Texas Instruments TLC25L2CPWR, TLC25L2CPW, TLC25L2CPSR, TLC25L2CPS, TLC25L2CP Datasheet
...
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
A-Suffix Versions Offer 5-mV V
IO
D
B-Suffix Versions Offer 2-mV V
IO
D
Wide Range of Supply Voltages
1.4 V to 16 V
D
True Single-Supply Operation
D
Common-Mode Input Voltage Includes the
Negative Rail
D
Low Noise...30 nV/√Hz Typ at f = 1 kHz
(High-Bias Versions)
description
The TLC252, TLC25L2, and TLC25M2 are
low-cost, low-power dual operational amplifiers
designed to operate with single or dual supplies.
These devices utilize the Texas Instruments
silicon gate LinCMOS process, giving them stable input offset voltages that are available in selected grades
of 2, 5, or 10 mV maximum, very high input impedances, and extremely low input offset and bias currents.
Because the input common-mode range extends to the negative rail and the power consumption is extremely
low, this series is ideally suited for battery-powered or energy-conserving applications. The series offers
operation down to a 1.4-V supply, is stable at unity gain, and has excellent noise characteristics.
These devices have internal electrostatic-discharge (ESD) protection circuits that prevent catastrophic failures
at voltages up to 2000 V as tested under MIL-STD-883C, Method 3015.1. However, care should be exercised
in handling these devices as exposure to ESD may result in a degradation of the device parametric
performance.
AVAILABLE OPTIONS
PACKAGED DEVICES
T
A
VIOmax
AT 25°C
SMALL OUTLINE
(D)
PLASTIC DIP
(P)
CHIP FORM
(Y)
10 mV TLC252CD TLC252CP
TLC252Y
10 mV
5 mV
TLC252CD
TLC252ACD
TLC252CP
TLC252ACP
—
2 mV TLC252BCD TLC252BCP
—
10 mV TLC25L2CD TLC25L2CP
TLC25L2Y
0°C to 70°C
10 mV
5 mV
TLC25L2CD
TLC25L2ACD
TLC25L2CP
TLC25L2ACP
—
2 mV TLC25L2BCD TLC25L2BCP
—
10 mV TLC25M2CD TLC25M2CP TLC25M2Y
5 mV TLC25M2ACD TLC25M2ACP —
2 mV TLC25M2BCD TLC25M2BCP —
The D package is available taped and reeled. Add the suffix R to the device type (e.g., TLC252CDR). Chips are
tested at 25°C.
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.
Copyright 1996, 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.
1
2
3
4
8
7
6
5
1OUT
1IN–
1IN+
V
DD–
/GND
V
DD
2OUT
2IN–
2IN+
D OR P PACKAGE
(TOP VIEW)
ymbol (each amplifier)
+
–
OUT
IN+
IN–
LinCMOS is a trademark of Texas Instruments Incorporated.
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
description (continued)
Because of the extremely high input impedance and low input bias and offset currents, applications for the
TLC252/25_2 series include many areas that have previously been limited to BIFET and NFET product types.
Any circuit using high-impedance elements and requiring small offset errors is a good candidate for
cost-effective use of these devices. Many features associated with bipolar technology are available with
LinCMOS operational amplifiers without the power penalties of traditional bipolar devices. General
applications such as transducer interfacing, analog calculations, amplifier blocks, active filters, and signal
buffering are all easily designed with the TLC252/ 25_2 series devices. Remote and inaccessible equipment
applications are possible using their low-voltage and low-power capabilities. The TLC252/25_2 series is well
suited to solve the difficult problems associated with single-battery and solar-cell-powered applications. This
series includes devices that are characterized for the commercial temperature range and are available in 8-pin
plastic dip and the small-outline package. The device is also available in chip form.
The TLC252/25_2 series is characterized for operation from 0°C to 70°C.
equivalent schematic (each amplifier)
ESD-
Protective
Network
ESD-
Protective
Network
V
DD
IN+
IN–
V
DD–
/GND
OUT
8
3, 5
2, 6
4
1, 7
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TLC252Y, TLC25L2Y, and TLC25M2Y chip information
These chips, properly assembled, display characteristics similar to the TLC252/25_2. Thermal compression
or ultrasonic bonding may be used on the doped-aluminum bonding pads. Chips may be mounted with
conductive epoxy or a gold-silicon preform.
BONDING PAD ASSIGNMENTS
CHIP THICKNESS: 15 TYPICAL
BONDING PADS: 4 × 4 MINIMUM
T
JMAX
= 150°C
TOLERANCES ARE ±10%.
ALL DIMENSIONS ARE IN MILS.
PIN (4) IS INTERNALLY CONNECTED
TO BACKSIDE OF CHIP.
