SLAA835B May   2018  – August 2018 MSP430FR2353 , MSP430FR2355

 

  1.   Smart Analog Combo Enables Tomorrow's MCU-Based Sensing and Measurement Applications
    1.     Trademarks
    2. 1 Introduction
    3. 2 Smart Analog Combo Applications
      1. 2.1 Smoke Detection
      2. 2.2 Gas or PM2.5 Detector
      3. 2.3 Blood Glucose Meter or Oximeter
      4. 2.4 Current-Loop Transmitter
      5. 2.5 Small Form-factor Pluggable (SFP) optical transceivers
      6. 2.6 Audio Applications
    4. 3 Conclusion
    5. 4 References
  2.   Revision History

1 Introduction

The smart analog combo (SAC) enables a configurable signal-conditioning chain for the sensing and measurement market. Customers can flexibly configure the Op-Amp or PGA of a signal amplifier or 12-bit DAC for internal IPs and external voltage references.

Advantages of the smart analog combo include:

  • Flexibility
    • Configurable input and output paths
    • Adaptable analog conditioning circuit
    • Programmable configuration
    • Consistent user interface on all levels
  • Economics
    • Optimized bill-of-materials cost
    • Few to no external components required
    • Smaller printed circuit board (PCB) outline

The smart analog combo is available on several MSP430™ MCUs in the MSP430FR23xx family. Table 1 defines the different smart analog combo (SAC) configurations. Table 2 lists the configurations available on MSP430 MCUs.

Table 1. Smart Analog Combo Options

SAC Configuration Op Amp PGA 12-Bit DAC
SAC-L1 ✓
SAC-L2 ✓ ✓
SAC-L3 ✓ ✓ ✓

Table 2. Summary of the Smart Analog Combo Configurations and How Many Modules are Integrated on Each Device Family

Device SAC Configuration
MSP430FR231x 1 SAC-L1
MSP430FR235x 4 SAC-L3