TEXAS INSTRUMENTS TLE2426, TLE2426Y Technical data

D

1/2 VI Virtual Ground for Analog Systems

D

Self-Contained 3-terminal TO-226AA
Package

D

Micropower Operation...170 µA Typ,
V

= 5 V

I

D

Wide VI Range...4 V to 40 V

D

High Output-Current Capability
– Source...20 mA Typ
– Sink...20 mA Typ

description

In signal-conditioning applications utilizing a
single power source, a reference voltage equal to
one-half the supply voltage is required for
termination of all analog signal grounds. Texas
Instruments presents a precision virtual ground
whose output voltage is always equal to one-half
the input voltage, the TLE2426 “rail splitter.”

TLE2426, TLE2426Y

THE “RAIL SPLITTER”

PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

D

Excellent Output Regulation
– –45 µV Typ at I
– +15 µV Typ at I

D

Low-Impedance Output...0.0075 Ω Typ

D

Noise Reduction Pin (D, JG, and P
Packages Only)

INPUT/OUTPUT TRANSFER CHARACTERISTICS

10

V

I

8

6

V

Voltage – V

4

O

= 0 to –10 mA

O

= 0 to +10 mA

O

V

I

V

O

VO+

V

I

2

The unique combination of a high-performance,
micropower operational amplifier and a precision-

2

trimmed divider on a single silicon chip results in
a precise V
sourcing current. The TLE2426 provides a low­impedance output with 20 mA of sink and source
capability while drawing less than 280 µA

ratio of 0.5 while sinking and

O/VI

0

0 0.25 0.5 0.75 1

t – Time – s

of supply current over the full input range of 4 V to 40 V. A designer need not pay the price in terms of board
space for a conventional signal ground consisting of resistors, capacitors, operational amplifiers, and voltage
references. The performance and precision of the TLE2426 is available in an easy-to-use, space saving,
3-terminal LP package. For increased performance, the optional 8-pin packages provide a noise-reduction pin.
With the addition of an external capacitor (C

), peak-to-peak noise is reduced while line ripple rejection is

NR

improved.
Initial output tolerance for a single 5-V or 12-V system is better than 1% with 3.6% over the full 40-V input range.

Ripple rejection exceeds 12 bits of accuracy . Whether the application is for a data acquisition front end, analog
signal termination, or simply a precision voltage reference, the TLE2426 eliminates a major source of system
error.

AVAILABLE OPTIONS

PACKAGED DEVICES

SMALL

T

A

0°C to 70°C TLE2426CD — TLE2426CLP TLE2426CP

–40°C to 85°C TLE2426ID — TLE2426ILP TLE2426IP TLE2426Y

–55°C to 125°C TLE2426MD TLE2426MJG TLE2426MLP TLE2426MP

The D and LP packages are available taped and reeled in the commercial temperature range only. Add R suffix
to the device type (e. g., TLC2426CDR). Chips are tested at 25°C.

OUTLINE

(D)

CERAMIC

DIP

(JG)

PLASTIC

(LP)

PLASTIC

DIP

(P)

CHIP

FORM

(Y)

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.

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.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

Copyright  1998, Texas Instruments Incorporated

1

TLE2426, TLE2426Y
THE “RAIL SPLITTER”
PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

description (continued)

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 85°C. The M suffix devices are characterized over the full military temperature range
of –55°C to 125°C.

D, JG, OR P PACKAGE

(TOP VIEW)

LP PACKAGE

(TOP VIEW)

OUT

COMMON

NC – No internal connection

IN

NC

1
2
3
4

NOISE REDUCTION

8

NC

7

NC

6

NC

5

IN
COMMON
OUT

TLE2426Y chip information

This chip, properly assembled, displays characteristics similar to the TLE2426C. Thermal compression or
ultrasonic bonding may be used on the doped aluminum bonding pads. The chips may be mounted with
conductive epoxy or a gold-silicon preform.

BONDING PAD ASSIGNMENTS

(2) (2)

(1)

(1)

NOISE

REDUCTION

IN

(8)

(2)

COMMON

(3)

+1

(1)

CHIP THICKNESS:
15 MILS TYPICAL

BONDING PADS:
4 × 4 MILS MINIMUM

OUT

TJmax = 150°C
TOLERANCES ARE ±10%.
ALL DIMENSIONS ARE IN

MILS.

60

(3)

(3)

(8)

88

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

NOTE A: Both bonding pads numbered 1, both numbered 2,

and both numbered 3, must be bonded out to the
corresponding functions pin.

