NC
OFFSET N2
CC –
V
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
description (continued)
The ac performance of the TLE2027 and TLE2037 is highlighted by a typical unity-gain bandwidth specification of 15 MHz, 55° of phase margin, and noise voltage specifications of 3.3 nV/√Hz
and 2.5 nV/√Hz at frequencies of 10 Hz and 1 kHz respectively . The TLE2037 and TLE2037A have been decompensated for faster slew rate (–7.5 V/µs, typical) and wider bandwidth (50 MHz). To ensure stability, the TLE2037 and TLE2037A should be operated with a closed-loop gain of 5 or greater.
Both the TLE20x7 and TLE20x7A are available in a wide variety of packages, including the industry-standard 8-pin small-outline version for high-density system applications. The C-suffix devices are characterized for operation from 0°C to 70°C. The I-suffix devices are characterized for operation from – 40°C to 105°C. The M-suffix devices are characterized for operation over the full military temperature range of –55°C to 125°C.
symbol
OUT
OFFSET N2
IN –
IN +
OFFSET N1
–
+
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLE202xY chip information
This chip, when properly assembled, displays characteristics similar to the TLE202xC. Thermal compression or ultrasonic bonding may be used on the doped-aluminum bonding pads. The chip may be mounted with conductive epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
CHIP THICKNESS: 15 MILS TYPICAL BONDING PADS: 4 × 4 MILS MINIMUM TJmax = 150°C TOLERANCES ARE ±10%. ALL DIMENSIONS ARE IN MILS. PIN (4) IS INTERNALLY CONNECTED
TO BACKSIDE OF CHIP.
(1) (2) (3)
(4)
(5)
(6)
(7)(8)
90
73
(1)
(2)
(3)
(4)
(6)
(7)
(8)
+
–
OUT
IN+
IN–
V
CC+
V
CC–
OFFSET N1
OFFSET N2
(1)
(3)
(2)
(8)
(7)
(4)
(6)
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
SLOS192 – FEBRUARY 1997
Template Release Date: 7–11–94
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
4
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
•
equivalent schematic
IN –
IN +
R24 R26
Q57
Q56
Q55
Q60
OUT
Q62
Q59
Q61
Q58
R25
Q48
Q54
Q53
Q52
Q49
Q50
R23
R22
R21
R20
Q46
Q42
R19
Q47
Q44
Q43
Q40
Q45
Q41
Q39
Q38
Q37
Q35
R15
Q36
R16 R17
C4
C3
R13
Q34
Q33
Q32
R9
Q27
Q30
R8 R11
Q25 Q28
C2
Q31
Q26 Q29
R18R14R12R10R7
Q19
C1
Q24Q23
Q20
R6
R3
Q21
Q22
Q16
Q15
Q18
R5
R4
Q13
Q14
Q17
R2
R1
OFFSET N2 OFFSET N1
Q12
Q10
Q9
Q11
Q8
Q7
Q5
Q6
Q4
Q1
Q3
Q2
Q51
CC
V
CC+
V
–
ACTUAL DEVICE COMPONENT COUNT
COMPONENT TLE2027 TLE2037
Transistors 61 61 Resistors 26 26 epiFET 1 1 Capacitors 4 4
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, V
CC+
(see Note 1) 19 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply voltage, V
CC–
– 19 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, V
ID
(see Note 2) ±1.2 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
(any input) V
CC±
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input current, I
I
(each Input) ±1 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output current, I
O
± 50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total current into V
CC+
50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Total current out of V
CC–
50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duration of short-circuit current at (or below) 25°C (see Note 3) unlimited. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous total power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
: C suffix 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I suffix – 40°C to 105°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
M suffix – 55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, T
stg
–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Case temperature for 60 seconds, T
C
: FK package 260°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds: D or P package 260°C. . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 60 seconds: JG package 300°C. . . . . . . . . . . . . . . . . . .
†
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES: 1. All voltage values, except differential voltages, are with respect to the midpoint between V
CC +
and V
CC –
.
2. Differential voltages are at IN+ with respect to IN–. Excessive current flows if a differential input voltage in excess of approximately
±1.2 V is applied between the inputs unless some limiting resistance is used.
3. The output may be shorted to either supply. Temperature and/or supply voltages must be limited to ensure that the maximum dissipation rating is not exceeded.
DISSIPATION RATING TABLE
PACKAGE
TA ≤ 25°C
POWER RATING
DERATING FACTOR
ABOVE TA = 25°C
TA = 70°C
POWER RATING
TA = 105°C
POWER RATING
TA = 125°C
POWER RATING
D 725 mW 5.8 mW/°C 464 mW 261 mW 145 mW FK 1375 mW 11.0 mW/°C 880 mW 495 mW 275 mW JG 1050 mW 8.4 mW/°C 672 mW 378 mW 210 mW
P 1000 mW 8.0 mW/°C 640 mW 360 mW 200 mW
recommended operating conditions
C SUFFIX I SUFFIX M SUFFIX
MIN MAX MIN MAX MIN MAX
UNIT
Supply voltage, V
CC±
±4 ± 19 ±4 ±19 ±4 ±19 V
p
TA = 25°C –11 11 –11 11 –11 11
Common-mode input voltage, V
IC
TA = Full range
‡
–10.5 10.5 –10.4 10.4 –10.2 10.2
V
Operating free-air temperature, T
A
0 70 –40 105 –55 125 °C
‡
Full range is 0°C to 70°C for C-suffix devices, –40°C to 105°C for I-suffix devices, and –55°C to 125°C for M-suffix devices.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLE20x7C electrical characteristics at specified free-air temperature, V
CC
±
= ±15 V (unless
otherwise noted)
TLE20x7C TLE20x7AC
PARAMETER
TEST CONDITIONS
T
A
†
MIN TYP MAX MIN TYP MAX
UNIT
p
25°C 20 100 10 25
VIOInput offset voltage
Full range 145 70
µ
V
α
VIO
T emperature coef ficient of input offset voltage
Full range 0.4 1 0.2 1 µV/°C
Input offset voltage long-term drift (see Note 4)
VIC = 0, RS = 50 Ω
25°C 0.006 1 0.006 1 µV/mo
p
25°C 6 90 6 90
IIOInput offset current
Full range 150 150
nA
p
25°C 15 90 15 90
IIBInput bias current
Full range 150 150
nA
Common-mode input
25°C
–11
to
11
–13
to
13
–11
to
11
–13
to
13
V
ICR
voltage range
R
S
= 50
Ω
Full range
–10.5
to
10.5
–10.5
to
10.5
V
25°C 10.5 12.9 10.5 12.9
Maximum positive peak
R
L
=
600 Ω
Full range 10 10
V
OM +
output voltage swing
25°C 12
13.2
12 13.2
V R
L
=
2 kΩ
Full range 11 11
25°C –10.5 –13 –10.5 –13
Maximum negative peak
R
L
=
600 Ω
Full range –10 –10
V
OM –
g
output voltage swing
25°C –12 –13.5 –12 –13.5
V
R
L
= 2
kΩ
Full range –11 –11 VO = ±11 V, RL = 2 kΩ 25°C 5 45 10 45 VO = ±10 V, RL = 2 kΩ Full range 2 4
Large-signal differential
25°C 3.5 38 8 38
A
VD
gg
voltage amplification
V
O
=
±10 V, R
L
= 1
kΩ
Full range 1 2.5
V/µV
V
= ±10 V ,
25°C 2 19 5 19
O
,
RL = 600 Ω
Full range 0.5 2
C
i
Input capacitance 25°C 8 8 pF
z
o
Open-loop output impedance
IO = 0 25°C 50 50
Ω
Common-mode rejection V
= V
min,
25°C 100 131 117 131
CMRR
j
ratio
IC ICR
,
RS = 50 Ω
Full range 98 114
dB
Supply-voltage rejection
V
CC±
= ±4 V to ±18 V,
RS = 50 Ω
25°C 94 144 110 144
k
SVR
ygj
ratio (∆V
CC
±
/∆V
IO
)
V
CC±
= ±4 V to ±18 V,
RS = 50 Ω
Full range 92 106
dB
pp
25°C 3.8 5.3 3.8 5.3
ICCSupply current
V
O
= 0,
No load
Full range 5.6 5.6
mA
†
Full range is 0°C to 70°C.