+
–
1OUT
1IN+
1IN–
V
DD
V
DD–
/GND
(8)
(6)
(3)
(2)
(5)
(1)
–
+
(7)
2IN+
2IN–
2OUT
(4)
60
73
(2)
(1)
(8)
(7)
(6)
(5)
(3)
(4)
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
†
Supply voltage, V
DD
(see Note 1) 18 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential input voltage, V
ID
(see Note 2) ±18 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
(any input) –0.3 V to 18 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Duration of short circuit at (or below) 25°C free-air temperature (see Note 3) unlimited. . . . . . . . . . . . . . . . . .
Continuous total dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range, T
A
0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260°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 V
DD–
/GND.
2. Differential voltages are at IN+, with respect to IN–.
3. The output may be shorted to either supply. T emperature and/or supply voltages must be limited to ensure 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
D 725 mW 5.8 mW/°C 464 mW
P 1000 mW 8.0 mW/°C 640 mW
recommended operating conditions
MIN MAX UNIT
Supply voltage, V
DD
1.4 16 V
VDD = 1.4 V 0 0.2
p
VDD = 5 V –0.2 4
Common-mode input voltage, V
IC
VDD = 10 V –0.2 9
V
VDD = 16 V –0.2 14
Operating free-air temperature, T
A
0 70 °C
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, VDD = 1.4 V (unless otherwise noted)
TLC252_C TLC25L2_C TLC25M2_C
PARAMETER
TEST CONDITIONS
†
MIN TYP MAX MIN TYP MAX MIN TYP MAX
UNIT
25°C 10 10 10
TLC25_2C
0°C to
70°C
12 12 12
Input
25°C 5 5 5
V
IO
offset
voltage
TLC25_2AC
V
O
= 0.2 V,
RS = 50 Ω
0°C to
70°C
6.5 6.5 6.5
mV
25°C 2 2 2
TLC25_2BC
0°C to
70°C
3 3 3
α
VIO
Average temperature
coefficient of input
offset voltage
25°C
to
70°C
1 1 1 µV/°C
25°C 1 1 1
I
IO
Input offset current VO = 0.2 V
0°C to
70°C
300 300 300
pA
25°C 1 1 1
I
IB
Input bias current VO = 0.2 V
0°C to
70°C
600 600 600
pA
V
ICR
Common-mode input
voltage range
25°C
0 to
0.2
0 to
0.2
0 to
0.2
V
V
OM
Peak output voltage
swing
‡
VID = 100 mV 25°C 450 700 450 700 450 700 mV
A
VD
Large-signal
differential voltage
amplification
VO = 100 to 300 mV ,
RS = 50 Ω
25°C 10 20 20 V/mV
CMRR
Common-mode
rejection ratio
VO = 0.2 V,
VIC = V
ICR
min
25°C 60 77 60 77 60 77 dB
I
DD
Supply current
VO = 0.2 V,
No load
25°C 300 375 25 34 200 250 µA
†
All characteristics are measured under open-loop conditions with zero common-mode input voltage unless otherwise specified. Unless otherwise
noted, an output load resistor is connected from the output to ground and has the following value: for low bias RL = 1 MΩ, for medium bias
RL = 100 kΩ, and for high bias RL = 10 kΩ.
‡
The output swings to the potential of V
DD–
/GND.
operating characteristics, VDD = 1.4 V, TA = 25°C
TLC252_C TLC25L2_C TLC25M2_C
PARAMETER
TEST CONDITIONS
MIN TYP MAX MIN TYP MAX MIN TYP MAX
UNIT
B
1
Unity-gain bandwidth
AV = 40 dB,
CL = 10 pF,
RS = 50 Ω
12 12 12 kHz
SR Slew rate at unity gain See Figure 1 0.1 0.001 0.01 V/µs
Overshoot factor See Figure 1 30% 35% 35%
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted)
PARAMETER TEST CONDITIONS
T
†
TLC252C, TLC252AC,
TLC252BC
UNIT
A
MIN TYP MAX
V
= 1.4 V, V
= 0,
25°C 1.1 10
TLC252C
O
,
RS = 50 Ω,
IC
,
RL = 10 kΩ
Full range
12
p
V
= 1.4 V, V
= 0,
25°C 0.9 5
VIOInput offset voltage
TLC252AC
O
,
RS = 50 Ω,
IC
,
RL = 10 kΩ
Full range
6.5
mV
V
= 1.4 V, V
= 0,
25°C 0.23 2
TLC252BC
O
,
RS = 50 Ω,
IC
,
RL = 10 kΩ
Full range
3
α
VIO
Average temperature coefficient of
input offset voltage
25°C to 70°C 1.8 µV/°C
p
25°C 0.1
p
IIOInput offset current (see Note 4)
V
O
= 2.5 V,
V
IC
= 2.5
V
70°C 7 300
pA
p
25°C 0.6
p
IIBInput bias current (see Note 4)
V
O
=
2.5 V
,
V
IC
=
2.5 V
70°C 40 600
pA
Common-mode input voltage
25°C
–0.2
to
4
–0.3
to
4.2
V
V
ICR
g
range (see Note 5)
Full range
–0.2
to
3.5
V
25°C 3.2 3.8
V
OH
High-level output voltage VID = 100 mV , RL = 10 kΩ
0°C
3 3.8
V
70°C 3 3.8
25°C 0 50
V
OL
Low-level output voltage VID = –100 mV, IOL = 0
0°C 0 50
mV
70°C 0 50
25°C 5 23
A
VD
Large-signal differential voltage
p
VO = 0.25 V to 2 V, RL = 10 kΩ
0°C
4 27
V/mV
am lification
70°C 4 20
25°C 65 80
CMRR Common-mode rejection ratio VIC = V
ICR
min
0°C 60 84
dB
70°C 60 85
25°C 65 95
k
SVR
Supply-voltage rejection ratio
VDD = 5 V to 10 V, VO = 1.4 V
0°C
60 94
dB
(∆VDD/∆VDD)
70°C 60 96
25°C 1.4 3.2
I
DD
Supply current (two amplifiers)
V
O
=
2.5 V
,
V
IC
=
2.5 V
,
0°C
1.6 3.6
mA
No load
70°C 1.2 2.6
†
Full range is 0°C to 70°C.
