Datasheet > INA122U/2K5E4

INA122U/2K5E4

更新时间： 2024-11-23 12:02:07

品牌	Logo	应用领域
BB		仪表放大器
页数	文件大小	规格书
14页	750K
描述
Single Supply, MicroPower INSTRUMENTATION AMPLIFIER

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INA122U/2K5E4 数据手册

INA122

Single Supply, MicroPower

INSTRUMENTATION AMPLIFIER

APPLICATIONS

● PORTABLE, BATTERY OPERATED

FEATURES

● LOW QUIESCENT CURRENT: 60µA

SYSTEMS

● WIDE POWER SUPPLY RANGE

Single Supply: 2.2V to 36V

● INDUSTRIAL SENSOR AMPLIFIER:

Bridge, RTD, Thermocouple

Dual Supply: –0.9/+1.3V to ±18V

● PHYSIOLOGICAL AMPLIFIER:

● COMMON-MODE RANGE TO (V–)–0.1V

● RAIL-TO-RAIL OUTPUT SWING

ECG, EEG, EMG

● MULTI-CHANNEL DATA ACQUISITION

● LOW OFFSET VOLTAGE: 250µV max

● LOW OFFSET DRIFT: 3µV/°C max

● LOW NOISE: 60nV/√Hz

DESCRIPTION

● LOW INPUT BIAS CURRENT: 25nA max

● 8-PIN DIP AND SO-8 SURFACE-MOUNT

The INA122 is a precision instrumentation amplifier

for accurate, low noise differential signal acquisition.

Its two-op-amp design provides excellent performance

with very low quiescent current, and is ideal for

portable instrumentation and data acquisition systems.

The INA122 can be operated with single power sup-

plies from 2.2V to 36V and quiescent current is a mere

60µA. It can also be operated from dual supplies. By

utilizing an input level-shift network, input common-

mode range extends to 0.1V below negative rail (single

supply ground).

V+

INA122

V_IN

V_O

–

_O= (V_IN– V_IN) G

100kΩ

25kΩ

A single external resistor sets gain from 5V/V to

10000V/V. Laser trimming provides very low offset

voltage (250µV max), offset voltage drift (3µV/°C

max) and excellent common-mode rejection.

200k

R_G

G = 5 +

25kΩ

R_G

Package options include 8-pin plastic DIP and SO-8

surface-mount packages. Both are specified for the

–40°C to +85°C extended industrial temperature range.

–

V_IN

100kΩ

Ref

V–

International Airport Industrial Park

•

Mailing Address: PO Box 11400, Tucson, AZ 85734

FAXLine: (800) 548-6133 (US/Canada Only)

• Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111

Internet: http://www.burr-brown.com/

•

Cable: BBRCORP

•

Telex: 066-6491

•

FAX: (520) 889-1510

•

Immediate Product Info: (800) 548-6132

PDS-1388B

Printed in U.S.A. October, 1997

SBOS069

12 3 4 5 6 7...14

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