NOTE 4: Typical values are based on the input offset voltage shift observed through 168 hours of operating life test at TA = 150°C extrapolated
to TA = 25°C using the Arrhenius equation and assuming an activation energy of 0.96 eV .
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLE20x7C operating characteristics at specified free-air temperature, V
CC ±
= ±15 V, TA = 25°C
(unless otherwise specified)
TLE20x7C TLE20x7AC
PARAMETER
TEST CONDITIONS
MIN TYP MAX MIN TYP MAX
UNIT
RL = 2 kΩ,
p
TLE2027 1.7 2.8 1.7 2.8
C
L
=
100 pF
,
See Figure 1
TLE2037 6 7.5 6 7.5
SR Slew rate at unity gain
RL = 2 kΩ, C
= 100 pF,
TLE2027 1.2 1.2
V/µs
L
,
TA = 0°C to 70°C, See Figure 1
TLE2037 5 5
Equivalent input noise volt-
RS = 20 Ω, f = 10 Hz 3.3 8 3.3 4.5
V
n
q
age (see Figure 2)
RS = 20 Ω, f = 1 kHz
2.5 4.5 2.5 3.8
n
V/√H
z
V
N(PP)
Peak-to-peak equivalent in­put noise voltage
f = 0.1 Hz to 10 Hz 50 250 50 130 nV
Equivalent input noise cur-
f = 10 Hz 1.5 4 1.5 4
I
n
q
rent
f = 1 kHz
0.4 0.6 0.4 0.6
p
A/√H
z
VO = +10 V , AVD = 1, See Note 5
TLE2027 <0.002% <0.002%
THD
Total harmonic distortion
VO = +10 V , AVD = 5, See Note 5
TLE2037 <0.002% <0.002%
Unity-gain bandwidth R
= 2 kΩ,
TLE2027 7 13 9 13
B
1
yg
(see Figure 3)
L
,
CL = 100 pF
TLE2037 35 50 35 50
MH
z
Maximum output-swing
TLE2027 30 30
B
OM
g
bandwidth
R
L
= 2
kΩ
TLE2037 80 80
kH
z
Phase margin at unity gain RL = 2 kΩ,
TLE2027 55° 55°
φ
m
gyg
(see Figure 3)
L
CL = 100 pF
TLE2037 50° 50°
NOTE 5: Measured distortion of the source used in the analysis was 0.002%.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLE20x7I electrical characteristics at specified free-air temperature, V
CC±
= ±15 V (unless
otherwise noted)
TLE20x7I TLE20x7AI
PARAMETER
TEST CONDITIONS
T
A
†
MIN TYP MAX MIN TYP MAX
UNIT
p
25°C 20 100 10 25
VIOInput offset voltage
Full range 180 105
µ
V
α
VIO
T emperature coef ficient of input offset voltage
Full range 0.4 1 0.2 1 µV/°C
Input offset voltage long-term drift (see Note 4)
VIC = 0, RS = 50 Ω
25°C 0.006 1 0.006 1 µV/mo
p
25°C 6 90 6 90
IIOInput offset current
Full range 150 150
nA
p
25°C 15 90 15 90
IIBInput bias current
Full range 150 150
nA
Common-mode input
25°C
–11
to
11
–13
to
13
–11
to
11
–13
to
13
V
ICR
voltage range
R
S
= 50
Ω
Full range
–10.4
to
10.4
–10.4
to
10.4
V
25°C 10.5 12.9 10.5 12.9
Maximum positive peak
R
L
=
600 Ω
Full range 10 10
V
OM +
output voltage swing
25°C 12
13.2
12 13.2
V R
L
=
2 kΩ
Full range 11 11
25°C –10.5 –13 –10.5 –13
Maximum negative peak
R
L
=
600 Ω
Full range –10 –10
V
OM –
g
output voltage swing
25°C –12 –13.5 –12 –13.5
V
R
L
= 2
kΩ
Full range –11 –11 VO = ±11 V, RL = 2 kΩ 25°C 5 45 10 45 VO = ±10 V, RL = 2 kΩ Full range 2 3.5
Large-signal differential
25°C 3.5 38 8 38
A
VD
gg
voltage amplification
V
O
=
±10 V, R
L
= 1
kΩ
Full range 1 2.2
V/µV
25°C 2 19 5 19
V
O
=
±10 V, R
L
=
600 Ω
Full range 0.5 1.1
C
i
Input capacitance 25°C 8 8 pF
z
o
Open-loop output impedance
IO = 0 25°C 50 50
Ω
Common-mode rejection V
= V
min,
25°C 100 131 117 131
CMRR
j
ratio
IC ICR
,
RS = 50 Ω
Full range 96 113
dB
Supply-voltage rejection
V
CC±
= ±4 V to ±18 V,
RS = 50 Ω
25°C 94 144 110 144
k
SVR
ygj
ratio (∆V
CC
±
/∆VIO)
V
CC±
= ±4 V to ±18 V,
RS = 50 Ω
Full range 90 105
dB
pp
25°C 3.8 5.3 3.8 5.3
ICCSupply current
V
O
= 0,
No load
Full range 5.6 5.6
mA
†
Full range is – 40°C to 105°C.
NOTE 4: Typical values are based on the input offset voltage shift observed through 168 hours of operating life test at TA = 150°C extrapolated
to TA = 25°C using the Arrhenius equation and assuming an activation energy of 0.96 eV .
