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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.

Copyright © 1996-2008, Texas Instruments Incorporated

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.

All trademarks are the property of their respective owners.

1

2

3

4

5

6

7

14

13

12

11

10

9

8

Out D

–In D

+In D

V–

+In C

–In C

Out C

Out A

–In A

+In A

V+

+In B

–In B

Out B

OPA4234

SO-14

AD

BC

Low-Power, Precision

SINGLE-SUPPLY OPERATIONAL AMPLIFIERS

FEATURES

q WIDE SUPPLY RANGE:

q SPECIFIED PERFORMANCE:

+2.7V, +5V, and

q LOW QUIESCENT CURRENT: 250

µA/amp

q LOW INPUT BIAS CURRENT: 25nA max

q LOW OFFSET VOLTAGE: 100

µV max

q HIGH CMRR, PSRR, and A

OL

q SINGLE, DUAL, and QUAD VERSIONS

DESCRIPTION

The OPA234 series low-cost op amps are ideal for

single-supply, low-voltage, low-power applications. The

series provides lower quiescent current than older

“1013”-type products and comes in current industry-

standard packages and pinouts. The combination of

low offset voltage, high common-mode rejection, high

power-supply rejection, and a wide supply range pro-

vides excellent accuracy and versatility. Single, dual,

and quad versions have identical specifications for

maximum design flexibility. These general-purpose op

amps are ideal for portable and battery-powered appli-

cations.

The OPA234 series op amps operate from either single

or dual supplies. In single-supply operation, the input

common-mode range extends below ground and the

output can swing to within 50mV of ground. Excellent

phase margin makes the OPA234 series ideal for de-

manding applications, including high load capacitance.

Dual and quad designs feature completely indepen-

dent circuitry for lowest crosstalk and freedom from

interaction.

Single version packages are in an SO-8 surface-mount

and a space-saving MSOP-8 surface-mount. Dual pack-

ages are in an SO-8 surface-mount. Quad packages

are in an SO-14 surface-mount. All are specified for

–40

°C to +85°C operation.

1

2

3

4

8

7

6

5

V+

Out B

–In B

+In B

Out A

–In A

+In A

V–

OPA2234

SO-8

A

B

1

2

3

4

8

7

6

5

NC

V+

Output

Offset Trim

Offset Trim

–In

+In

V–

OPA234

SO-8, MSOP-8

OPA2

34

OPA2

234

OPA2

34

OPA

423

4

OPA234

OPA2234

OPA4234

SBOS055B – MAY 1996 – REVISED APRIL 2008