TLE2426, TLE2426Y

PACKAGE

UNIT

THE “RAIL SPLITTER”

PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

absolute maximum ratings over operating free-air temperature (unless otherwise noted)

Continuous input voltage, V

40 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

I

†

Continuous filter trap voltage 40 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output current, I

±80 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

O

Duration of short-circuit current at (or below) 25°C (see Note 1) unlimited. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Continuous total power dissipation See Dissipation Rating Table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating free-air temperature range, T

: C suffix 0°C to 70°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

A

I suffix –40°C to 85°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

M suffix –55°C to 125°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Storage temperature range, T

–65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

stg

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 or LP 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.

NOTE 1: The output may be shorted to either supply. T emperature and/or supply voltages must be limited to ensure that the maximum dissipation

rating is not exceeded.

DISSIPATION RATING TABLE

TA ≤ 25°C DERATING FACTOR TA = 70°C TA = 85°C TA = 125°C

POWER RATING ABOVE TA = 25°C POWER RATING POWER RATING POWER RATING

D 725 mV 5.8 mW/°C 464 mW 377 mW 145 mW
JG 1050 mV 8.4 mW/°C 672 mW 546 mW 210 mW
LP 775 mV 6.2 mW/°C 496 mW 403 mW 155 mW

P 1000 mV 8.0 mW/°C 640 mW 520 mW 200 mW

recommended operating conditions

Input voltage, V
Operating free-air temperature, T

I

A

C SUFFIX I SUFFIX M SUFFIX
MIN MAX MIN MAX MIN MAX

4 40 4 40 4 40 V
0 70 –40 85 –55 125 °C

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

3

TLE2426, TLE2426Y

PARAMETER

TEST CONDITIONS

T

†

UNIT

Output voltage

V

Temperature coefficient of output voltage

Full range

25

ppm/°C

Supply current

No load

A

‡

I

mA

(sourcing current)

‡

‡

I

0 to 10 mA

(sinking current)

‡

Short-circuit current

25°C

mA

Output noise voltage, rms

f

25°C

V

V

I

±10 mA

25°C

Output voltage current step response

s

V

01%,I

±10 mA

25°C

Step response

C

100 pF

25°C

s

THE “RAIL SPLITTER”
PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

electrical characteristics at specified free-air temperature, VI = 5 V , IO = 0 (unless otherwise noted)

A

VI = 4 V 1.98 2 2.02

p

p

pp

Output voltage regulation

Output voltage regulation

Output impedance 25°C 7.5 22.5 mΩ
Noise-reduction impedance 25°C 110 kΩ

p

p

p

p

†

Full range is 0°C to 70°C.

‡

The listed values are not production tested.

p

p

p

VI = 5 V
VI = 40 V 19.8 20 20.2
VI = 5 V Full range 2.475 2.525

VI = 5 V 25°C 170 300
VI = 4 to 40 V Full range 400

= 0 to –10

O

IO = 0 to –20 mA 25°C –150 ±450

=

O

IO = 0 to 20 mA 25°C 65 ±235

Sinking current, VO = 5 V
Sourcing current, VO = 0

= 10 Hz to 10 kHz

to 0.1%,

O

to 0.

O

VI = 0 to 5 V, VO to 0.1%
VI = 0 to 5 V, VO to 0.01%

O

O

=

=

CNR = 0
CNR = 1 µF
CL = 0
CL = 100 pF
CL = 0
CL = 100 pF

p

=

L

25°C

25°C –45 ±160

Full range ±250

25°C 15 ±160

Full range ±250

°

°

°

°

°

TLE2426C

MIN TYP MAX

2.48 2.5 2.52

26

–47

120

30
290
275
400
390

20
160

pp

µ

µV

µV

µ

µ

µ

4

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLE2426, TLE2426Y

PARAMETER

TEST CONDITIONS

T

†

UNIT

Output voltage

V

Temperature coefficient of output voltage

Full range

35

ppm/°C

Supply current

No load

A

‡

I

mA

(sourcing current)

‡

‡

I

0 to 10 mA

(sinking current)

‡

Short-circuit current

25°C

mA

Output noise voltage, rms

f

25°C

V

V

I

±10 mA

25°C

Output voltage current step response

s

V

01%,I

±10 mA

25°C

Step response

C

100 pF

25°C

s

THE “RAIL SPLITTER”

PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

electrical characteristics at specified free-air temperature, VI = 12 V , IO = 0 (unless otherwise noted)

A

VI = 4 V 1.98 2 2.02

p

p

pp

Output voltage regulation

Output voltage regulation

Output impedance 25°C 7.5 22.5 mΩ
Noise-reduction impedance 25°C 110 kΩ

p

p

p

p

†

Full range is 0°C to 70°C.