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, VDD = 10 V (unless otherwise noted)
PARAMETER TEST CONDITIONS
T
†
TLC252C, TLC252AC,
TLC252BC
UNIT
A
MIN TYP MAX
V
= 1.4 V, V
= 0,
25°C 1.1 10
TLC252C
O
,
RS = 50 Ω,
IC
,
RL = 10 kΩ
Full range
12
p
V
= 1.4 V, V
= 0,
25°C 0.9 5
VIOInput offset voltage
TLC252AC
O
,
RS = 50 Ω,
IC
,
RL = 10 kΩ
Full range
6.5
mV
V
= 1.4 V, V
= 0,
25°C 0.29 2
TLC252BC
O
,
RS = 50 Ω,
IC
,
RL = 10 kΩ
Full range
3
α
VIO
Average temperature coefficient of input
offset voltage
25°C to 70°C 2 µV/°C
p
25°C 0.1
p
IIOInput offset current (see Note 4)
V
O
= 2.5 V,
V
IC
= 2.5
V
70°C 7 300
pA
p
25°C 0.6
p
IIBInput bias current (see Note 4)
V
O
=
2.5 V
,
V
IC
=
2.5 V
70°C 50 600
pA
Common-mode input voltage
25°C
–0.2
to
9
–0.3
to
9.2
V
V
ICR
g
range (see Note 5)
Full range
–0.2
to
8.5
V
25°C 8 8.5
V
OH
High-level output voltage VID = 100 mV , RL = 10 kΩ
0°C
8 8.5
V
70°C 7.8 8.4
25°C 0 50
V
OL
Low-level output voltage VID = –100 mV, IOL = 0
0°C 0 50
mV
70°C 0 50
25°C 10 36
A
VD
Large-signal differential voltage
p
VO = 1 V to 6 V, RL = 10 kΩ
0°C
7.5 42
V/mV
am lification
70°C 7.5 32
25°C 65 85
CMRR Common-mode rejection ratio VIC = V
ICR
min
0°C 60 88
dB
70°C 60 88
25°C 65 95
k
SVR
Supply-voltage rejection ratio
VDD = 5 V to 10 V, VO = 1.4 V
0°C
60 94
dB
(∆VDD/∆VDD)
70°C 60 96
25°C 1.9 4
I
DD
Supply current (two amplifiers)
V
O
=
5 V
,
V
IC
=
5 V
,
0°C
2.3 4.4
mA
No load
70°C 1.6 3.4
†
Full range is 0°C to 70°C.
