Highly Integrated 4 1/2 Digit Low Power Handheld Digital Multimeter (DMM) Platform Reference Design


Design files


The TIDA-00879 TI-Design leverages the features, functions, performance, and state-of-the-art low power and power management capabilities of the MSP430F6736 MCU to demonstrate a highly integrated, low cost, and low power Digital Multimeter platform.  The solution delivers 4.5 digits or 60K display count resolution, firmware-based True RMS and Real Power measurements, integrated LCD controller/driver subsystem, and over 600 hours of battery life with 3xAAA alkaline batteries, at extremely competitive system level costs.

  • Highly integrated system design solution
  • 4 1/2 digit, 60K count resolution
  • Low power design and power management systems
  • Firmware-based true RMS and real power measurements
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

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


Reference design overview and verified performance test data


Detailed schematic diagram for design layout and components


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


Detailed overview of design layout for component placement

TIDRMI8.ZIP (1535 K)

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

TIDCCC8.ZIP (1568 K)

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

TIDRMI7.PDF (2817 K)

PCB layer plot file used for generating PCB design layout


Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430F6736Single-phase metering SoC with 3 Sigma-Delta ADCs, LCD, real-time clock, 128KB Flash, 8KB RAM

Data sheet: PDF | HTML
Analog switches & muxes

TS3A241590.3-Ω on-state resistance, 3.3-V, 2:1 (SPDT), 2-channel analog switch with 1.8-V input logic

Data sheet: PDF | HTML
Analog switches & muxes

TS5A33591-Ω on-state resistance, 5-V, 3:1 (SP3T), 1-channel analog multiplexer

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

TPS627402.2V-5.5V input, ultra-low-power 300mA step-down buck DCDC converter with 360nA Iq

Data sheet: PDF | HTML
Precision op amps (Vos<1mV)

OPA333Micropower, 1.8-V, 17-µA zero-drift CMOS precision operational amplifier

Data sheet: PDF | HTML

Start development


Technical documentation

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Type Title Date
* Design guide Highly Integrated, 4½ Digit, Low Power Handheld DMM Platform Reference Design (Rev. A) Jan. 10, 2017

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