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLE20x7I operating characteristics at specified free-air temperature, V
CC ±
= ±15 V, TA = 25°C
(unless otherwise specified)
TLE20x7I TLE20x7AI
PARAMETER
TEST CONDITIONS
MIN TYP MAX MIN TYP MAX
UNIT
RL = 2 kΩ,
p
TLE2027 1.7 2.8 1.7 2.8
C
L
=
100 pF
,
See Figure 1
TLE2037 6 7.5 6 7.5
SR Slew rate at unity gain
RL = 2 kΩ, C
= 100 pF,
TLE2027 1.1 1.1
V/µs
L
,
TA = –40°C to 85°C, See Figure 1
TLE2037 4.7 4.7
Equivalent input noise
RS = 20 Ω, f = 10 Hz 3.3 8 3.3 4.5
V
n
q
voltage (see Figure 2)
RS = 20 Ω, f = 1 kHz
2.5 4.5 2.5 3.8
n
V/√H
z
V
N(PP)
Peak-to-peak equivalent input noise voltage
f = 0.1 Hz to 10 Hz 50 250 50 130 nV
Equivalent input noise
f = 10 Hz 1.5 4 1.5 4
I
n
q
current
f = 1 kHz
0.4 0.6 0.4 0.6
p
A/√H
z
VO = +10 V , AVD = 1, See Note 5
TLE2027 < 0.002% < 0.002%
THD
Total harmonic distortion
VO = +10 V , AVD = 5, See Note 5
TLE2037 < 0.002% < 0.002%
Unity-gain bandwidth R
= 2 kΩ,
TLE2027 7 13 9 13
B
1
yg
(see Figure 3)
L
,
CL = 100 pF
TLE2037 35 50 35 50
MH
z
Maximum output-swing
TLE2027 30 30
B
OM
g
bandwidth
R
L
= 2
kΩ
TLE2037 80 80
kH
z
Phase margin at unity R
= 2 kΩ,
TLE2027 55° 55°
φ
m
gy
gain (see Figure 3)
L
,
CL = 100 pF
TLE2037 50° 50°
NOTE 5: Measured distortion of the source used in the analysis was 0.002%.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLE20x7M electrical characteristics at specified free-air temperature, V
CC
±
= ±15 V (unless
otherwise noted)
TLE20x7M TLE20x7AM
PARAMETER
TEST CONDITIONS
T
A
†
MIN TYP MAX MIN TYP MAX
UNIT
p
25°C 20 100 10 25
VIOInput offset voltage
Full range 200 105
µ
V
α
VIO
T emperature coef ficient of input offset voltage
Full range 0.4 1* 0.2 1* µV/°C
Input offset voltage long-term drift (see Note 4)
VIC = 0, RS = 50 Ω
25°C 0.006 1* 0.006 1* µV/mo
p
25°C 6 90 6 90
IIOInput offset current
Full range 150 150
nA
p
25°C 15 90 15 90
IIBInput bias current
Full range 150 150
nA
Common-mode input
25°C
–11
to
11
–13
to
13
–11
to
11
–13
to
13
V
ICR
voltage range
R
S
= 50
Ω
Full range
–10.3
to
10.3
–10.4
to
10.4
V
25°C 10.5 12.9 10.5 12.9
Maximum positive peak
R
L
=
600 Ω
Full range 10 10
V
OM +
output voltage swing
25°C 12 13.2 12 13.2
V R
L
=
2 kΩ
Full range 11 11
25°C –10.5 –13 –10.5 –13
Maximum negative peak
R
L
=
600 Ω
Full range –10 –10
V
OM –
g
output voltage swing
25°C –12 –13.5 –12 –13.5
V
R
L
= 2
kΩ
Full range –11 –11 VO = ±11 V, RL = 2 kΩ 25°C 5 45 10 45 VO = ±10 V, RL = 2 kΩ Full range 2.5 3.5
A
VD
Large-signal differential
p
25°C 3.5 38 8 38
V/µV
VD
voltage am lification
V
O
=
±10 V, R
L
= 1
kΩ
Full range 1.8 2.2
µ
V
O
=
±10 V, R
L
=
600 Ω
25°C219519
Ci
Input capacitance 25°C 8 8 pF
z
o
Open-loop output impedance
IO = 0 25°C 50 50
Ω
Common-mode rejection V
= V
min,
25°C 100 131 117 131
CMRR
j
ratio
IC ICR
,
RS = 50 Ω
Full range 96 113
dB
Supply-voltage rejection
V
CC±
= ±4 V to ±18 V,
RS = 50 Ω
25°C 94 144 110 144
k
SVR
ygj
ratio (∆V
CC
±
/∆V
IO
)
V
CC±
= ±4 V to ±18 V,
RS = 50 Ω
Full range 90 105
dB
pp
25°C 3.8 5.3 3.8 5.3
ICCSupply current
V
O
= 0, No
load
Full range 5.6 5.6
mA
* On products compliant to MIL-PRF-38535, this parameter is not production tested. †
Full range is – 55°C to 125°C.
NOTE 4: Typical values are based on the input offset voltage shift observed through 168 hours of operating life test at TA = 150°C extrapolated
to TA = 25°C using the Arrhenius equation and assuming an activation energy of 0.96 eV .
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLE20x7M operating characteristics at specified free-air temperature, V
CC ±
= ±15 V, TA = 25°C
(unless otherwise specified)
TLE20x7M TLE20x7AM
PARAMETER
TEST CONDITIONS
MIN TYP MAX MIN TYP MAX
UNIT
RL = 2 kΩ,
p
TLE2027 1.7 2.8 1.7 2.8
C
L
=
100 pF
,
See Figure 1
TLE2037 6* 7.5 6* 7.5
SR Slew rate at unity gain
RL = 2 kΩ, C
= 100 pF,
TLE2027 1 1
V/µs
L
,
TA = –55°C to 125°C,
See Figure 1
TLE2037 4.4* 4.4*
Equivalent input noise
RS = 20 Ω, f = 10 Hz 3.3 8* 3.3 4.5*
V
n
q
voltage (see Figure 2)
RS = 20 Ω, f = 1 kHz
2.5 4.5* 2.5 3.8*
n
V/√H
z
V
N(PP)
Peak-to-peak equivalent input noise voltage
f = 0.1 Hz to 10 Hz 50 250* 50 130* nV
Equivalent input noise
f = 10 Hz 1.5 4* 1.5 4*
I
n
q
current
f = 1 kHz
0.4 0.6* 0.4 0.6*
p
A/√H
z
VO = +10 V , AVD = 1, See Note 5
TLE2027 <0.002% < 0.002%
THD
Total harmonic distortion
VO = +10 V , AVD = 5, See Note 5
TLE2037 <0.002% < 0.002%
Unity-gain bandwidth R
= 2 kΩ,
TLE2027 7* 13 9* 13
B
1
yg
(see Figure 3)
L
,
CL = 100 pF
TLE2037 35 50 35 50
MH
z
Maximum output-swing
TLE2027 30 30
B
OM
g
bandwidth
R
L
= 2
kΩ
TLE2037 80 80
kH
z
Phase margin at unity RL = 2 kΩ,
TLE2027 55° 55°
φ
m
gy
gain (see Figure 3)
L
CL = 100 pF
TLE2037 50° 50°
* On products compliant to MIL-PRF-38535, this parameter is not production tested. NOTE 5: Measured distortion of the source used in the analysis was 0.002%.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLE20x7Y electrical characteristics, V
CC
±
= ±15 V, TA = 25°C (unless otherwise noted)
TLE20x7Y
PARAMETER
TEST CONDITIONS
MIN TYP MAX
UNIT
V
IO
Input offset voltage 20 µV Input offset voltage
long-term drift (see Note 4)
V
= 0, R
= 50 Ω
0.006 µV/mo
I
IO
Input offset current
IC
,
S
6 nA
I
IB
Input bias current 15 nA
V
ICR
Common-mode input voltage range RS = 50 Ω
–13
to
13
V
p
p
p
R
L
= 600 Ω 12.9
V
OM +
Maximum positive peak output voltage swing
RL = 2 kΩ
13.2
V
p
p
RL = 600 Ω –13
V
OM –
Maximum negative peak output voltage swing
RL = 2 kΩ –13.5
V
VO = ±11 V, RL = 2 kΩ 45
p
VO = ±10 V, RL = 1 kΩ 38
AVDLarge-signal differential voltage am lification
VO = ±10 V , RL = 600 Ω
19
V/µV
C
i
Input capacitance 8 pF
z
o
Open-loop output impedance IO = 0 50
Ω
CMRR Common-mode rejection ratio
VIC = V
ICR
min,
RS = 50 Ω
131 dB
k
SVR
Supply-voltage rejection ratio (∆V
CC
±
/∆V
IO
)
V
CC±
= ±4 V to ±18 V,
RS = 50 Ω
144 dB
I
CC
Supply current VO = 0, No load 3.8 mA
NOTE 4: Typical values are based on the input offset voltage shift observed through 168 hours of operating life test at TA = 150°C extrapolated
to TA = 25°C using the Arrhenius equation and assuming an activation energy of 0.96 eV .