‡

The listed values are not production tested.

p

p

p

VI = 12 V
VI = 40 V 19.8 20 20.2
VI = 12 V Full range 5.945 6.055

VI = 12 V 25°C 195 300
VI = 4 to 40 V Full range 400

= 0 to –10

O

IO = 0 to –20 mA 25°C –150 ±450

=

O

IO = 0 to 20 mA 25°C 65 ±235

Sinking current, VO = 12 V
Sourcing current, VO = 0

= 10 Hz to 10 kHz

to 0.1%,

O

to 0.

O

VI = 0 to 12 V, VO to 0.1%
VI = 0 to 12 V, VO to 0.01%

=

O

=

O

CNR = 0
CNR = 1 µF
CL = 0
CL = 100 pF
CL = 0
CL = 100 pF

p

=

L

25°C

25°C –45 ±160

Full range ±250

25°C 15 ±160

Full range ±250

°

°

°

°

°

TLE2426C

MIN TYP MAX

5.95 6 6.05

31

–70

120

30
290
275
400
390

20
120

pp

µ

µV

µV

µ

µ

µ

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

5

TLE2426, TLE2426Y

PARAMETER

TEST CONDITIONS

T

†

UNIT

Output voltage

V

Full range

25

ppm/°C

Supply current

No load

A

‡

I

mA

(sourcing current)

‡

‡

(sinking current)

‡

Short-circuit current

25°C

mA

Output noise voltage, rms

f

25°C

V

V

I

±10 mA

25°C

Output voltage current step response

s

V

01%,I

±10 mA

25°C

Step response

C

100 pF

25°C

s

THE “RAIL SPLITTER”
PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

electrical characteristics at specified free-air temperature, VI = 5 V , IO = 0 (unless otherwise noted)

A

VI = 4 V 1.98 2 2.02

p

Temperature coefficient of output volt­age

pp

Output voltage regulation

Output voltage regulation

Output impedance 25°C 7.5 22.5 mΩ
Noise-reduction impedance 25°C 110 kΩ

p

p

p

p

†

Full range is –40°C to 85°C.

‡

The listed values are not production tested.

p

p

VI = 5 V
VI = 40 V 19.8 20 20.2
VI = 5 V Full range 2.47 2.53

VI = 5 V 25°C 170 300
VI = 4 to 40 V Full range 400

= 0 to –10

O

IO = 0 to –20 mA 25°C –150 ±450
IO = 0 to 10 mA 25°C 15 ±160
IO = 0 to 8 mA Full range ±250
IO = 0 to 20 mA 25°C 65 ±235

Sinking current, VO = 5 V
Sourcing current, VO = 0

= 10 Hz to 10 kHz

to 0.1%,

O

to 0.

O

VI = 0 to 5 V, VO to 0.1%
VI = 0 to 5 V, VO to 0.01%

=

O

=

O

CNR = 0
CNR = 1 µF
CL = 0
CL = 100 pF
CL = 0
CL = 100 pF

p

=

L

25°C

25°C –45 ±160

Full range ±250

°

°

°

°

°

TLE2426I

MIN TYP MAX

2.48 2.5 2.52

26

–47

120

30
290
275
400
390

20
160

pp

°

µ

µV

µV

µ

µ

µ

6

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLE2426, TLE2426Y

PARAMETER

TEST CONDITIONS

T

†

UNIT

Output voltage

V

Temperature coefficient of output voltage

Full range

35

ppm/°C

Supply current

No load

A

‡

I

mA

(sourcing current)

‡

‡

(sinking current)

‡

Short-circuit current

25°C

mA

Output noise voltage, rms

f

25°C

V

V

I

±10 mA

25°C

Output voltage current step response

s

V

01%,I

±10 mA

25°C

Step response

C

100 pF

25°C

s

THE “RAIL SPLITTER”

PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

electrical characteristics at specified free-air temperature, VI = 12 V , IO = 0 (unless otherwise noted)

A

VI = 4 V 1.98 2 2.02

p

p

pp

Output voltage regulation

Output voltage regulation

Output impedance 25°C 7.5 22.5 mΩ
Noise-reduction impedance 25°C 110 kΩ

p

p

p

p

†

Full range is –40°C to 85°C.

‡

The listed values are not production tested.

p

p

p

VI = 12 V
VI = 40 V 19.8 20 20.2
VI = 12 V Full range 5.935 6.065

VI = 12 V 25°C 195 300
VI = 4 to 40 V Full range 400

= 0 to –10

O

IO = 0 to –20 mA 25°C –150 ±450
IO = 0 to 10 mA 25°C 15 ±160
IO = 0 to 8 mA Full range ±250
IO = 0 to 20 mA 25°C 65 ±235

Sinking current, VO = 12 V
Sourcing current, VO = 0

= 10 Hz to 10 kHz

to 0.1%,

O

to 0.

