Description
Low Cost, Zero-Drift In-Amp with Filter and Fixed Gain AD8293G80/AD8293G160 .
The AD8293G80/AD8293G160 are small, low cost, precision instrumentation amplifiers that have low noise and rail-to-rail outputs.
Features
* Small package: 8-lead SOT-23 Reduced component count Incorporates gain resistors and filter resistors Low offset voltage: 20 μV maximum Low offset drift: 0.3 μV/°C maximum Low gain drift: 25 ppm/°C maximum High CMR: 140 dB typical Low noise: 0.7 μV p-p from 0.01 Hz to 10 Hz Single-supply operation:
Applications
* Current sensing Strain gauges Laser diode control loops Portable medical instruments Thermocouple amplifiers
0.1µF
7 5
C2
6
+VS LOAD
8
FILT R2
OUT
+IN R1 4kΩ IN-AMP
I
RSHUNT
1
R3 5kΩ ADC OUT
4
ADC C3 +3.3V REF
* IN GND REF
2 3
1.8V DC-DC
www. DataSheet. co. kr
Figure 2. Measuring