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLE20x7Y operating characteristics at specified free-air temperature, V
CC ±
= ±15 V
TLE20x7Y
PARAMETER
TEST CONDITIONS
MIN TYP MAX
UNIT
R
= 2 kΩ,C
= 100 pF,
TLE2027 2.8
SR
Slew rate at unity gain
L
,
L
,
See Figure 1
TLE2037 7.5
V/µs
p
RS = 20 Ω, f = 10 Hz 3.3
VnEquivalent input noise voltage (see Figure 2)
RS = 20 Ω, f = 1 kHz 2.5
n
V/√H
z
V
N(PP)
Peak-to-peak equivalent input noise voltage f = 0.1 Hz to 10 Hz 50 nV
p
f = 10 Hz 1.5
InEquivalent input noise current
f = 1 kHz 0.4
p
A/√H
z
VO = +10 V , AVD = 1, See Note 5
TLE2027 <0.002%
THD
Total harmonic distortion
VO = +10 V , AVD = 5, See Note 5
TLE2037 <0.002%
p
TLE2027 13
B1Unity-gain bandwidth (see Figure 3)
R
L
=
2 kΩ,C
L
=
100 pF
TLE2037 50
MH
z
p
TLE2027 30
BOMMaximum output-swing bandwidth
R
L
=
2 kΩ
TLE2037 80
kH
z
p
TLE2027 55°
φ
m
Phase margin at unity gain (see Figure 3)
R
L
= 2 kΩ,
C
L
=
100 F
TLE2037 50°
NOTE 5: Measured distortion of the source used in the analysis was 0.002%.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
V
O
20 Ω
20 Ω
2 kΩ
– 15 V
15 V
+
–
RL = 2 kΩ
CL =
100 pF
(see Note A)
V
O
– 15 V
V
I
+
–
15 V
R
f
NOTE A: CL includes fixture capacitance.
R
I
Figure 1. Slew-Rate Test Circuit Figure 2. Noise-Voltage Test Circuit
V
O
2 kΩ
CL =
100 pF
(see Note A)
10 kΩ
100 Ω
V
I
–15 V
15 V
+
–
V
O
2 kΩ
– 15 V
15 V
–
+
V
I
CL =
100 pF
(see Note A)
NOTES: A. CL includes fixture capacitance.NOTE A: CL includes fixture capacitance.
B. For the TLE2037 and TLE2037A,
AVD must be ≥ 5.
R
f
R
I
Figure 3. Unity-Gain Bandwidth and Figure 4. Small-Signal Pulse-
Phase-Margin Test Circuit (TLE2027 Only) Response Test Circuit
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–15
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
typical values
Typical values presented in this data sheet represent the median (50% point) of device parametric performance.
initial estimates of parameter distributions
In the ongoing program of improving data sheets and supplying more information to our customers, Texas Instruments has added an estimate of not only the typical values but also the spread around these values. These are in the form of distribution bars that show the 95% (upper) points and the 5% (lower) points from the characterization of the initial wafer lots of this new device type (see Figure 5). The distribution bars are shown at the points where data was actually collected. The 95% and 5% points are used instead of ± 3 sigma since some of the distributions are not true Gaussian distributions.
The number of units tested and the number of different wafer lots used are on all of the graphs where distribution bars are shown. As noted in Figure 5, there were a total of 835 units from two wafer lots. In this case, there is a good estimate for the within-lot variability and a possibly poor estimate of the lot-to-lot variability . This is always the case on newly released products since there can only be data available from a few wafer lots.
The distribution bars are not intended to replace the minimum and maximum limits in the electrical tables. Each distribution bar represents 90% of the total units tested at a specific temperature. While 10% of the units tested fell outside any given distribution bar, this should not be interpreted to mean that the same individual devices fell outside every distribution bar.
– Supply Current – mA
CC
I
4.5
5
4
3.5
3
2.5
TA – Free-Air Temperature –
°C
1501251007550250–25–50–75
(5% of the devices fell below this point.)
5% point on the distribution bar
and lower points on the distribution bar.
90% of the devices were within the upper
(5% of the devices fell above this point.)