O

VI = 0 to 12 V, VO to 0.1%
VI = 0 to 12 V, VO to 0.01%

O

=

O

=

CNR = 0
CNR = 1 µF
CL = 0
CL = 100 pF
CL = 0
CL = 100 pF

p

=

L

25°C

25°C –45 ±160

Full range ±250

°

°

°

°

°

TLE2426I

MIN TYP MAX

5.95 6 6.05

31

–70

120

30
290
275
400
390

20
120

pp

µ

µV

µV

µ

µ

µ

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

7

TLE2426, TLE2426Y

PARAMETER

TEST CONDITIONS

T

†

UNIT

Output voltage

V

Temperature coefficient of output voltage

Full range

25

ppm/°C

Supply current

No load

A

‡

I

mA

(sourcing current)

‡

‡

(sinking current)

‡

Short-circuit current

25°C

mA

Output noise voltage, rms

f

25°C

V

V

I

±10 mA

25°C

Output voltage current step response

s

V

01%,I

±10 mA

25°C

Step response

C

100 pF

25°C

s

THE “RAIL SPLITTER”
PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

electrical characteristics at specified free-air temperature, VI = 5 V , IO = 0 (unless otherwise noted)

A

VI = 4 V 1.98 2 2.02

p

p

pp

Output voltage regulation

Output voltage regulation

Output impedance 25°C 7.5 22.5 mΩ
Noise-reduction impedance 25°C 110 kΩ

p

p

p

p

†

Full range is –55°C to 125°C.

‡

The listed values are not production tested.

p

p

p

VI = 5 V
VI = 40 V 19.8 20 20.2
VI = 5 V Full range 2.465 2.535

VI = 5 V 25°C 170 300
VI = 4 to 40 V Full range 400

= 0 to –10

O

IO = 0 to –20 mA 25°C –150 ±450
IO = 0 to 10 mA 25°C 15 ±160
IO = 0 to 3 mA Full range ±250
IO = 0 to 20 mA 25°C 65 ±235

Sinking current, VO = 5 V
Sourcing current, VO = 0

= 10 Hz to 10 kHz

to 0.1%,

O

to 0.

O

VI = 0 to 5 V, VO to 0.1%
VI = 0 to 5 V, VO to 0.01%

=

O

=

O

CNR = 0
CNR = 1 µF
CL = 0
CL = 100 pF
CL = 0
CL = 100 pF

p

=

L

25°C

25°C –45 ±160

Full range ±250

°

°

°

°

°

TLE2426M

MIN TYP MAX

2.48 2.5 2.52

26

–47

120

30
290
275
400
390

20
120

pp

µ

µV

µV

µ

µ

µ

8

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLE2426, TLE2426Y

PARAMETER

TEST CONDITIONS

T

†

UNIT

Output voltage

V

Temperature coefficient of output voltage

Full range

35

ppm/°C

Supply current

No load

A

I

mA

(sourcing current)

‡

(sinking current)

‡

Short-circuit current

25°C

mA

Output noise voltage, rms

f

25°C

V

V

I

±10 mA

25°C

Output voltage current step response

s

V

01%,I

±10 mA

25°C

Step response

C

100 pF

25°C

s

THE “RAIL SPLITTER”

PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

electrical characteristics at specified free-air temperature, VI = 12 V , IO = 0 (unless otherwise noted)

A

VI = 4 V 1.98 2 2.02

p

p

pp

Output voltage regulation

Output voltage regulation

Output impedance 25°C 7.5 22.5 mΩ
Noise-reduction impedance 25°C 110 kΩ

p

p

p

p

†

Full range is –55°C to 125°C.

‡

The listed values are not production tested.

p

p

p

VI = 12 V
VI = 40 V 19.8 20 20.2
VI = 12 V Full range 5.925 6.075

VI = 12 V 25°C 195 250
VI = 4 to 40 V Full range 350

= 0 to –10

O

IO = 0 to –20 mA 25°C –150 ±450
IO = 0 to 10 mA 25°C 15 ±160
IO = 0 to 8 mA Full range ±250
IO = 0 to 20 mA 25°C 65 ±235

Sinking current, VO = 12 V
Sourcing current, VO = 0

= 10 Hz to 10 kHz

to 0.1%,

O

to 0.

