PDS-1244C

Printed in U.S.A. January, 1996

FEATURES

q LOW OFFSET VOLTAGE: 50

q LOW DRIFT: 0.5

q EXCELLENT GAIN ACCURACY:

q LOW INPUT BIAS CURRENT: 5nA max

q HIGH CMR: 117dB min (G = 100)

q INPUTS PROTECTED TO

q WIDE SUPPLY RANGE:

q LOW QUIESCENT CURRENT: 750

q 16-PIN PLASTIC DIP, SOL-16

DESCRIPTION

The INA2141 is a low power, dual instrumentation

amplifier offering excellent accuracy. Its versatile

3-op amp design and small size make it ideal for a

wide range of applications. Current-feedback input

circuitry provides wide bandwidth even at high gain

(200kHz at G = 100).

Simple pin connections set an accurate gain of 10 or

100V/V without external resistors. Internal input pro-

tection can withstand up to

±40V without damage.

The INA2141 is laser trimmed for very low offset

voltage (50

µV), drift (0.5µV/°C) and high common-

mode rejection (117dB at G = 100). It operates with

power supplies as low as

±2.25V, and quiescent cur-

rent is only 750

µA per amplifier—ideal for battery

operated systems.

Packages are 16-pin plastic DIP, and SOL-16

surface-mount, specified for the –40

°C to +85°C

temperature range.

Dual, Low Power, G = 10, 100

INSTRUMENTATION AMPLIFIER

APPLICATIONS

q SENSOR AMPLIFIER

THERMOCOUPLE, RTD, BRIDGE

q MEDICAL INSTRUMENTATION

q MULTIPLE CHANNEL SYSTEMS

INA2141

®

A1A

A2A

A3A

40k

Ω

40k

Ω

40k

Ω

40k

Ω

G = 10

or

100

V+

V–

INA2141

Ref

–

+

Over-Voltage

Protection

25k

Ω

25k

Ω

Over-Voltage

Protection

A1B

A2B

A3B

40k

Ω

40k

Ω

40k

Ω

40k

Ω

Ref

–

+

Over-Voltage

Protection

25k

Ω

25k

Ω

Over-Voltage

Protection

G = 10

or

100

5050

Ω

252

Ω

252

Ω

252

Ω

252

Ω

5050

Ω

1

3

4

2

16

14

13

15

7

6

5

10

11

12

8

9

International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111

Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

INA2141

INA2141

SBOS036