95% point on the distribution bar
SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
V
CC
±
= ±15 V
VO = 0 No Load Sample Size = 835 Units From 2 Water Lots
Figure 5. Sample Graph With Distribution Bars
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–16
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
V
IO
Input offset voltage Distribution 6, 7
∆V
IO
Input offset voltage change vs Time after power on 8, 9
I
IO
Input offset current vs Free-air temperature 10
p
vs Free-air temperature 11
IIBInput bias current
vs Common-mode input voltage 12
I
I
Input current vs Differential input voltage 13
V
O(PP)
Maximum peak-to-peak output voltage vs Frequency 14, 15 Maximum (positive/negative) peak output vs Load resistance 16, 17
V
OM
(g)
voltage vs Free-air temperature
,
18, 19
vs Supply voltage 20
p
vsvsSu ly voltage
Load resistance
20
21
AVDLarge-signal differential voltage amplification
vs Frequency 22 – 25 vs Free-air temperature 26
z
o
Output impedance vs Frequency 27 CMRR Common-mode rejection ratio vs Frequency 28 k
SVR
Supply-voltage rejection ratio vs Frequency 29
vs Supply voltage 30, 31
I
OS
Short-circut output current
vs
yg
Elapsed time
,
32, 33
OS
vs Free-air temperature 34, 35
pp
vs Supply voltage 36
ICCSupply current
vs
yg
Free-air temperature 37
p
p
Small signal 38, 40
Voltage-follower pulse response
g
Large signal
,
39, 41
V
n
Equivalent input noise voltage vs Frequency 42
Noise voltage (referred to input) Over 10-second interval 43
vs Supply voltage 44
B1Unity-gain bandwidth
vs
yg
Load capacitance 45
p
vs Supply voltage 46
Gain bandwidth product
vs
yg
Load capacitance 47
SR Slew rate vs Free-air temperature 48, 49
vs Supply voltage 50, 51
φ
m
Phase margin
vs
yg
Load capacitance
,
52, 53
φ
m
g
vs Free-air temperature 54, 55
Phase shift vs Frequency 22 – 25
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–17
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 6
Percentage of Amplifiers – %
VIO – Input Offset Voltage – µV
TA = 25°C
V
CC
±
= +15 V
16
14
12
10
8
6
4
2
0 120906030–30–60–90– 120
0
D Package
1568 Amplifiers Tested From 2 Wafer Lots
DISTRIBUTION
INPUT OFFSET VOLTAGE
Figure 7
INPUT OFFSET VOLTAGE CHANGE
vs
TIME AFTER POWER ON
0
0
t – Time After Power On – s
10 20 30 40 50 60
2
4
6
8
10
12
AVIO – Change in Input Offset Voltage –
∆V
IO
µV
50 Amplifiers Tested From 2 Wafer Lots V
CC
±
= ±15 V
TA = 25°C D Package
Figure 8
t – Time After Power On – s
INPUT OFFSET VOLTAGE CHANGE
vs
TIME AFTER POWER ON
6
5
4
3
2
1
0
0 20 40 60 80 100 120 140 160 180
AVIO – Change in Input Offset Voltage –
∆V
IO
µV
50 Amplifiers Tested From 2 Wafer Lots V
CC
±
= ±15 V
TA = 25°C P Package
Figure 9
0
IIO – Input Offset Current – nA
5
10
15
20
25
30
1501251007550250–25–50
TA – Free-Air Temperature – °C
–75
INPUT OFFSET CURRENT
†
vs
FREE-AIR TEMPERATURE
IO
I
V
CC
±
= ±15 V
VIC = 0 Sample Size = 833 Units From 2 Wafer Lots
†
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–18
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 10
INPUT BIAS CURRENT
†
vs
FREE-AIR TEMPERATURE
–20
–75
IIB – Input Bias Current – nA
TA – Free-Air Temperature – °C
–10
0
10
20
30
40
50
60
–50 –25 0 25 50 75 100 125 150
V
CC
±
= ± 15 V
VIC = 0 Sample Size = 836 Units From 2 Wafer Lots
IB
I
Figure 11
INPUT BIAS CURRENT
vs
COMMON-MODE INPUT VOLTAGE
0
–12
VIC – Common-Mode Input Voltage – V
–8 –4 0 4 8 12
5
10
15
20
25
30
35
40
TA = 25°C
V
CC
±
= ± 15 V
IIB – Input Bias Current – nA
IB
I
Figure 12
II – Input Current – mA
–1
– 1.8
VID – Differential Input Voltage – V
– 0.8
– 0.6
– 0.4
– 0.2
0
0.2
0.4
0.6
0.8
1
– 1.2 – 0.6 0 0.6 1.2 1.8
INPUT CURRENT
vs
DIFFERENTIAL INPUT VOLTAGE
I
I
V
CC
±
= ± 15 V
VIC = 0 TA = 25°C
Figure 13
V
O(PP)
– Maximum Peak-to-Peak Output Voltage – V
TA = – 55°C
TA = 125
°C
10 M1 M100 k
30
25
20
15
10
5
f – Frequency – Hz
10 k
0
V
CC±
= ±15 V
RL = 2 kΩ
TLE2027
MAXIMUM PEAK-TO-PEAK
OUTPUT VOLTAGE
†
vs
FREQUENCY
†
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–19
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 14
VO(PP) – Maximum Peak-to-Peak Output Voltage – V
0
10 k
f – Frequency – Hz
5
10
15
20
25
30
100 k 1 M 100 M
TA = – 55°C
10 M
V
O(PP)
RL = 2 kΩ
V
CC
±
= ± 15 V
TA = 125°C
TLE2037
MAXIMUM PEAK-TO-PEAK
OUTPUT VOLTAGE
†
vs
FREQUENCY
Figure 15
MAXIMUM POSITIVE PEAK
OUTPUT VOLTAGE
vs
LOAD RESISTANCE
0
100
VOM+ – Maximum Positive Peak Output Voltage – V
RL – Load Resistance – Ω
2
4
6
8
10
12
14
1 k 10 k
V
OM +
V
CC
±
= ± 15 V
TA = 25°C
Figure 16
0
100
VOM– – Maximum Negative Peak Output Voltage – V
RL – Load Resistance – Ω
–2
–4
–6
–8
–10
–12
–14
1 k 10 k
MAXIMUM NEGATIVE PEAK
OUTPUT VOLTAGE
vs
LOAD RESISTANCE
ÁÁ
ÁÁ
V
OM –
V
CC
±
= ± 15 V
TA = 25°C
Figure 17
MAXIMUM POSITIVE PEAK
OUTPUT VOLTAGE
†
vs
FREE-AIR TEMPERATURE
12.9 –75
TA – Free-Air Temperature – °C
13
13.1
13.2
13.3
13.4
13.5
– 50 – 25 0 25 50 75 100 125 150
VOM+ – Maximum Positive Peak Output Voltage – V
V
OM +
V
CC
±
= ± 15 V
RL = 2 kΩ
From 2 Wafer Lots
Sample Size = 832 Units
†
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–20
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 18
MAXIMUM NEGATIVE PEAK
OUTPUT VOLTAGE
†
vs
FREE-AIR TEMPERATURE
