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TIDM-02003

Ultrasonic sensing subsystem reference design for gas flow measurement

Design files

TIDM-02003

Design files

Overview

This reference design helps designers develop an ultrasonic gas-metering subsystem using an integrated, ultrasonic sensing solution (USS) module, which provides superior metrology performance with low-power consumption and maximum integration. The design is based on the 64KB MSP430FR6043 microcontroller (MCU) with integrated high-speed, ADC-based signal acquisition and an integrated low-energy accelerator (LEA) to optimize digital signal processing.

Features
  • Best-in-class metrology performance: +/-250ps zero flow drift (ZFD) and 500ps single-shot standard deviation (STD)
  • Low power consumption: <20 uA across 200-kHz to 500-kHz transducers with one set of comprehensive results per second 
  • ±1% flow accuracy up to 12,000 lph with dynamic range of 200:1
  • Three lph minimum detectable flow rate
  • Robust performance against variation of transducer characteristics over temperature
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Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDM-02003
PDF | HTML
TIDUEJ6A.PDF (2197 K)

Reference design overview and verified performance test data

download Schematic — TIDM-02003
TIDRYS5.PDF (670 K)

Detailed schematic diagram for design layout and components

download Bill of materials (BOM) — TIDM-02003
TIDRYS6.PDF (80 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

download Assembly drawing — TIDM-02003
TIDRYS7.PDF (531 K)

Detailed overview of design layout for component placement

download CAD/CAE symbol — TIDM-02003
TIDRYS9.ZIP (2694 K)

Files used for 3D models or 2D drawings of IC components

download Gerber file — TIDM-02003
TIDCF92.ZIP (3555 K)

Design file that contains information on physical board layer of design PCB

download PCB layout — TIDM-02003
TIDRYS8.PDF (3249 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430FR5041 — 16-MHz MCU with 32 KB FRAM, 12-bit high speed 8 MSPS sigma-delta ADC and integrated sensor AFE

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR5043 — 16-MHz MCU with 64 KB FRAM, 12-bit high speed 8-MSPS sigma-delta ADC and integrated sensor AFE

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR50431 — Ultrasonic Sensing MCU with 64KB FRAM, 12KB RAM, I2C Boot Loader for flow meters

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR6041 — 16-MHz MCU with 32-KB FRAM, LCD, 12-bit high speed 8-MSPS sigma-delta ADC and integrated sensor AFE

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR6043 — Ultrasonic Sensing MCU with 64KB FRAM, 12KB RAM, LCD for gas and water metering applications

Data sheet: PDF | HTML
MSP430 microcontrollers

MSP430FR60431 — 16-MHz MCU with 64-KB FRAM, LCD, 12-bit high speed 8-MSPS sigma-delta ADC and integrated sensor AFE

Data sheet: PDF | HTML
Boost converters (integrated switch)

TPS61240 — 2.3-V to 5.5-V input range, 3.5-MHz fixed frequency 450-mA boost converter

Data sheet: PDF | HTML
High-speed op amps (GBW ≥ 50 MHz)

OPA836 — Very Low Power, Rail to Rail out, Negative Rail in, VFB Op Amp

Data sheet: PDF
High-speed op amps (GBW ≥ 50 MHz)

OPA838 — 1-mA, 300-MHz Gain Bandwidth, Voltage-Feedback Op Amp

Data sheet: PDF | HTML
Load switches

TPS22860 — 0.73-Ω, 5-V, ultra-low leakage load switch

Data sheet: PDF | HTML

Start development

Hardware

Evaluation board

EVM430-FR6043 — MSP430FR6043 ultrasonic sensing evaluation module

The EVM430-FR6043 evaluation kit is a development platform that can be used to evaluate the performance of the MSP430FR6043 for ultrasonic sensing applications (e.g. Smart Gas Meters). The MSP430FR6043 MCU is an ultra-low-power MCU that integrates an ultrasonic sensing analog front end (USS) for (...)
User guide: PDF
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Technical documentation

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Type Title Date
* Design guide Ultrasonic Sensing Subsystem Reference Design for Gas Flow (TIDM-02003) (Rev. A) PDF | HTML Jul. 13, 2022
Application note Gas Meter Design Guide Oct. 28, 2020
Application note Oxygen Concentration Sensing PDF | HTML Oct. 14, 2020
Application note High-Resolution Anemometers Oct. 02, 2020
Application note Ultrasonic Surface Sensing Sep. 25, 2020

Related design resources

Software development

DRIVER OR LIBRARY
MSP-ULTRASONIC-DESIGN-CENTER — MSP430 MCUs Ultrasonic Sensing Design Center

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