INA116

更新时间： 2024-11-02 22:48:07

品牌	Logo	应用领域
BB		仪表放大器
页数	文件大小	规格书
9页	248K
描述
Ultra Low Input Bias Current INSTRUMENTATION AMPLIFIER

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INA116 数据手册

INA116

Ultra Low Input Bias Current

INSTRUMENTATION AMPLIFIER

DESCRIPTION

FEATURES

The INA116 is a complete monolithic FET-input instru-

mentation amplifier with extremely low input bias

current. Difet^®inputs and special guarding techniques

yield input bias currents of 3fA at 25°C, and only 25fA

at 85°C. Its 3-op amp topology allows gains to be set

from 1 to 1000 by connecting a single external resistor.

● LOW INPUT BIAS CURRENT: 3fA typ

● BUFFERED GUARD DRIVE PINS

● LOW OFFSET VOLTAGE: 2mV max

● HIGH COMMON-MODE REJECTION:

84dB (G = 10)

● LOW QUIESCENT CURRENT: 1mA

Guard pins adjacent to both input connections can be

used to drive circuit board and input cable guards to

maintain extremely low input bias current.

● INPUT OVER-VOLTAGE PROTECTION: ±40V

The INA116 is available in 16-pin plastic DIP and SOL-16

surface-mount packages, specified for the –40°C to +85°C

temperature range.

APPLICATIONS

● LABORATORY INSTRUMENTATION

● pH MEASUREMENT

● ION–SPECIFIC PROBES

● LEAKAGE CURRENT MEASUREMENT

V+

Guard

INA116

–

V_IN

Over-Voltage

Protection

A₁

50kΩ

R_G

G = 1 +

Guard

60kΩ

25kΩ

A₃

V_O

R_G

Guard

A₂

Ref

V_IN

Over-Voltage

Protection

60kΩ

Guard

V–

Difet^®; Burr-Brown Corporation

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-1242B

Printed in U.S.A. May, 1995

12 3 4 5 6 7...9

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