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
operating characteristics, VDD = 5 V
PARAMETER TEST CONDITIONS T
TLC252C, TLC252AC,
TLC252BC
UNIT
A
MIN TYP MAX
25°C 3.6
V
I(PP)
= 1 V
0°C 4
R
= 10 kΩ, C
= 20 pF,
()
70°C 3
SR
Slew rate at unity gain
L
,
See Figure 1
L
,
25°C 2.9
V/µs
V
I(PP)
= 2.5 V
0°C 3.1
()
70°C 2.5
V
n
Equivalent input noise voltage f = 1 kHz, RS = 20 Ω, See Figure 2 25°C 25 nV/√Hz
25°C 320
B
OM
Maximum output-swing bandwidth
VO = VOH,
CL = 20 pF, RL = 100 kΩ,
0°C
340
kHz
See Figure
70°C 260
25°C 1.7
B
1
Unity-gain bandwidth VI = 10 mV, CL = 20 pF, See Figure 3
0°C
2
MHz
70°C 1.3
25°C 46°
φ
m
Phase margin
V
I
= 10 mV,f =
B
1
,
C
L
= 20 pF,
0°C
47°
See Figure 3
70°C 43°
operating characteristics, VDD = 10 V
PARAMETER TEST CONDITIONS T
TLC252C, TLC252AC,
TLC252BC
UNIT
A
MIN TYP MAX
25°C 5.3
V
I(PP)
= 1 V
0°C 5.9
R
= 10 kΩ, C
= 20 pF,
()
70°C 4.3
SR
Slew rate at unity gain
L
,
See Figure 1
L
,
25°C 4.6
V/µs
V
I(PP)
= 5.5 V
0°C 5.1
()
70°C 3.8
V
n
Equivalent input noise voltage f = 1 kHz, RS = 20 Ω, See Figure 2 25°C 25 nV/√Hz
25°C 200
B
OM
Maximum output-swing bandwidth
VO = VOH,
CL = 20 pF, RL = 100 kΩ,
0°C
220
kHz
See Figure 1
70°C 140
25°C 2.2
B
1
Unity-gain bandwidth VI = 10 mV, CL = 20 pF, See Figure 3
0°C
2.5
MHz
70°C 1.8
25°C 49°
φ
m
Phase margin
V
I
=
10 mV
,f =
B
1
,
C
L
=
20 pF
,
0°C
50°
See Figure 3
70°C 46°
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted)
PARAMETER TEST CONDITIONS
T
A
†
TLC25L2C
TLC25L2AC
TLC25L2BC
UNIT
MIN TYP MAX
V
= 1.4 V, V
= 0,
25°C 1.1 10
TLC252C
O
,
RS = 50 Ω,
IC
,
RL = 1 MΩ
Full range
12
p
V
= 1.4 V, V
= 0,
25°C 0.9 5
VIOInput offset voltage
TLC252AC
O
,
RS = 50 Ω,
IC
,
RL = 1 MΩ
Full range
6.5
mV
V
= 1.4 V, V
= 0,
25°C 0.204 2
TLC252BC
O
,
RS = 50 Ω,
IC
,
RL = 1 MΩ
Full range
3
α
VIO
Average temperature coefficient of
input offset voltage
25°C to 70°C 1.1 µV/°C
p
25°C 0.1
p
IIOInput offset current (see Note 4)
V
O
= 2.5 V,
V
IC
= 2.5
V
70°C 7 300
pA
p
25°C 0.6
p
IIBInput bias current (see Note 4)
V
O
= 2.5 V,
V
IC
= 2.5
V
70°C 50 600
pA
Common-mode input voltage
25°C
–0.2
to
4
–0.3
to
4.2
V
V
ICR
g
range (see Note 5)
Full range
–0.2
to
3.5
V
25°C 3.2 4.1
V
OH
High-level output voltage VID = 100 mV , RL = 1 MΩ
0°C
3 4.1
V
70°C 3 4.2
25°C 0 50
V
OL
Low-level output voltage VID = –100 mV, IOL = 0
0°C
0 50
mV
70°C 0 50
25°C 50 700
A
VD
Large-signal differential voltage
p
VO = 0.25 V to 2 V, RL = 1 MΩ
0°C
50 700
V/mV
am lification
70°C 50 380
25°C 65 94
CMRR Common-mode rejection ratio VIC = V
ICR
min
0°C 60 95
dB
70°C 60 95
25°C 70 97
k
SVR
Supply-voltage rejection ratio
VDD = 5 V to 10 V, VO = 1.4 V
0°C
60 97
dB
(∆VDD/∆VDD)
70°C 60 98
25°C 20 34
I
DD
Supply current (two amplifiers)
V
O
= 2.5 V,
V
IC
= 2.5 V,
0°C
24 42
µA
No load
70°C 16 28
†
Full range is 0°C to 70°C.
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
10
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, VDD = 10 V (unless otherwise noted)
PARAMETER TEST CONDITIONS
T
A
†
TLC25L2C
TLC25L2AC
TLC25L2BC
UNIT
MIN TYP MAX
V
= 1.4 V, V
= 0,
25°C 1.1 10
TLC252C
O
,
RS = 50 Ω,
IC
,
RL = 1 MΩ
Full range
12
p
V
= 1.4 V, V
= 0,
25°C 0.9 5
VIOInput offset voltage
TLC252AC
O
,
RS = 50 Ω,
IC
,
RL = 1 MΩ
Full range
6.5
mV
V
= 1.4 V, V
= 0,
25°C 0.235 2
TLC252BC
O
,
RS = 50 Ω,
IC
,
RL = 1 MΩ
Full range
3
α
VIO
Average temperature coefficient of
input offset voltage
25°C to 70°C 1 µV/°C
p
25°C 0.1
p
IIOInput offset current (see Note 4)
V
O
= 5 V,
V
IC
= 5
V
70°C 8 300
pA
p
25°C 0.7
p
IIBInput bias current (see Note 4)
V
O
= 5 V,
V
IC
= 5
V
70°C 50 600
pA
Common-mode input voltage
25°C
–0.2
to
9
–0.3
to
9.2
V
V
ICR
g
range (see Note 5)
Full range
–0.2
to
8.5
V
25°C 8 8.9
V
OH
High-level output voltage VID = 100 mV , RL = 1 MΩ
0°C
7.8 8.9
V
70°C 7.8 8.9
25°C 0 50
V
OL
Low-level output voltage VID = –100 mV, IOL = 0
0°C
0 50
mV
70°C 0 50
25°C 50 860
A
VD
Large-signal differential voltage
p
VO = 1 V to 6 V, RL = 1 MΩ
0°C
50 1025
V/mV
am lification
70°C 50 660
25°C 65 97
CMRR Common-mode rejection ratio VIC = V
ICR
min
0°C 60 97
dB
70°C 60 97
25°C 70 97
k
SVR
Supply-voltage rejection ratio
VDD = 5 V to 10 V, VO = 1.4 V
0°C
60 97
dB
(∆VDD/∆VDD)
70°C 60 98
25°C 29 46
I
DD
Supply current (two amplifiers)
V
O
= 5 V,
V
IC
= 5 V,
0°C
36 66
µA
No load
70°C 22 40
†
Full range is 0°C to 70°C.
