SLDS204B October 2014 – June 2020 PGA300
PRODUCTION DATA.
The P Gain stage is designed with precision, low-drift, low-flicker-noise, chopper-stabilized amplifiers. P Gain is implemented as an instrumentation amplifier as shown in Figure 4. The gain of this stage is adjustable using the P_GAIN[4:0] bits in the P_GAIN_SELECT register to accommodate sense elements with a wide range of signal spans.
The P Gain value should be set based on the maximum bridge output voltage. The maximum bridge voltage is the maximum sum of bridge offset and bridge span across the entire operating temperature range.