O

VI = 0 to 12 V, VO to 0.1%
VI = 0 to 12 V, VO to 0.01%

O

O

=

=

CNR = 0
CNR = 1 µF
CL = 0
CL = 100 pF
CL = 0
CL = 100 pF

p

=

L

25°C

25°C –45 ±160

Full range ±250

°

°

°

°

°

TLE2426M

MIN TYP MAX

5.95 6 6.05

31

–70

120

30
290
275
400
390

12
120

pp

µ

µV

µV

µ

µ

µ

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

9

TLE2426, TLE2426Y

PARAMETER

TEST CONDITIONS

UNIT

Output

t)

†

V

Output

t)

†

V

Short-circuit current

mA

Output noise voltage, rms

f

V

V

I

±10 mA

Output voltage current step response

s

V

01%,I

±10 mA

Step response

C

100 pF

s

PARAMETER

TEST CONDITIONS

UNIT

Output

t)

†

V

Output

t)

†

V

Short-circuit current

mA

Output noise voltage, rms

f

kHZ

V

V

to 0.1%

I

±10 mA

Output voltage current, step response

s

V

01%,I

±10 mA

Step response

C

100 pF

s

THE “RAIL SPLITTER”
PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

electrical characteristics at specified free-air temperature, VI = 5 V, IO = 0, TA = 25°C (unless
otherwise noted)

TLE2426Y

MIN TYP MAX

Output voltage VI = 5 V 2.5 V
Supply current No load 170 µA

p

voltage regulation (sourcing curren

p

voltage regulation (sinking curren

Output impedance 7.5 mΩ
Noise-reduction impedance 110 kΩ

p

p

p

p

†

The listed values are not production tested.

p

p

IO = 0 to –10 mA –45
IO = 0 to –20 mA –150
IO = 0 to 10 mA 15
IO = 0 to 20 mA 65

Sinking current, VO = 5 V 26
Sourcing current, VO = 0 –47

= 10 Hz to 10 kHz

to 0.1%,

O

to 0.

O

VI = 0 to 5 V, VO to 0.1%
VI = 0 to 5 V, VO to 0.01%

=

O

=

O

CNR = 0 120
CNR = 1 µF 30
CL = 0 290
CL = 100 pF 275
CL = 0 400
CL = 100 pF 390

p

=

L

20

160

µ

µ

µ

µ

µ

electrical characteristics at specified free-air temperature, VI = 12 V, IO = 0, TA = 25°C (unless
otherwise noted)

TLE2426Y

MIN TYP MAX

Output voltage VI = 12 V 6 V
Supply current No load 195 µA

p

voltage regulation (sourcing curren

p

voltage regulation (sinking curren

Output impedance 7.5 mΩ
Noise-reduction impedance 110 kΩ

p

p

p

p

†

The listed values are not production tested.

p

p

IO = 0 to –10 mA –45
IO = 0 to –20 mA –150
IO = 0 to 3 mA 15
IO = 0 to 20 mA 65

Sinking current, VO = 12 V 31
Sourcing current, VO = 0 –70

= 10 Hz to 10

,

O

to 0.

O

VI = 0 to 12 V, VO to 0.1%
VI = 0 to 12 V, VO to 0.01%

=

O

=

O

CNR = 0 120
CNR = 1 µF 30
CL = 0 290
CL = 100 pF 275
CL = 0 400
CL = 100 pF 390

p

=

L

12

120

µ

µ

µ

µ

µ

10

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

THE “RAIL SPLITTER”

Input bias current

Short-circuit output current

PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

TYPICAL CHARACTERISTICS

Table Of Graphs

FIGURE

Output voltage Distribution 1,2
Output voltage change vs Free-air temperature 3
Output voltage error vs Input voltage 4

p

Output voltage regulation vs Output current 7
Output impedance vs Frequency 8

p

Ripple rejection vs Frequency 13
Spectral noise voltage density vs Frequency 14
Output voltage response to output current step vs Time 15
Output voltage power-up response vs Time 16
Output current vs Load capacitance 17

vs Input voltage 5
vs Free-air temperature 6

vs Input voltage 9,10
vs Free-air temperature 11,12

TLE2426, TLE2426Y

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

11

TLE2426, TLE2426Y
THE “RAIL SPLITTER”
PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