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
11
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
operating characteristics, VDD = 5 V
PARAMETER TEST CONDITIONS T
A
TLC25L2C
TLC25L2AC
TLC25L2BC
UNIT
MIN TYP MAX
25°C 0.03
V
I(PP)
= 1 V
0°C 0.04
R
= 1 MΩ, C
= 20 pF,
()
70°C 0.03
SR
Slew rate at unity gain
L
,
See Figure 1
L
,
25°C 0.03
V/µs
V
I(PP)
= 2.5 V
0°C 0.03
()
70°C 0.02
V
n
Equivalent input noise voltage f = 1 kHz, RS = 20 Ω, See Figure 2 25°C 68 nV/√Hz
25°C 5
B
OM
Maximum output-swing
VO = VOH,
CL = 20 pF, RL = 1 MΩ,
0°C
6
kHz
bandwidth
See Figure
70°C 4.5
25°C 85
B
1
Unity-gain bandwidth VI = 10 mV, CL = 20 pF, See Figure 3
0°C
100
MHz
70°C 65
25°C 34°
φ
m
Phase margin
V
I
= 10 mV,f =
B
1
,
C
L
= 20 pF,
0°C
36°
See Figure 3
70°C 30°
operating characteristics, VDD = 10 V
PARAMETER TEST CONDITIONS T
A
TLC25L2C
TLC25L2AC
TLC25L2BC
UNIT
MIN TYP MAX
25°C 0.05
V
I(PP)
= 1 V
0°C 0.05
R
= 1 MΩ, C
= 20 pF,
()
70°C 0.04
SR
Slew rate at unity gain
L
,
See Figure 1
L
,
25°C 0.04
V/µs
V
I(PP)
= 5.5 V
0°C 0.05
()
70°C 0.04
V
n
Equivalent input noise voltage f = 1 kHz, RS = 20 Ω, See Figure 2 25°C 68 nV/√Hz
25°C 1
B
OM
Maximum output-swing
VO = VOH,
CL = 20 pF, RL = 1 MΩ,
0°C
1.3
kHz
bandwidth
See Figure 1
70°C 0.9
25°C 110
B
1
Unity-gain bandwidth VI = 10 mV, CL = 20 pF, See Figure 3
0°C
125
MHz
70°C 90
25°C 38°
φ
m
Phase margin
V
I
=
10 mV
,f =
B
1
,
C
L
=
20 pF
,
0°C
40°
See Figure 3
70°C 34°
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
12
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, VDD = 5 V (unless otherwise noted)
PARAMETER TEST CONDITIONS
T
A
†
TLC25M2C
TLC25M2AC
TLC25M2BC
UNIT
MIN TYP MAX
V
= 1.4 V, V
= 0,
25°C 1.1 10
TLC252C
O
,
RS = 50 Ω,
IC
,
RL = 100 kΩ
Full range
12
p
V
= 1.4 V, V
= 0,
25°C 0.9 5
VIOInput offset voltage
TLC252AC
O
,
RS = 50 Ω,
IC
,
RL = 100 kΩ
Full range
6.5
mV
V
= 1.4 V, V
= 0,
25°C 0.22 2
TLC252BC
O
,
RS = 50 Ω,
IC
,
RL = 100 kΩ
Full range
3
α
VIO
Average temperature coefficient of
input offset voltage
25°C to 70°C 1.7 µV/°C
p
25°C 0.1
p
IIOInput offset current (see Note 4)
V
O
= 2.5 V,
V
IC
= 2.5
V
70°C 7 300
pA
p
25°C 0.6
p
IIBInput bias current (see Note 4)
V
O
= 2.5 V,
V
IC
= 2.5
V
70°C 40 600
pA
Common-mode input voltage
25°C
–0.2
to
4
–0.3
to
4.2
V
V
ICR
g
range (see Note 5)
Full range
–0.2
to
3.5
V
25°C 3.2 3.9
V
OH
High-level output voltage VID = 100 mV , RL = 100 kΩ
0°C
3 3.9
V
70°C 3 4
25°C 0 50
V
OL
Low-level output voltage VID = –100 mV, IOL = 0
0°C
0 50
mV
70°C 0 50
25°C 25 170
A
VD
Large-signal differential voltage
p
VO = 0.25 V to 2 V, RL = 100 kΩ
0°C
15 200
V/mV
am lification
70°C 15 140
25°C 65 91
CMRR Common-mode rejection ratio VIC = V
ICR
min
0°C 60 91
dB
70°C 60 92
25°C 70 93
k
SVR
Supply-voltage rejection ratio
VDD = 5 V to 10 V, VO = 1.4 V
0°C
60 92
dB
(∆VDD/∆VDD)
70°C 60 94
25°C 210 560
I
DD
Supply current (two amplifiers)
V
O
= 2.5 V,
V
IC
= 2.5 V,
0°C
250 640
µA
No load
70°C 170 440
†
Full range is 0°C to 70°C.
