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INA145 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 INA145
部品説明 Programmable Gain DIFFERENCE AMPLIFIER
メーカ Burr-Brown Corporation
ロゴ Burr-Brown Corporation ロゴ 



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INA145 Datasheet, INA145 PDF,ピン配置, 機能
®
INA145
INA145
For most current data sheet and other product
information, visit www.burr-brown.com
Programmable Gain
DIFFERENCE AMPLIFIER
FEATURES
q DIFFERENTIAL GAIN = 1V/V TO 1000V/V:
Set with External Resistors
q LOW QUIESCENT CURRENT: 570µA
q WIDE SUPPLY RANGE:
Single Supply: 4.5V to 36V
Dual Supplies: ±2.25V to ±18V
q HIGH COMMON-MODE VOLTAGE:
+8V at VS = +5V
±28V at VS = ±15V
q LOW GAIN ERROR: 0.01%
q HIGH CMR: 86dB
q SO-8 PACKAGE
APPLICATIONS
q CURRENT SHUNT MEASUREMENTS
q SENSOR AMPLIFIER
q DIFFERENTIAL LINE RECEIVER
q BATTERY POWERED SYSTEMS
DESCRIPTION
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.
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.
The INA145 is available in the SO-8 surface-mount
package specified for the extended industrial tempera-
ture range, –40°C to +85°C.
VIN– 2
VIN+ 3
V+
R1
40k
7
R2
40k
G=1
R3
40k
A1
R4
40k
4
V–
RG1
RG2
RG 5
R5
10k
(1%)
A2 6 VO
VO = (VI+N – VI–N)(1 + RG2/RG1)
INA145
18
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
©1999 Burr-Brown Corporation
PDS-11567B
INA145Printed in U.S.A. March, 2000
®

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