TYPICAL CHARACTERISTICS

DISTRIBUTION

OF

OUTPUT VOLTAGE

3

98 Units Tested
From 2 Wafer Lots

2.5

VI = 5 V
TA = 25°C

2

1.5

1

Percentage of Units – %

0.5

0

2.48 2.49 2.5 2.51 2.52
VO – Output Voltage – V

Figure 1

†

DISTRIBUTION

OF

OUTPUT VOLTAGE

40

98 Units Tested
From 2 Wafer Lots

VI = 12 V
TA = 25°C

30

20

Percentage of Units – %

10

0

6 6.025 6.1

VO – Output Voltage – V

6.05 6.075

Figure 2

VO – Output Voltage Change – mV

∆V

–75

O

–150

150

75

0

–75

OUTPUT VOLTAGE CHANGE

vs

FREE-AIR TEMPERATURE

VI = 40 V IO = 0

VI = 12 V

VI = 4 V, 5 V

–50 –25

TA – Free-Air Temperature – ° C

02550

Figure 3

75 100 125

OUTPUT VOLTAGE ERROR

4

IO = 0

TA = 25°C

3

Error Equals VO/VI Deviation From 50%

2

1

Output Voltage Error – %

0

–1

048121620

VI – Input Voltage – V

vs

INPUT VOLTAGE

24 36 40

Figure 4

28 32

†

Data at high and low temperatures are applicable within the rated operating free-air temperature ranges of the various devices.

12

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLE2426, TLE2426Y

THE “RAIL SPLITTER”

PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

INPUT BIAS CURRENT

INPUT VOLTAGE

300

IO = 0

250

Aµ

200

150

100

IB

I

IIB – Input Bias Current –

50

0

TA = 125°C

0 5 10 15 20 25

TA = 25°C

VI – Input Voltage – V

Figure 5

vs

TYPICAL CHARACTERISTICS

300

250

Aµ

200

TA = –55°C

150

100

IB

I

IIB – Input Bias Current –

50

30 35 40

0

†

INPUT BIAS CURRENT

FREE-AIR TEMPERATURE

IO = 0

–50–75 –20

02550

TA – Free-Air Temperature – ° C

Figure 6

vs

VI = 40 V

VI = 12 V

VI = 5 V

VI = 4 V

75 100 125

OUTPUT VOLTAGE REGULATION

500

Max

µV

250

0

Typ

–250

Output Voltage Regulation –

Min

–500

–20 –10

vs

OUTPUT CURRENT

VI = 5 V or 12 V
TA = 25°C

01020

IO – Output Current – mA

Figure 7

Max

Min

Typ

100

VI = 5 V or 12 V
IO = 0
TA = 25°C

10

1

0.1

– Output Impedance – Ωz

o

0.01

0.001
10 100 1 k

OUTPUT IMPEDANCE

vs

FREQUENCY

10 k

f – Frequency – Hz

100 k

Figure 8

1 M

†

Data at high and low temperatures are applicable within the rated operating free-air temperature ranges of the various devices.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

13

TLE2426, TLE2426Y
THE “RAIL SPLITTER”
PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

SHORT-CIRCUIT OUTPUT CURRENT

vs

INPUT VOLTAGE

0

–20

–40

TA = –55°C

–60

OS

IOS – Short-Circuit Output Current – mA

I

–80

TA = 25°C

0 5 10 15 20 25

VI – Input Voltage – V

Figure 9

TYPICAL CHARACTERISTICS

40

VO = GND

(Output Sourcing)

30

20

10

TA = 125°C

30 35 40

OS

IOS – Short-Circuit Output Current – mA

I

0

0 5 10 15 20 25

†

SHORT-CIRCUIT OUTPUT CURRENT

vs

INPUT VOLTAGE

TA = 25°C

TA = –55°C

TA = 125°C

VO = V

(Output Sinking)

I

30 35 40

VI – Input Voltage – V

Figure 10

SHORT-CIRCUIT OUTPUT CURRENT

vs

FREE-AIR TEMPERATURE

0

–10

–20

–30

–40

–50

–60

–70

OS

IOS – Short-Circuit Output Current – mA

I

–80

–75 –50 –25

VO = GND

(Output Sourcing)

0 25 50 75 100

TA – Free-Air Temperature – ° C

Figure 11

VI = 4 V

VI = 12 V

VI = 5 V

VI = 40 V

125

SHORT-CIRCUIT OUTPUT CURRENT

vs

FREE-AIR TEMPERATURE

40

30

20

10

VO = V

OS

IOS – Short-Circuit Output Current – mA

I

(Output Sinking)

0

–75 –50 –25

I

TA – Free-Air Temperature – ° C

VI = 40 V

VI = 12 V

VI = 5 V

VI = 4 V

02550

Figure 12

75 100 125

†

Data at high and low temperatures are applicable within the rated operating free-air temperature ranges of the various devices.