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics at specified free-air temperature, VDD = 10 V (unless otherwise noted)
PARAMETER TEST CONDITIONS
T
A
†
TLC25M2C
TLC25M2AC
TLC25M2BC
UNIT
MIN TYP MAX
V
= 1.4 V, V
= 0,
25°C 1.1 10
TLC252C
O
,
RS = 50 Ω,
IC
,
RL = 100 kΩ
Full range
12
p
V
= 1.4 V, V
= 0,
25°C 0.9 5
VIOInput offset voltage
TLC252AC
O
,
RS = 50 Ω,
IC
,
RL = 100 kΩ
Full range
6.5
mV
V
= 1.4 V, V
= 0,
25°C 0.224 2
TLC252BC
O
,
RS = 50 Ω,
IC
,
RL = 100 kΩ
Full range
3
α
VIO
Average temperature coefficient of
input offset voltage
25°C to 70°C 2.1 µV/°C
p
25°C 0.1
p
IIOInput offset current (see Note 4)
V
O
= 5 V,
V
IC
= 5
V
70°C 7 300
pA
p
25°C 0.7
p
IIBInput bias current (see Note 4)
V
O
= 5 V,
V
IC
= 5
V
70°C 50 600
pA
Common-mode input voltage
25°C
–0.2
to
9
–0.3
to
9.2
V
V
ICR
g
range (see Note 5)
Full range
–0.2
to
8.5
V
25°C 8 8.7
V
OH
High-level output voltage VID = 100 mV , RL = 100 kΩ
0°C
7.8 8.7
V
70°C 7.8 8.7
25°C 0 50
V
OL
Low-level output voltage VID = –100 mV, IOL = 0
0°C
0 50
mV
70°C 0 50
25°C 25 275
A
VD
Large-signal differential voltage
p
VO = 1 V to 6 V, RL = 100 kΩ
0°C
15 320
V/mV
am lification
70°C 15 230
25°C 65 94
CMRR Common-mode rejection ratio VIC = V
ICR
min
0°C 60 94
dB
70°C 60 94
25°C 70 93
k
SVR
Supply-voltage rejection ratio
VDD = 5 V to 10 V, VO = 1.4 V
0°C
60 92
dB
(∆VDD/∆VDD)
70°C 60 94
25°C 285 600
I
DD
Supply current (two amplifiers)
V
O
= 5 V,
V
IC
= 5 V,
0°C
345 800
µA
No load
70°C 220 560
†
Full range is 0°C to 70°C.
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
14
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
operating characteristics, VDD = 5 V
PARAMETER TEST CONDITIONS T
A
TLC25M2C
TLC25M2AC
TLC25M2BC
UNIT
MIN TYP MAX
25°C 0.43
V
I(PP)
= 1 V
0°C 0.46
R
= 100 kΩ, C
= 20 pF,
()
70°C 0.36
SR
Slew rate at unity gain
L
,
See Figure 1
L
,
25°C 0.40
V/µs
V
I(PP)
= 2.5 V
0°C 0.43
()
70°C 0.34
V
n
Equivalent input noise voltage f = 1 kHz, RS = 20 Ω, See Figure 2 25°C 32 nV/√Hz
25°C 55
B
OM
Maximum output-swing bandwidth
VO = VOH,
CL = 20 pF, RL = 100 kΩ,
0°C
60
kHz
See Figure
70°C 50
25°C 525
B
1
Unity-gain bandwidth VI = 10 mV, CL = 20 pF, See Figure 3
0°C
600
MHz
70°C 400
25°C 40°
φ
m
Phase margin
V
I
= 10 mV,f =
B
1
,
C
L
= 20 pF,
0°C
41°
See Figure 3
70°C 39°
operating characteristics, VDD = 10 V
PARAMETER TEST CONDITIONS T
A
TLC25M2C
TLC25M2AC
TLC25M2BC
UNIT
MIN TYP MAX
25°C 0.62
V
I(PP)
= 1 V
0°C 0.67
R
= 100 kΩ, C
= 20 pF,
()
70°C 0.51
SR
Slew rate at unity gain
L
,
See Figure 1
L
,
25°C 0.56
V/µs
V
I(PP)
= 5.5 V
0°C 0.61
()
70°C 0.46
V
n
Equivalent input noise voltage f = 1 kHz, RS = 20 Ω, See Figure 2 25°C 32 nV/√Hz
25°C 35
B
OM
Maximum output-swing bandwidth
VO = VOH,
CL = 20 pF, RL = 100 kΩ,
0°C
40
kHz
See Figure 1
70°C 30
25°C 635
B
1
Unity-gain bandwidth VI = 10 mV, CL = 20 pF, See Figure 3
