TIDA-00080 Reference Design

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Isolated delta-sigma modulator based AC/DC voltage and current measurement module reference design

Design files

TIDA-00080

Design files

Overview

This isolated shunt based current measurement unit enables high accuracy current measurement without the use of Current Transformers (CT). The isolation is achieved through the use of AMC1304 that incorporates both high voltage isolation as well as the Delta-Sigma Modulator. This solution eliminates the need for the CT which customers value due to the decrease in board size, reduced product weight, mitigation of cross talk and EMI in the system, and potentially increases product life through lower mechanical issues by replacing the CT with a shunt.

Features

• High accuracy current / voltage measurement capability
• 0.25% from 0.5A to 10A
• 1% from 10A to 200A
• Eliminate the CT for current sensing
• Mitigates cross talk and EMI in system
• Extend product field life (reduce mechanical issues) and shrinks board size

Industrial

• Application Processor Module
• Central inverter
• Motor protection relay & contactors
• Narrow input range
• Narrow input range
• Narrow input range
• Power Conditioning
• Power quality analyzer
• Programmable DC power supply

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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.

download Design guide — TIDA-00080 TIDU429B.PDF (15605 KB)

Reference design overview and verified performance test data

download Assembly drawing — TIDA-00080 TIDRAO8B.ZIP (944 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — TIDA-00080 TIDRAO7B.ZIP (912 KB)

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

download CAD/CAE symbol — TIDA-00080 TIDRAP0B.ZIP (8328 KB)

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

download Gerber file — TIDA-00080 TIDC643B.ZIP (6841 KB)

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

download PCB layout — TIDA-00080 TIDRAO9B.ZIP (4482 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — TIDA-00080 TIDRAO6B.ZIP (1765 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

C2000 real-time microcontrollers

TMS320F28075 — C2000™ 32-bit MCU with 120 MHz, FPU, TMU, 512 KB flash, CLA, SDFM

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28076 — C2000™ 32-bit MCU with 120 MHz, FPU, TMU, 512 KB flash, CLA, CLB, SDFM

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28374S — C2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 512 KB flash, EMIF, 12b ADC

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28375S-Q1 — Automotive C2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 1024 KB flash, EMIF, 12b ADC

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

OPA211 — 1.1nV/rtHz Noise, Low-Power, Precision Operational Amplifier

Data sheet: PDF | HTML Clock generators

CDCE906 — 167-MHz, LVCMOS, programmable 3-PLL clock synthesizer / multiplier / divider

Data sheet: PDF C2000 real-time microcontrollers

TMS320F28376S — C2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 512 KB flash, EMIF, 16b ADC

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28379D-Q1 — Automotive C2000™ 32-bit MCU w/ 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1024 KB flash, CLB, EMIF, 16b ADC

Data sheet: PDF | HTML Isolated ADCs

AMC1304M05 — ±50-mV input, precision current sensing reinforced isolated modulator with LDO

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28378S — C2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 1024 KB flash, CLB, EMIF, 12b ADC

Data sheet: PDF | HTML Linear & low-dropout (LDO) regulators

LP38798 — 800-mA, 20-V, low-noise, high-PSRR, adjustable low-dropout voltage regulator with enable

Data sheet: PDF | HTML Isolated ADCs

AMC1304M25 — ±250-mV input, precision current sensing reinforced isolated modulator with LDO

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28075-Q1 — Automotive C2000™ 32-bit MCU with 120 MHz, FPU, TMU, 512 KB flash, CLA, SDFM

Data sheet: PDF | HTML Isolated power modules (integrated transformer)

UCC12050 — 500-mW, high-efficiency, 5-kVRMS isolated DC/DC converter

Data sheet: PDF | HTML Isolated ADCs

AMC1305M25 — ±250-mV input, precision current sensing reinforced isolated modulator

Data sheet: PDF | HTML Isolated ADCs

AMC1305M05 — ±50-mV input, precision current sensing reinforced isolated modulator

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28377D-EP — C2000™ Enhanced Product 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1 MB flash, EMIF, 16b ADC