14

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TYPICAL CHARACTERISTICS

TLE2426, TLE2426Y

THE “RAIL SPLITTER”

PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

RIPPLE REJECTION

100

VI = 5 V or 12 V

90

∆V

= 1 V

I(PP)

IO = 0

80

TA = 25°C

70

60
50

40
30

Ripple Rejection – dB

20
10

0

10 100 1 k 10 k

CNR = 0

f – Frequency – Hz

Figure 13

OUTPUT VOLTAGE RESPONSE

TO OUTPUT CURRENT STEP

1.5 V
4
3

2

1

0

–1

–2

–3

O

VO – Change In Output Voltage – mV

∆V

–4

–1.5 V

0.1%

0.01%

10 mA

IO Step

0 1000 2000

Figure 15

vs

FREQUENCY

VI = 5 V
CL = 100 pF
TA = 25°C

Time – µs

CNR = 1 µF

100 k 1 M

0.01%

0.1%

–10 mA

3000 4000

SPECTRAL NOISE VOLTAGE DENSITY

400

VI = 5 V or 12 V
TA = 25°C

nV/ Hz

300

200

100

– Spectral Noise Voltage Density –

n

V

0

1

OUTPUT VOLTAGE POWER-UP RESPONSE

3

2.5

2

1.5

1

0.5

O

V) – Output Voltage – V

V

0
5

0

vs

FREQUENCY

CNR = 0

CNR = 1 µF

10 100 1 k 10 k

f – Frequency – Hz

100 k

Figure 14

0.1%

Output Voltage Response

IO = 0
CL = 100 pF
TA = 25°C

Input Voltage Step

0 50 100 200

Time – µs

0.01%

150

Figure 16

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

15

TLE2426, TLE2426Y
THE “RAIL SPLITTER”
PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

20

TYPICAL CHARACTERISTICS

STABILITY RANGE

OUTPUT CURRENT

vs

LOAD CAPACITANCE

VI = 5 V

15

TA = 25°C

10

5

0

–5

– Output Current – mA

–10

O

I

–15

–20

–6

10

10–510

CL– Load Capacitance – mF

–4

10

Figure 17

Unstable

Stable

–3

10

–2

10

–1

10

0

10

10

2

1

16

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLE2426, TLE2426Y

THE “RAIL SPLITTER”

PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

MACROMODEL INFORMATION

* TLE2426 OPERATIONAL AMPLIFIER “MACROMODEL” SUBCIRCUIT
* CREATED USING PARTS RELEASE 4.03 0N 08/21/90 AT 13:51
* REV (N/A) SUPPLY VOLTAGE: 5 V
* CONNECTIONS: FILTER

* | | COMMON
* | | | OUTPUT
*||||
.SUBCKT TLE2426 1 3 4 5

C1 11 12 21.66E–12
C2 6 7 30.00E–12
C3 87 0 10.64E–9
CPSR 85 86 15.9E–9
DCM+ 81 82 DX
DCM– 83 81 DX
DC 5 53 DX
DE 54 5 DX
DLP 90 91 DX
DLN 92 90 DX
DP 4 3 DX
ECMR 84 99 (2,99) 1
EGND 99 0 POLY(2) (3,0) (4,0) 0 .5 .5
EPSR 85 0 POLY(1) (3,4) –16.22E–6 3.24E–6
ENSE 89 2 POLY(1) (88,0) 120E–6 1
FB 7 99 POLY(6) VB VC VE VLPVLN VPSR 0 74.8E6 –10E6 10E6 10E6 –10E6 74E6
GA 6 0 11 12 320.4E– 6
GCM 0 6 10 99 1.013E–9
GPSR 85 86 (85,86) 100E–6
GRC1 4 11 (4,11) 3.204E–4
GRC2 4 12 (4,12) 3.204E–4
GRE1 13 10 (13,10) 1.038E–3
GRE2 14 10 (14,10) 1.038E–3
HLIM 90 0 VLIM 1K
HCMR 80 1 POLY(2) VCM+ VCM– 0 1E2 1E2
IRP 3 4 146E–6
IEE 3 10 DC 24.05E–6
IIO 2 0 .2E–9
I1 88 0 1E–21
Q1 11 89 13 QX
Q2 12 80 14 QX
R2 6 9 100.0E3
RCM 84 81 1K
REE 10 99 8.316E6
RN1 87 0 2.55E8
RN2 87 88 11.67E3
RO1 8 5 63
RO2 7 99 62
VCM+ 82 99 1.0
VCM– 83 99 –2.3
VB 9 0 DC 0
VC 3 53 DC 1.400
VE 54 4 DC 1.400
VLIM 7 8 DC 0
VLP 91 0 DC 30
VLN 092DC30
VPSR 0 86 DC 0
RFB 5 2 1K
RIN1 3 1 220K

