1MHz, 45

OPERATIONAL AMPLIFIERS

FEATURES

q LOW I

q LOW COST

q RAIL-TO-RAIL INPUT AND OUTPUT

q SINGLE SUPPLY: +2.1V to +5.5V

q INPUT BIAS CURRENT: 0.5pA

TSSOP-14

q HIGH SPEED:POWER WITH BANDWIDTH: 1MHz

APPLICATIONS

q PORTABLE EQUIPMENT

q BATTERY-POWERED EQUIPMENT

q SMOKE ALARMS

q CO DETECTORS

q MEDICAL INSTRUMENTATION

DESCRIPTION

The OPA348 series amplifiers are single supply, low-power,

CMOS op amps in micro packaging. Featuring an extended

bandwidth of 1MHz, and a supply current of 45

µA, the

OPA348 series is useful for low-power applications on single

supplies of 2.1V to 5.5V.

Low supply current of 45

µA, and an input bias current of

0.5pA, make the OPA348 series an optimal candidate for

low-power, high-impedance applications such as smoke de-

tectors and other sensors.

The OPA348 is available in the miniature SC70-5,

SOT23-5 and SO-8 packages. The OPA2348 is available in

SOT23-8 and SO-8 packages, and the OPA4348 is offered

in space-saving TSSOP-14 and SO-14 packages. The ex-

tended temperature range of –40

°C to +125°C over all supply

voltages offers additional design flexibility.

OPA348

OPA2348

OPA4348

SBOS213C – NOVEMBER 2001 – REVISED MAY 2002

www.ti.com

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 © 2001, 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.

®

OPA348

OPA3

48

OPA2

348

OPA4

348

PACKAGES

OPA348

OPA2348

OPA4348

SOT23-5

X

SOT23-8

X

SO-8

X

X

TSSOP-14

X

SO-14

X

SC70-5

X

1

2

3

5

4

V+

–In

Out

V–

+In

OPA348

SOT23-5

1

2

3

4

8

7

6

5

NC

V+

Out

NC

NC

–In

+In

V–

OPA348

SO-8

1

2

3

4

8

7

6

5

V+

Out B

–In B

+In B

Out A

–In A

+In A

V–

OPA2348

SOT23-8, SO-8

A

B

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

OPA4348

TSSOP-14, SO-14

AD

BC

1

2

3

5

4

V+

Out

+In

V–

–In

OPA348

SC70-5