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28374D — C2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 512 KB flash, EMIF, 12b ADC

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28376D — C2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 512 KB flash, EMIF, 16b ADC

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28378D — C2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1024 KB flash, CLB, EMIF, 12b ADC

Data sheet: PDF | HTML Transformer drivers

SN6501 — Low-noise, 350-mA, 410-kHz transformer driver for isolated power supplies

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28377D-Q1 — Automotive C2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1024 KB flash, EMIF, 16b ADC

Data sheet: PDF | HTML AC/DC & DC/DC converters (integrated FET)

TPS55340 — 5-A, 40-V, wide VIN boost, flyback, & SEPIC converter

Data sheet: PDF | HTML Linear & low-dropout (LDO) regulators

TPS7A30 — 200-mA, low-noise, high-PSRR, negative, adjustable low-dropout voltage regulator with enable

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28375S — C2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 1024 KB flash, EMIF, 12b ADC

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28377S — C2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 1024 KB flash, EMIF, 16b ADC

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28379S — C2000™ 32-bit MCU with 400-MIPS, 1x CPU, 1x CLA, FPU, TMU, 1024-KB flash, CLB, EMIF and 16-

Data sheet: PDF | HTML Linear & low-dropout (LDO) regulators

TLV704 — 150-mA 24-V ultra-low-IQ low-dropout (LDO) voltage regulator

Data sheet: PDF | HTML Isolated ADCs

AMC1306M25 — ±250-mV input, precision current sensing reinforced isolated modulator

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28377S-Q1 — Automotive C2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 1024 KB flash, EMIF, 16b ADC

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28375D — C2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1024 KB flash, EMIF, 12b ADC

Data sheet: PDF | HTML Isolated amplifiers

AMC1311 — 2-V input, precision voltage sensing reinforced isolated amplifier

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28377D — C2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1024 KB flash, EMIF, 16b ADC

Data sheet: PDF | HTML C2000 real-time microcontrollers

TMS320F28379D — C2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1024 KB flash, CLB, EMIF, 16b ADC

Data sheet: PDF | HTML Precision DACs (≤10 MSPS)

DAC8564 — 16-bit, quad-channel, ultra-low glitch, Vout DAC with 2.5-V, 2-ppm/C internal reference

Data sheet: PDF Isolated ADCs

AMC1336 — ±1-V input, precision voltage sensing reinforced isolated modulator

Data sheet: PDF | HTML Linear & low-dropout (LDO) regulators

TLV760 — 100-mA, 30-V, low-dropout voltage regulator

Data sheet: PDF | HTML

Start development

Software

Firmware

TIDC659 — TIDA-00171 Delfino Firmware

Supported products & hardware

Supported products & hardware

Hardware development

Reference design

TIDA-00080 — Isolated delta-sigma modulator based AC/DC voltage and current measurement module reference design TIDA-00171 — Isolated Current Shunt and Voltage Measurement Reference Design for Motor Drives Download options

TIDC659 — TIDA-00171 Delfino Firmware

close Latest version Version: 01.00.00.00 Release date: Oct 1, 2014 open-in-new

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TIDA-00171 Delfino Firmware (zip)  — 10711 K

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Hardware development

Reference design

TIDA-00080 — Isolated delta-sigma modulator based AC/DC voltage and current measurement module reference design TIDA-00171 — Isolated Current Shunt and Voltage Measurement Reference Design for Motor Drives

Release Information

The design resource accessed as www.ti.com/lit/zip/tidc659 or www.ti.com/lit/xx/tidc659/tidc659.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDC659. Please update any bookmarks accordingly.

Technical documentation

star = Top documentation selected by TI No results found. Please clear your search and try again. View all 2

Type	Title	Date
*	Design guide	Isolated Delta-Sigma Modulator Based AC/DC Voltage Reference Design (Rev. B)	Nov 1, 2019
White paper	Addressing High-Volt Design Challenges w/ Reliable and Affordable Isolation Tech (Rev. C)	PDF | HTML	Sep 26, 2023

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