Description
® INA 145 INA145 For most current data sheet and other product information, visit www.burr-brown.com Programmable Gain DIFFERENCE AMPLIFIER .
The INA145 is a precision, unity-gain difference amplifier consisting of a precision op amp and onchip precision resistor network.
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
DESCR
Applications
* q CURRENT SHUNT MEASUREMENTS q SENSOR AMPLIFIER q DIFFERENTIAL LINE RECEIVER q BATTERY POWERED SYSTEMS
RG1 V+ 7 R1 40kΩ R2 40kΩ R5 10kΩ (1%) G=1 R3 40kΩ A1 R4 40kΩ RG 5
RG2
* VIN
2
A2 6
VO VO = (VIN
* VIN)(1 + RG2/RG1)
+
* VIN
+
3
INA145 4 V
* 1 Ref 8 V01
In