0°C
710
MHz
70°C 510
25°C 43°
φ
m
Phase margin
V
I
=
10 mV
,f =
B
1
,
C
L
=
20 pF
,
0°C
44°
See Figure 3
70°C 42°
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
15
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics, VDD = 5 V, TA = 25°C
TLC252Y TLC25L2Y TLC25M2Y
PARAMETER
TEST CONDITIONS
MIN TYP MAX MIN TYP MAX MIN TYP MAX
UNIT
V
IO
Input offset voltage
VO = 1.4 V,
RS = 50 Ω,
VIC = 0 V,
See Note 6
1.1 10 1.1 10 1.1 10 mV
α
VIO
Average temperature
coefficient of input
offset voltage
1.8 1.1 1.7 µV/°C
I
IO
Input offset current
(see Note 4)
VO = VDD/2,
VIC = VDD/2
0.1 0.1 0.1 pA
I
IB
Input bias current
(see Note 4)
VO = VDD/2,
VIC = VDD/2
0.6 0.6 0.6 pA
V
ICR
Common-mode input
voltage range
(see Note 5)
–0.2
to
4
–0.3
to
4.2
–0.2
to
4
–0.3
to
4.2
–0.2
to
4
–0.3
to
4.2
V
V
OH
High-level output
voltage
VID = 100 mV ,
See Note 6
3.2 3.8 3.2 4.1 3.2 3.9 V
V
OL
Low-level output
voltage
VID = –100 mV,
IOL = 0
0 50 0 50 0 50 mV
A
VD
Large-signal
differential voltage
amplification
VO = 0.25 V ,
See Note 6
5 23 50 700 25 170 V/mV
CMRR
Common-mode
rejection ratio
VIC = V
ICR
min 65 80 65 94 65 91 dB
k
SVR
Supply-voltage
rejection ratio
(∆VDD/∆VIO)
VDD = 5 V to 10 V,
VO = 1.4 V
65 95 70 97 70 93 dB
I
DD
Supply current
VO = VDD/2,
VIC = VDD/2,
No load
1.4 3.2 0.02 0.034 0.21 0.56 mA
operating characteristics, VDD = 5 V, TA = 25°C
TLC252Y TLC25L2Y TLC25M2Y
PARAMETER
TEST CONDITIONS
MIN TYP MAX MIN TYP MAX MIN TYP MAX
UNIT
Slew rate at C
= 20 pF, V
= 1 V
3.6 0.03 0.43
unity gain
L
,
See Note 6
I(PP)
V
I(PP)
= 2.5 V
2.9 0.03 0.40
V/µs
V
n
Equivalent input
noise voltage
f = 1 kHz, RS = 20 Ω 2.5 68 32
nV√/Hz
B
OM
Maximum outputswing bandwidth
VO = VOH,
RL = 10 kΩ
CL = 20 pF,
320 5 55 kHz
B
1
Unity-gain
bandwidth
VI = 10 mV, CL = 20 pF 1.7 0.085 0.525 MHz
φ
m
Phase margin
f = B1,
CL = 20 pF
VI = 10 mV,
46° 34° 40°
NOTES: 4. The typical values of input bias current and input offset current below 5 pA were determined mathematically.
5. This range also applies to each input individually.
6. For low-bias mode, RL = 1 MΩ; for medium-bias mode, RL = 100 kΩ, and for high-bias mode, RL = 10 kΩ.
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
16
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
single-supply versus split-supply test circuits
Because the TLC252, TLC25L2, and TLC25M2 are optimized for single-supply operation, circuit configurations
used for the various tests often present some inconvenience since the input signal, in many
cases, must be offset from ground. This inconvenience can be avoided by testing the device with split supplies
and the output load tied to the negative rail. A comparison of single-supply versus split-supply test circuits is
shown below. The use of either circuit gives the same result.
