Datasheet > INA145

INA145

更新时间： 2024-11-22 02:58:39

品牌	Logo	应用领域
德州仪器 - TI		放大器
页数	文件大小	规格书
15页	319K
描述
Programmable Gain DIFFERENCE AMPLIFIER

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中文翻译

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数据手册

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INA145 数据手册

INA145

For most current data sheet and other product

information, visit www.burr-brown.com

Programmable Gain

DIFFERENCE AMPLIFIER

FEATURES

DESCRIPTION

● DIFFERENTIAL GAIN = 1V/V TO 1000V/V:

The INA145 is a precision, unity-gain difference

amplifier consisting of a precision op amp and on-

chip precision resistor network. Two external resistors

set the gain from 1V/V to 1000V/V. The input com-

mon-mode voltage range extends beyond the positive

and negative rails.

Set with External Resistors

● LOW QUIESCENT CURRENT: 570µA

● WIDE SUPPLY RANGE:

Single Supply: 4.5V to 36V

Dual Supplies: ±2.25V to ±18V

On-chip precision resistors are laser-trimmed to achieve

accurate gain and high common-mode rejection. Ex-

cellent TCR tracking of these resistors assures contin-

ued high precision over temperature.

● HIGH COMMON-MODE VOLTAGE:

+8V at V_S= +5V

±28V at V_S= ±15V

● LOW GAIN ERROR: 0.01%

● HIGH CMR: 86dB

The INA145 is available in the SO-8 surface-mount

package specified for the extended industrial tempera-

ture range, –40°C to +85°C.

● SO-8 PACKAGE

APPLICATIONS

● CURRENT SHUNT MEASUREMENTS

● SENSOR AMPLIFIER

●

DIFFERENTIAL LINE RECEIVER

● BATTERY POWERED SYSTEMS

R_G1

R_G2

V+

R_G

R₁

R₂

40kΩ

V_IN^–

R₅

10kΩ

(1%)

V_O

G = 1

R₃

_O= (V_I⁺_N– V_I^–_N)(1 + R_G2/R_G1

)

R₄

40kΩ

V_IN⁺

INA145

V–

Ref

V₀₁

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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132

PDS-1567B

Printed in U.S.A. March, 2000

INA145

SBOS120

12 3 4 5 6 7...15

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