INA115

更新时间： 2024-11-22 22:48:07

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BB		仪表放大器
页数	文件大小	规格书
11页	213K
描述
Precision INSTRUMENTATION AMPLIFIER

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中文翻译

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INA115 数据手册

INA115

Precision

INSTRUMENTATION AMPLIFIER

FEATURES

DESCRIPTION

● LOW OFFSET VOLTAGE: 50µV max

The INA115 is a low cost, general purpose instrumen-

tation amplifier offering excellent accuracy. Its versa-

tile three-op amp design and small size make it ideal

for a wide range of applications. Similar to the model

INA114, the INA115 provides additional connections

to the input op amps, A₁and A₂, which improve gain

accuracy in high gains and are useful in forming

switched-gain amplifiers.

● LOW DRIFT: 0.25µV/°C max

● LOW INPUT BIAS CURRENT: 2nA max

● HIGH COMMON-MODE REJECTION:

115dB min

● INPUT OVER-VOLTAGE PROTECTION:

±40V

● WIDE SUPPLY RANGE: ±2.25 TO ±18V

● LOW QUIESCENT CURRENT: 3mA max

● SOL-16 SURFACE-MOUNT PACKAGE

A single external resistor sets any gain from 1 to

10,000. Internal input protection can withstand up to

±40V without damage.

The INA115 is laser trimmed for very low offset

voltage (50µV), drift (0.25µV/˚C) and high common-

mode rejection (115dB at G=1000). It operates with

power supplies as low as ±2.25V, allowing use in

battery operated and single 5V supply systems. Quies-

cent current is 3mA maximum.

APPLICATIONS

● SWITCHED-GAIN AMPLIFIER

● BRIDGE AMPLIFIER

● THERMOCOUPLE AMPLIFIER

● RTD SENSOR AMPLIFIER

● MEDICAL INSTRUMENTATION

● DATA ACQUISITION

The INA115 is available in the SOL-16 surface-mount

package, specified for the –40°C to +85°C tempera-

ture range.

V_O1

V+

–

V_IN

INA115

Over-Voltage

Protection

Feedback

A₁

25kΩ

A₃

V_O

R_G

50kΩ

R_G

G = 1 +

A₂

Ref

V_IN

Over-Voltage

Protection

25kΩ

V_O2

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-1169B

Printed in U.S.A. October, 1993

12 3 4 5 6 7...11

中文翻译

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