+
–
C
L
R
L
V
I
V
O
V
DD
+
–
C
L
R
L
V
I
V
O
V
DD+
V
DD–
(a) SINGLE SUPPLY (b) SPLIT SUPPLY
Figure 1. Unity-Gain Amplifier
(a) SINGLE SUPPLY
(a) SPLIT SUPPLY
+
–
1/2 V
DD
V
O
V
DD
2 kΩ
20 Ω
20 Ω
+
–
V
O
V
DD
2 kΩ
20 Ω20 Ω
V
DD–
Figure 2. Noise-Test Circuit
(a) SINGLE SUPPLY (a) SPLIT SUPPLY
+
–
1/2 V
DD
V
O
V
DD
10 kΩ
100 Ω
C
L
V
I
+
–
V
O
V
DD+
10 kΩ
100 Ω
C
L
V
I
V
DD–
Figure 3. Gain-of-100 Inverting Amplifier
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
17
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Table of Graphs
FIGURE
pp
vs Supply voltage 4
IDDSupply current
yg
vs Free-air temperature 5
Low bias vs Frequency 6
A
VD
Large-signal differential voltage amplification
Medium bias
vs Frequency 7
High bias vs Frequency 8
Low bias vs Frequency 6
Phase shift
Medium bias vs Frequency 7
High bias vs Frequency 8
Figure 4
10
0
024681012
100
1000
SUPPLY CURRENT
vs
SUPPLY VOLTAGE
10000
14 16 18 20
– Supply Current –I
DD
Aµ
VDD – Supply Voltage – V
VO = VIC = 0.2 V
DD
No Load
TA = 25°C
High-Bias Versions
Medium-Bias Versions
Low-Bias Versions
Figure 5
10
0
0102030405060
100
1000
10000
70 80
– Supply Current –I
DD
Aµ
TA – Free-Air Temperature – °C
SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
VDD = 10 V
VIC = 0 V
VO = 2 V
No Load
High-Bias Versions
Medium-Bias Versions
Low-Bias Versions
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
18
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
0.1 1 10 100 1 k 10 k 100 k
LOW-BIAS LARGE-SIGNAL
DIFFERENTIAL VOLTAGE AMPLIFICATION
AND PHASE SHIFT
vs
FREQUENCY
Frequency – Hz
10
7
10
6
10
5
10
4
10
3
10
2
10
1
1
0.1
Phase Shift
(right scale)
AVD (left scale)
VDD = 10 V
RL = 1 MΩ
TA = 25°C
Phase Shift
0°
30°
60°
90°
120°
150°
180°
AVD – Low-Bias Large-Signal Differential
A
VD
Voltage Amplification
Figure 6
1 10 100 1 k 10 k 100 k 1 M
MEDIUM-BIAS LARGE-SIGNAL
DIFFERENTIAL VOLTAGE AMPLIFICATION
AND PHASE SHIFT
vs
FREQUENCY
Frequency – Hz
10
7
10
6
10
5
10
4
10
3
10
2
10
1
1
0.1
Phase Shift
(right scale)
AVD (left scale)
VDD = 10 V
RL = 100 kΩ
TA = 25°C
Phase Shift
0°
30°
60°
90°
120°
150°
180°
AVD – Medium-Bias Large-Signal Differential
A
VD
Voltage Amplification
Figure 7
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
19
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
10 100 1 k 10 k 100 k 1 M 10 M
Phase Shift
HIGH-BIAS LARGE-SIGNAL
DIFFERENTIAL VOLTAGE AMPLIFICATION
AND PHASE SHIFT
vs
FREQUENCY
Frequency – Hz
10
7
10
6
10
5
10
4
10
3
10
2
10
1
1
0.1
Phase Shift (right scale)
AVD (left scale)
0°
30°
60°
90°
120°
150°
180°
VDD = 10 V
RL = 10 kΩ
TA = 25°C
AVD – High-Bias Large-Signal Differential
A
VD
Voltage Amplification
Figure 8
TLC252, TLC252A, TLC252B, TLC252Y, TLC25L2, TLC25L2A, TLC25L2B
TLC25L2Y, TLC25M2, TLC25M2A, TLC25M2B, TLC25M2Y
LinCMOS DUAL OPERATIONAL AMPLIFIERS
SLOS002G – JUNE 1983 – REVISED AUGUST 1996
20
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
latch-up avoidance
Junction-isolated CMOS circuits have an inherent parasitic PNPN structure that can function as an SCR. Under
certain conditions, this SCR may be triggered into a low-impedance state, resulting in excessive supply current.
To avoid such conditions, no voltage greater than 0.3 V beyond the supply rails should be applied to any pin.
In general, the operational amplifier supplies should be applied simultaneously with, or before, application of
any input signals.
output stage considerations
The amplifier’s output stage consists of a source-follower-connected pullup transistor and an open-drain
pulldown transistor. The high-level output voltage (V
OH
) is virtually independent of the IDD selection and
increases with higher values of V
DD
and reduced output loading. The low-level output voltage (VOL) decreases
with reduced output current and higher input common-mode voltage. With no load, V
OL
is essentially equal to
the potential of V
DD–
/GND.
supply configurations
Even though the TLC252/25_2C series is characterized for single-supply operation, it can be used effectively
in a split-supply configuration if the input common-mode voltage (V
ICR
), output swing (VOL and VOH), and supply
voltage limits are not exceeded.
circuit layout precautions
The user is cautioned that whenever extremely high circuit impedances are used, care must be exercised in
layout, construction, board cleanliness, and supply filtering to avoid hum and noise pickup, as well as excessive
dc leakages.
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Copyright 1998, Texas Instruments Incorporated
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