Ultrasonic Water Flow Meter Design using Time to Digital Conversion
TIDM-ULTRASONIC-FLOW-TDC
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Description

The TIDM-ULTRASONIC-FLOW-TDC is a reference design for an ultrasonic flow meter (water, gas or heat meter) with LCD built using a Time-to-Digital converter and an ultra-low power MCU. Solution includes optimized leakage detection, low power consumption, and a small form factor that are important requirements for water, heat and gas meter applications. This design also includes a high efficiency DC-DC converter for system power.

Features
  • A small form factor, ultra-low power design
  • Ultrasonic Time of Flight measurement - No moving parts
  • Highly efficient DC-DC converter for system power
  • Super-cap design for power supply of RF module
  • Platform Design with sockets for RF, power module and MCU I/Os
  • PC GUI and firmware ready

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Design Files

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TI Devices (6)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
MSP430FR6989  MSP430FR6989 16 MHz ULP Microcontroller - 128 KB FRAM, 2KB SRAM, 83 IO, ADC12, LCD, AES, Scan IF  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
TDC1000  Ultrasonic sensing analog front end for level and concentration sensing  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
TDC7200  Time-to-digital converter for time-of-flight (ToF) applications for LIDAR and ultrasonic  Specialty sensors  Sample & Buy View Design Kits & Evaluation Modules
TPD8E003  8-Channel ESD Array For Portable Space-Saving Applications  Circuit protection  Sample & Buy Not Available
TPS61291  Low Iq Boost Converter with 15nA Bypass Operation  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
TPS62740  2.2V-5.5V input, ultra-low-power 300mA step-down buck DCDC converter with 360nA Iq  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
MSP430FR6989 Download Download
Download -
TDC1000 Download Download
TDC7200 Download Download
TPD8E003 Download -
TPS61291 Download Download
TPS62740 Download Download

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Technical Documents

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User guides (1)
Title Type Size (KB) Date
PDF 5731 20 Jul 2015
Design files (5)
Title Type Size (KB) Date
ZIP 553 13 May 2015
ZIP 1126 13 May 2015
PDF 3144 13 May 2015
PDF 86 13 May 2015
PDF 1040 13 May 2015
Related Tools & Software

Software (1)



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