Datasheet

FS98O22
Rev. 1.6 118/146
12.2. Differential Amplifier
Measurement of differential signal is often used in bridge sensor applications. As shown in the
differential amplifier below, VS Pin is used as power input for bridge sensor, ADC reference voltage is
also from VS Pin after voltage division. When there is a small change in VS, ADC output does not
change. Connecting AIN2 to ADC negative input can adjust the zero point of bridge sensor. When
starting chopper mode, the amplification should be less than 100 times.
Please see Figure 12-2 for example.
Figure 12-2 differential amplifier example
FORTUNE'
Properties
For Reference Only