–14
–75
TA – Free-Air Temperature – °C
– 13.8
– 13.6
– 13.4
– 13.2
–13
– 50 – 25 0 25 50 75 100 125 150
RL = 2 kΩ
V
CC
±
= ± 15 V
VOM– – Maximum Negative Peak Output Voltage – V
V
OM –
Sample Size = 831 Units From 2 Wafer Lots
Figure 19
LARGE-SIGNAL DIFFERENTIAL
VOLTAGE AMPLIFICATION
vs
SUPPLY VOLTAGE
0
0
V
CC±
– Supply Voltage – V
50
4
8 12 16 20
10
20
30
40
RL = 2 kΩ
RL = 1 kΩ
RL = 600 Ω
TA = 25°C
AVD – Large-Signal differential
A
VD
Vµ V/
Voltage Amplification –
Figure 20
10
0
50
100 200 400 1 k 4 k 10 k
2 k
40
30
20
RL – Load Resistance – Ω
TA = 25°C
V
CC
±
= ± 15 V
AVD – Large-Signal differential
A
VD
Vµ
V/
Voltage Amplification –
LARGE-SIGNAL DIFFERENTIAL
VOLTAGE AMPLIFICATION
vs
LOAD RESISTANCE
†
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–21
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
A
VD
Phase Shift
V
CC±
= ± 15 V
RL = 2 kΩ CL = 100 pF TA = 25
°C
Phase Shift
275°
75°
250°
225°
200°
175°
150°
125°
100°140
120
100
80
60
40
20
100 k100
160
100 M
f – Frequency – Hz
0
0.1
AVD – Large-Signal Differential
A
VD
Voltage Amplification – dB
Figure 21
TLE2027
LARGE-SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION AND PHASE SHIFT
vs
FREQUENCY
0.1
0
f – Frequency – MHz
100 M
160
100 100 k
20
40
60
80
100
120
140
100°
125°
150°
175°
200°
225°
250°
75°
275°
Phase Shift
A
VD
Phase Shift
AVD – Large-Signal Differential
Á
Á
A
VD
Voltage Amplification – dB
TA = 25°C
CL = 100 pF
V
CC
±
= ± 15 V
RL = 2 kΩ
Figure 22
TLE2037
LARGE-SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION AND PHASE SHIFT
vs
FREQUENCY
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–22
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
300°
100°
275°
250°
225°
200°
175°
150°
125°
Phase Shift
A
VD
Phase Shift
704020
3
0
–3
–6
–9
–12
–15
6
100
f – Frequency – MHz
–18
10
V
CC±
= ± 15 V
RL = 2 kΩ CL = 100 pF TA = 25
°C
AVD – Large-Signal Differential
A
VD
Voltage Amplification – dB
Figure 23
TLE2027
LARGE-SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION AND PHASE SHIFT
vs
FREQUENCY
– 5
–10
15
1 2 4 10 40 100
20
10
5
0
30
25
20
f – Frequency – MHz
Phase Shift
275
300
175
200
225
250
100
125
150
°
°
°
°
°
°
°
°
°
Phase Shift
A
VD
AVD – Large-Signal Differential
A
VD
Voltage Amplification – dB
TA = 25°C
CL = 100 pF
RL = 2 kΩ
V
CC
±
= ± 15 V
Figure 24
TLE2037
LARGE-SIGNAL DIFFERENTIAL VOLTAGE
AMPLIFICATION AND PHASE SHIFT
vs
FREQUENCY
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–23
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 25
–75
30
TA – Free-Air Temperature – °C
150
60
–50 –25 0 25 50 75 100 125
40
50
V
CC ±
= ± 15 V
RL = 2 kΩ
RL = 1 kΩ
LARGE-SIGNAL DIFFERENTIAL
VOLTAGE AMPLIFICATION
†
vs
FREE-AIR TEMPERATURE
AVD – Large-Signal differential
A
VD
Vµ
V/
Voltage Amplification –
OUTPUT IMPEDANCE
vs
FREQUENCY
Figure 26
10
–100
zo – Output Impedance –
f – Frequency – Hz
100 M
100
100 1 k 10 k 100 k 1 M 10 M
–10
1
10
AVD = 100
See Note A
AVD = 10
z
o
Ω
V
CC ±
= ± 15 V
TA = 25°C
NOTE A: For this curve, the TLE2027 is AVD = 1 and the
TLE2037 is AVD = 5.
10
0
CMRR – Common-Mode Rejection Ratio – dB
f – Frequency – Hz
100 M
140
100 1 k 10 k 100 k 1 M 10 M
20
40
60
80
100
120
COMMON-MODE REJECTION RATIO
vs
FREQUENCY
TA = 25°C
V
CC ±
= ± 15 V
Figure 27
10
0
– Supply-Voltage Rejection Ratio – dB
f – Frequency – Hz
100 M
140
100 1 k 10 k 100 k 1 M 10 M
20
40
60
80
100
120
k
SVR–
k
SVR+
SUPPLY-VOLTAGE REJECTION RATIO
vs
FREQUENCY
TA = 25°C
V
CC ±
= ± 15 V
SVR
K
Figure 28
†
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–24
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
0
–30
IOS – Short-Circuit Output Current – mA
–42
2 4 6 8 10 12 14 16 18 20
–32
–34
–36
–38
–40
SHORT-CIRCUIT OUTPUT CURRENT
vs
SUPPLY VOLTAGE
V
CC±
– Supply Voltage – V
БББББ
БББББ
БББББ
VID = 100 mV VO = 0 TA = 25°C
P Package
OS
I
Figure 29
SHORT-CIRCUIT OUTPUT CURRENT
vs
SUPPLY VOLTAGE
0
30
44
2 4 6 8 10 12 14 16 18 20
32
34
36
38
40
42
VID = – 100 mV VO = 0 TA = 25°C
P Package
IOS – Short-Circuit Output Current – mA
OS
I
V
CC±
– Supply Voltage – V
Figure 30
0
–35
t – Elasped Time – s
180
–45
30 60 90 120 150
–37
–39
–41
–43
SHORT-CIRCUIT OUTPUT CURRENT
vs
ELAPSED TIME
P Package
TA = 25°C
VO = 0
VID = 100 mV
V
CC ±
= ± 15 V
IOS – Short-Circuit Output Current – mA
OS
I
Figure 31
SHORT-CIRCUIT OUTPUT CURRENT
vs
ELAPSED TIME
0
34
t – Elasped Time – s
180
44
30 60 90 120 150
36
38
40
42
IOS – Short-Circuit Output Current – mA
OS
I
P Package
TA = 25°C
VO = 0
VID = 100 mV
V
CC ±
= ± 15 V
Figure 32
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–25
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
–75
–24
TA – Free-Air Temperature – °C
150
–48
–50 –25 0 25 50 75 100 125
–28
–32
–36
–40
–44
SHORT-CIRCUIT OUTPUT CURRENT
†
vs
FREE-AIR TEMPERATURE
IOS – Short-Circuit Output Current – mA
OS
I
V
CC ±
= ± 15 V
VID = 100 mV VO = 0 P Package
Figure 33
26
TA – Free-Air Temperature – °C
46
30
34
38
42
1251007550250–25– 50 150–75
SHORT-CIRCUIT OUTPUT CURRENT
†
vs
FREE-AIR TEMPERATURE
IOS – Short-Circuit Output Current – mA
OS
I
V
CC ±
= ± 15 V
VID = –100 mV VO = 0
P Package
Figure 34
0
0
ICC – Supply Current – mA
V
CC
±
– Supply Voltage – V
6
