Space-grade reference design using integrated digital-output temperature sensor
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This reference design illustrates the fact that several spacecraft projects provide a system health status telemetry that ground personnel monitor in real time. This reference design shows an example using a digital output temperature sensor to acquire temperature data on a sub-system using a radiation hardened MSP430FR5969-SP microcontroller (MCU). This system implements a SPI based slave that responds to a host request for temperature data using a simple register read/write protocol. The reference design includes a TMP461-SP with local temperature sensing and remote diode temperature sensing of an ADC12D1620QML-SP. The board used for this reference design is the TSW12D1620EVM-CVAL. This approach can be used as a starting point for a remote subsystem temperature and health monitor.

  • Local temperature sensing with ±2°C accuracy
  • Remote temperature sensing with ±1.5°C accuracy
  • Ultra-low power radiation hardened MCU
  • I2C temperature sensor output(TMP461-SP)
  • SPI-based slave interface to host

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Design Files

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TI Devices (3)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADC12D1620QML-SP  12-bit, dual 1.6-GSPS or single 3.2-GSPS, RF-sampling ADC with improved ENOB – aerospace  Analog-to-digital converters (ADCs)  Sample & Buy View Design Kits & Evaluation Modules
MSP430FR5969-SP  Radiation Hardened Mixed-Signal Microcontroller  Microcontrollers (MCUs)  Sample & Buy View Design Kits & Evaluation Modules
TMP461-SP  Radiation-hardness-assured (RHA), high-accuracy remote and local temperature sensor  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ADC12D1620QML-SP Download
MSP430FR5969-SP Download
TMP461-SP Download

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Technical documentation

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User guide (1)
Title Type Size (KB) Date
PDF 3714 29 Jul 2019
Design files (6)
Title Type Size (KB) Date
ZIP 838 10 Mar 2019
ZIP 2829 10 Mar 2019
PDF 2628 10 Mar 2019
PDF 76 10 Mar 2019
PDF 79 10 Mar 2019
PDF 165 10 Mar 2019
Related Tools & Software

Hardware development (1)

Name Part Number Tool Type
ADC12D1620QML-SP space-grade wideband receiver evaluation module  TSW12D1620EVM-CVAL  Evaluation board 

Software development (1)

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