RIN2 1 4 220K
.MODEL DX D(IS=800.OE–18)
.MODEL QX PNP(IS=800.OE–18 BF=480)
.ENDS

| INPUT

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

17

TLE2426, TLE2426Y
THE “RAIL SPLITTER”
PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

MECHANICAL INFORMATION

D (R-PDSO-G**) PLASTIC SMALL-OUTLINE PACKAGE

14 PIN SHOWN

0.050 (1,27)

14

1

0.069 (1,75) MAX

A

0.020 (0,51)

0.014 (0,35)

0.010 (0,25)

0.004 (0,10)

DIM

8

7

PINS **

0.010 (0,25)

0.157 (4,00)

0.150 (3,81)

M

0.244 (6,20)

0.228 (5,80)

Seating Plane

0.004 (0,10)

8

14

0.008 (0,20) NOM

0°–8°

16

Gage Plane

0.010 (0,25)

0.044 (1,12)

0.016 (0,40)

A MAX

A MIN

NOTES: A. All linear dimensions are in inches (millimeters).

18

B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion, not to exceed 0.006 (0,15).
D. Falls within JEDEC MS-012

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

0.197

(5,00)

0.189

(4,80)

0.344
(8,75)

0.337
(8,55)

0.394

(10,00)

0.386
(9,80)

4040047/D 10/96

TLE2426, TLE2426Y

THE “RAIL SPLITTER”

PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

MECHANICAL INFORMATION

JG (R-GDIP-T8) CERAMIC DUAL-IN-LINE PACKAGE

0.400 (10,20)

0.355 (9,00)

0.063 (1,60)

0.015 (0,38)

0.100 (2,54)

8

1

5

4

0.065 (1,65)

0.045 (1,14)

0.020 (0,51) MIN

0.280 (7,11)

0.245 (6,22)

0.200 (5,08) MAX

0.130 (3,30) MIN

0.023 (0,58)

0.015 (0,38)

0.310 (7,87)

0.290 (7,37)

Seating Plane

0°–15°

0.014 (0,36)

0.008 (0,20)

NOTES: A. All linear dimensions are in inches (millimeters).

B. This drawing is subject to change without notice.
C. This package can be hermetically sealed with a ceramic lid using glass frit.
D. Index point is provided on cap for terminal identification only on press ceramic glass frit seal only.

E. Falls within MIL-STD-1835 GDIP1-T8

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

4040107/C 08/96

19

TLE2426, TLE2426Y
THE “RAIL SPLITTER”
PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

MECHANICAL INFORMATION

LP (O-PBCY-W3) PLASTIC CYLINDRICAL P ACKAGE

0.205 (5,21)

0.175 (4,44)

0.210 (5,34)

0.170 (4,32)

0.022 (0,56)

0.016 (0,41)

0.016 (0,41)

0.014 (0,35)

Seating Plane

0.050 (1,27)

(see Note C)

DIA

Wide

Thick

3 Leads

0.500 (12,70) MIN

0.165 (4,19)

0.125 (3,17)

0.105 (2,67)

0.080 (2,03)

0.055 (1,40)

0.045 (1,14)

0.105 (2,67)

0.095 (2,41)

0.135 (3,43) MIN

3
2

1

0.105 (2,67)

0.080 (2,03)

4040001/B 01/95

NOTES: A. All linear dimensions are in inches (millimeters).

B. This drawing is subject to change without notice.
C. Lead dimensions are not controlled within this area.
D. Falls within JEDEC TO-226AA (TO-226AA replaces TO-92)

20

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

TLE2426, TLE2426Y

THE “RAIL SPLITTER”

PRECISION VIRTUAL GROUND

SLOS098D – AUGUST 1991 – REVISED MA Y 1998

MECHANICAL INFORMATION

P (R-PDIP-T8) PLASTIC DUAL-IN-LINE PACKAGE

0.400 (10,60)

0.355 (9,02)

58

0.260 (6,60)

0.240 (6,10)

41

0.070 (1,78) MAX

0.020 (0,51) MIN

0.200 (5,08) MAX

0.125 (3,18) MIN

0.100 (2,54)

0.021 (0,53)

0.015 (0,38)

NOTES: A. All linear dimensions are in inches (millimeters).

B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-001

0.010 (0,25)

M

0.310 (7,87)

0.290 (7,37)

Seating Plane

0°–15°

0.010 (0,25) NOM

4040082/B 03/95

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

21

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Copyright  1998, Texas Instruments Incorporated