2 4 6 8 10 12 14 16 18 20
1
2
3
4
5
SUPPLY CURRENT
†
vs
SUPPLY VOLTAGE
ÁÁ
CC
I
VO = 0 No Load
TA = 125°C
TA = 25°C
TA = – 55°C
Figure 35
–75
2.5 TA – Free-Air Temperature – °C
150
5
–50 –25 0255075 100 125
3
3.5
4
4.5
SUPPLY CURRENT
†
vs
FREE-AIR TEMPERATURE
ICC – Supply Current – mA
CC
I
V
CC ±
= ± 15 V
VO = 0 No Load
Sample Size = 836 Units From 2 Wafer Lots
Figure 36
†
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–26
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 37
V
O
– Output Voltage – mV
50
0
–50
8006004002000
100
1000
t – Time – ns
– 100
V
CC±
= ±15 V
RL = 2 kΩ CL = 100 pF TA = 25
°C
See Figure 4
TLE2027
VOLTAGE-FOLLOWER
SMALL-SIGNAL
PULSE RESPONSE
Figure 38
t – Time – µs
250 5 10 15 20
10
5
0
– 5
– 10
15
– 15
V
CC±
= ±15 V
RL = 2 kΩ CL = 100 pF TA = 25
°C
See Figure 1
V
O
– Output Voltage – V
TLE2027
VOLTAGE-FOLLOWER
LARGE-SIGNAL
PULSE RESPONSE
TA = 25°C See Figure 4
V
CC ±
= ± 15 V
AVD = 5 RL = 2 kΩ
CL = 100 pF
50
0
–50
300
2001000
100
400
t – Time – ns
– 100
VO – Output Voltage – mV
V
O
Figure 39
TLE2037
VOLTAGE-FOLLOWER
SMALL-SIGNAL
PULSE RESPONSE
–15
15
–10
–5
0
5
10
TA = 25°C
CL = 100 pF
RL = 2 kΩ
AVD = 5
V
CC ±
= ± 15 V
8642010
t – Time – µs
VO – Output Voltage – V
V
O
See Figure 1
Figure 40
TLE2037
VOLTAGE-FOLLOWER
LARGE-SIGNAL
PULSE RESPONSE
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–27
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
1
0
Vn – Equivalent Input Noise Voltage – nVHz
f – Frequency – Hz
100 k
10
10 100 1 k 10 k
2
4
6
8
EQUIVALENT INPUT NOISE VOLTAGE
vs
FREQUENCY
БББББББ
БББББББ
БББББББ
БББББББ
V
CC ±
= ± 15 V
RS = 20 Ω TA = 25°C See Figure 2 Sample Size = 100 Units From 2 Wafer Lots
V
n
nV/ Hz
Figure 41
NOISE VOLTAGE
(REFERRED TO INPUT)
OVER A 10-SECOND INTERVAL
0
–50
Noise Voltage – nV
t – Time – s
10
50
2468
–40
–30
–20
–10
0
10
20
30
40
V
CC ±
= ± 15 V
f = 0.1 to 10 Hz TA = 25°C
Figure 42
Figure 43
20
B
1
– Unity-Gain Bandwidth – MHz
18
16
14
12
201816141210864222
| V
CC
±
| – Supply Voltage – V
10
0
RL = 2 kΩ CL = 100 pF TA = 25
°C
See Figure 3
TLE2027
UNITY-GAIN BANDWIDTH
vs
SUPPLY VOLTAGE
Figure 44
0
48
V
CC±
– Supply Voltage – V
52
2 46810 12 14 16 18 20
49
50
51
RL = 2 kΩ CL = 100 pF TA = 25°C
f = 100 kHz
Gain-Bandwidth Product – MHz
TLE2037
GAIN-BANDWIDTH PRODUCT
vs
SUPPLY VOLTAGE
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–28
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 45
V
CC±
= ±15 V
RL = 2 kΩ TA = 25
°C
See Figure 3
1000
12
8
4
16
10000
CL – Load Capacitance – pF
0
100
B
1
– Unity-Gain Bandwidth – MHz
TLE2027
UNITY-GAIN BANDWIDTH
vs
LOAD CAPACITANCE
100
48
Gain-Bandwidth Product – MHz
CL – Load Capacitance – pF
10000
52
49
50
51
1000
TA = 25°C
RL = 2 kΩ
V
CC±
= ±15 V
Figure 46
TLE2037
GAIN-BANDWIDTH PRODUCT
vs
LOAD CAPACITANCE
Figure 47
V
CC±
= ±15 V
AVD = 1 RL = 2 kΩ CL = 100 pF See Figure 1
2.8
2.6
2.4
2.2
1251007550250–25–50
3
150
TA – Free-Air Temperature – °C
SR – Slew Rate – V/ s
2
–75
µ
TLE2027
SLEW RATE
†
vs
FREE-AIR TEMPERATURE
Figure 48
–75
5
TA – Free-Air Temperature – °C
150
10
–50 –25 0 25 50 75 100 125
6
7
8
9
sµ
AVD = 5 RL = 2 kΩ CL = 100 pF
See Figure 1
SR – Slew Rate – V/
V
CC ±
= ± 15 V
TLE2037
SLEW RATE
†
vs
FREE-AIR TEMPERATURE
†
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–29
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 49
56°
54°
52°
50°
48°
46°
44°
2018161412108642
58°
22
| V
CC
±
| – Supply Voltage – V
– Phase Margin
42°
0
RL = 2 kΩ CL = 100 pF TA = 25
°C
See Figure 3
m
φ
TLE2027
PHASE MARGIN
vs
SUPPLY VOLTAGE
Figure 50
0
m
V
CC±
– Supply Voltage – V
2 46810 12 14 16 18 20
38°
40°
42°
44°
46°
48°
50°
52°
φ
TA = 25°C
CL = 100 pF
AVD = 5 RL = 2 kΩ
– Phase Margin
TLE2037
PHASE MARGIN
vs
SUPPLY VOLTAGE
Figure 51
1000
40°
20°
60°
CL – Load Capacitance – pF
0°
100
– Phase Margin
m
φ
TLE2027
PHASE MARGIN
vs
LOAD CAPACITANCE
V
CC±
= ±15 V
RL = 2 kΩ TA = 25
°C
See Figure 3
10°
30°
50°
Figure 52
100
0°
CL – Load Capacitance – pF
10000
1000
10°
20°
30°
40°
50°
60°
V
CC ±
= ± 15 V
RL = 2 kΩ TA = 25
°C
m
φ – Phase Margin
TLE2037
PHASE MARGIN
vs
LOAD CAPACITANCE
†
Data at high and low temperatures are applicable only within the rated operating free-air temperature ranges of the various devices.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–30
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 53
– Phase Margin
m
φ
60°
55°
50°
45°
40°
1251007550250–25–50
65°
150
TA – Free-Air Temperature –
°C
35°
–75
V
CC±
= ±15 V
RL = 2 kΩ TA = 25
°C
See Figure 3
TLE2027
PHASE MARGIN
†
vs
FREE-AIR TEMPERATURE
Figure 54
–75
45°
TA – Free-Air Temperature – °C
150
–50 –25 0 25 50 75 100 125
49°
51°
53°
55°
47°
CL = 100 pF
RL = 2 kΩ
AVD = 5
V
CC ±
= ± 15 V
m
φ – Phase Margin
TLE2037
PHASE MARGIN
†
vs
FREE-AIR TEMPERATURE
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–31
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
input offset voltage nulling
The TLE2027 and TLE2037 series offers external null pins that can be used to further reduce the input offset voltage. The circuits of Figure 55 can be connected as shown if the feature is desired. If external nulling is not needed, the null pins may be left disconnected.
