SLAA705A July   2016  – November 2019 MSP430FR2310 , MSP430FR2311

 

  1.   How to Use the Smart Analog Combo and Transimpedance Amplifier on MSP430FR2311
    1.     Trademarks
    2. 1 Introduction
    3. 2 Configuration of the Integrated Operational Amplifiers
      1. 2.1 Configuration of SAC_OA
        1.       Example 1. Code Example for Configuring SAC_OA
      2. 2.2 Configuration of TIA
        1.       Example 2. Code Example for Configuring TIA
    4. 3 Application Examples
      1. 3.1 SAC_OA as a Transimpedance Amplifier
      2. 3.2 TIA Module as a Transimpedance Amplifier
      3. 3.3 A Current Sensing System Demo
    5. 4 References
  2.   Revision History

How to Use the Smart Analog Combo and Transimpedance Amplifier on MSP430FR2311

In sensing applications, operational amplifiers are often needed to condition (for example, to amplify and filter) the analog sensor output so that it can be properly sampled by the analog-to-digital converter (ADC) on the microcontroller (MCU). This application report provides a guide to set up the integrated operational amplifiers (TIA and SAC_OA) on the MSP430FR2311 MCU. Examples are provided for using the integrated operational amplifiers as a transimpedance amplifier for current sensing applications. Considerations for low-power operation are also discussed.