SLAAEI7 December   2023 MSPM0G3507

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Technology
    1. 2.1 Analog Peripherals in the MSPM0
    2. 2.2 Instrumentation Amplifier - INA350
    3. 2.3 Voltage Reference - REF2925
    4. 2.4 Low-Dropout Regulator - TPS7B6933-Q1
  6. 3Signal Chain
  7. 4Results
    1. 4.1 Influence of the OPA Chopping Mode
    2. 4.2 Oversampling and Hardware Averaging
    3. 4.3 Effect of Sampling Rate on Effective Resolution
    4. 4.4 Influence of the Amplification Factor
  8. 5Summary
  9. 6References

5 Summary

The MSPM0 presents a flexible and affordable design for many high volume sensor transmitters. The device offers features desired in MCU designs like rich analog resources, small packages, and operation over the whole industrial temperature range. High-gain front ends require minimal external components like the high-gain instrumentation amplifier INA350 and the low power voltage reference REF2925. This article highlights performance versus cost considerations and implementations. The results detailed in this section aim at allowing a designer to choose and adjust system configuration parameters properly and quickly for achieving required performance.