4.7 kΩ
1 kΩ
V
CC +
OUT
IN –
IN +
V
CC –
+
–
4.7 kΩ
–
+
V
CC –
OUT
V
CC +
10 kΩ
IN –
IN +
(a) STANDARD ADJUSTMENT (b) ADJUSTMENT WITH IMPROVED SENSITIVITY
Figure 55. Input Offset Voltage Nulling Circuits
voltage-follower applications
The TLE2027 circuitry includes input-protection diodes to limit the voltage across the input transistors; however, no provision is made in the circuit to limit the current if these diodes are forward biased. This condition can occur when the device is operated in the voltage-follower configuration and driven with a fast, large-signal pulse. It is recommended that a feedback resistor be used to limit the current to a maximum of 1 mA to prevent degradation of the device. Also, this feedback resistor forms a pole with the input capacitance of the device. For feedback resistor values greater than 10 kΩ, this pole degrades the amplifier phase margin. This problem can be alleviated by adding a capacitor (20 pF to 50 pF) in parallel with the feedback resistor (see Figure 56).
R
F
IF
≤ 1 mA
–
+
V
I
V
O
V
CC–
V
CC
CF = 20 to 50 pF
Figure 56. Voltage Follower
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–32
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
macromodel information
Macromodel information provided was derived using Microsim
Parts
, the model generation software used
with Microsim
PSpice
. The Boyle macromodel (see Note 6) and subcircuit in Figure 57, Figure 58, and Figure 59 were generated using the TLE20x7 typical electrical and operating characteristics at 25°C. Using this information, output simulations of the following key parameters can be generated to a tolerance of 20% (in most cases):
• Maximum positive output voltage swing
• Maximum negative output voltage swing
• Slew rate
• Quiescent power dissipation
• Input bias current
• Open-loop voltage amplification
• Gain-bandwidth product
• Common-mode rejection ratio
• Phase margin
• DC output resistance
• AC output resistance
• Short-circuit output current limit
NOTE 6: G. R. Boyle, B. M. Cohn, D. O. Pederson, and J. E. Solomon, “Macromodeling of Integrated Circuit Operational Amplifiers”, IEEE Journal
of Solid-State Circuits, SC-9, 353 (1974).
8
ro2
7
12
V
CC +
IN + IN –
V
CC –
1
2
dp
rp
11
rc1
c1
rc2
Q2Q1
13
14
3
re1 re2
4
lee
ve
–+
54
10
ree
cee
53
vc
+
–
r2
6
gcm
ga
de
dc
vb
9
+
–
egnd
99
+
–
fb
C2
vlim
+
– ro1
5
OUT
90
hlim
+ dip
–
91
92
dln
vip
vin
+
–
+
–
Figure 57. Boyle Macromodel
PSpice
and
Parts
are trademarks of MicroSim Corporation.
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y
EXCALIBUR LOW-NOISE HIGH-SPEED
PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–33
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
macromodel information (continued)
.subckt TLE2027 1 2 3 4 5 *
c1 11 12 4.003E-12 c2 6 7 20.00E-12 dc 5 53 dz de 54 5 dz dlp 90 91 dz dln 92 90 dx dp 4 3 dz egnd 99 0 poly(2) (3,0)
(4,0) 0 5 .5
fb 7 99 poly(5) vb vc ve vlp vln 0 954.8E6 –1E9 1E9 1E9 –1E9
ga 6 0 11 12
2.062E-3
gcm 0 6 10 99
531.3E-12
iee 10 4 dc 56.01E-6
hlim 90 0 vlim 1K
q1 11 2 13 qx
Figure 58. TLE2027 Macromodel Subcircuit
q2 12 1 14 qx r2 6 9 100.0E3 rc1 3 11 530.5 rc2 3 12 530.5 re1 13 10 –393.2 re2 14 10 –393.2 ree 10 99 3.571E6 ro1 8 5 25 ro2 7 99 25 rp 3 4 8.013E3 vb 9 0 dc 0 vc 3 53 dc 2.400 ve 54 4 dc 2.100 vlim 7 8 dc 0 vlp 91 0 dc 40
vln 0 92 dc 40 .modeldx D(Is=800.0E-18) .modelqx NPN(Is=800.0E-18 Bf=7.000E3) .ends
.subckt TLE2037 1 2 3 4 5 *
c1 11 12 4.003E–12 c2 6 7 7.500E–12 dc 5 53 dz de 54 5 dz dlp 90 91 dz dln 92 90 dx dp 4 3 dz egnd 99 0 poly(2) (3,0) (4,0) 0 .5 .5 fb 7 99 poly(5) vb vc ve vip vln 0 923.4E6 A800E6 800E6 800E6 A800E6 ga 6 0 11 12 2.121E–3 gcm 0 6 10 99 597.7E–12 iee 10 4 dc 56.26E–6 hlim 90 0 vlim 1K q1 11 2 13 qx
Figure 59. TLE2037 Macromodel Subcircuit
q2 12 1 14 qz r2 6 9 100.0E3 rc1 3 11 471.5 rc2 3 12 471.5 re1 13 10 A448 re2 14 10 A448 ree 10 99 3.555E6 ro1 8 5 25 ro2 7 99 25 rp 3 4 8.013E3 vb 9 0 dc 0 vc 3 53 dc 2.400 ve 54 4 dc 2.100 vlim 7 8 dc 0 vlp 91 0 dc 40
vln 0 92 dc 40 .model dxD(Is=800.0E–18) .model qxNPN(Is=800.0E–18
Bf=7.031E3) .ends
TLE2027, TLE2037, TLE2027A, TLE2037A, TLE2027Y, TLE2037Y EXCALIBUR LOW-NOISE HIGH-SPEED PRECISION OPERATIONAL AMPLIFIERS
SLOS192 – FEBRUARY 1997
6–34
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
IMPORTANT NOTICE
T exas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement, and limitation of liability.
TI warrants performance of its semiconductor products to the specifications applicable at the time of sale in accordance with TI’s standard warranty. Testing and other quality control techniques are utilized to the extent TI deems necessary to support this warranty. Specific testing of all parameters of each device is not necessarily performed, except those mandated by government requirements.
CERT AIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MA Y INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE (“CRITICAL APPLICATIONS”). TI SEMICONDUCTOR PRODUCTS ARE NOT DESIGNED, AUTHORIZED, OR WARRANTED TO BE SUITABLE FOR USE IN LIFE-SUPPORT DEVICES OR SYSTEMS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF TI PRODUCTS IN SUCH APPLICA TIONS IS UNDERST OOD TO BE FULLY AT THE CUSTOMER’S RISK.
In order to minimize risks associated with the customer’s applications, adequate design and operating safeguards must be provided by the customer to minimize inherent or procedural hazards.
TI assumes no liability for applications assistance or customer product design. TI does not warrant or represent that any license, either express or implied, is granted under any patent right, copyright, mask work right, or other intellectual property right of TI covering or relating to any combination, machine, or process in which such semiconductor products or services might be or are used. TI’s publication of information regarding any third party’s products or services does not constitute TI’s approval, warranty or endorsement thereof.
Copyright 1998, Texas Instruments Incorporated
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