This subsystem software example creates a two OPA instrumentation amplifier (INA) using an MSPM0 and external resistors. In this configuration, the difference between Vi1 and Vi2 is amplified, and outputs a single-ended signal with high common-mode rejection. The output of the integrated INA can be sampled using an internal ADC channel of the device.
This application requires the two OPAs integrated in the MSPM0, and an ADC for sampling the results
Subblock Functionality | Peripheral Use | Notes |
---|---|---|
OPA | OPA0 | Pins are configured in SysConfig based on what input sources are selected |
OPA | OPA1 | |
ADC | ADC0 | Used to measure the output voltage of the INA |