Passive NFC Temperature Patch Reference Design
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TIDA-00721 is a complete reference design for accurate temperature measurements using a passive NFC tag in a flexible patch form factor. The system offers temperature readings from tag to a NFC receiver such as a NFC enabled smartphone. The high accuracy temperature sensor (LMT70) is interfaced with an ADC (ADS1113) and the temperature data is sent to the reader with the NFC transponder (RF430CL330H).

  • Human skin temperature sensing patch design
  • Temperature data transfer with NFC interface
  • Integrated PCB antenna
  • Probe contacts for programming or troubleshooting

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Schematic/Block Diagram

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TI Devices (4)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
ADS1113  16-Bit 860SPS 1-Ch Delta-Sigma ADC With Oscillator, Voltage Reference, and I2C  Analog-to-digital converters (ADCs)  Sample & Buy Not Available
LMT70  ±0.1°C ultra-small, high-precision, low-power CMOS analog temperature sensor  Temperature sensors  Sample & Buy View Design Kits & Evaluation Modules
MSP430G2403  MSP430G2x33, MSP430G2x03 Mixed Signal Microcontroller  Microcontrollers (MCU)  Sample & Buy Not Available
RF430CL330H  Dynamic Dual Interface NFC Transponder  Wireless connectivity  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
ADS1113 Download Download
Download Download
LMT70 Download -
MSP430G2403 Download
Download Download
Download Download
Download Download
RF430CL330H Download Download
Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 338 10 May 2016
Design files (6)
Title Type Size (KB) Date
PDF 202 07 Jun 2016
ZIP 242 07 Jun 2016
ZIP 396 07 Jun 2016
ZIP 241 07 Jun 2016
PDF 196 07 Jun 2016
ZIP 48 07 Jun 2016

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