TIDA-00080

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

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
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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.

TIDU429B.PDF (15604 K)

Reference design overview and verified performance test data

TIDRAO6B.ZIP (1765 K)

Detailed schematic diagram for design layout and components

TIDRAO7B.ZIP (911 K)

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

TIDRAO8B.ZIP (944 K)

Detailed overview of design layout for component placement

TIDRAP0B.ZIP (8328 K)

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

TIDC643B.ZIP (6840 K)

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

TIDRAO9B.ZIP (4482 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC converters (integrated FET)

TPS553405-A, 40-V, wide VIN boost, flyback, & SEPIC converter

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28075C2000™ 32-bit MCU with 120 MHz, FPU, TMU, 512 KB flash, CLA, SDFM

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28075-Q1Automotive C2000™ 32-bit MCU with 120 MHz, FPU, TMU, 512 KB flash, CLA, SDFM

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28076C2000™ 32-bit MCU with 120 MHz, FPU, TMU, 512 KB flash, CLA, CLB, SDFM

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28374DC2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 512 KB flash, EMIF, 12b ADC

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28374SC2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 512 KB flash, EMIF, 12b ADC

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28375DC2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1024 KB flash, EMIF, 12b ADC

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28375SC2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 1024 KB flash, EMIF, 12b ADC

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28375S-Q1Automotive 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

TMS320F28376DC2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 512 KB flash, EMIF, 16b ADC

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28376SC2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 512 KB flash, EMIF, 16b ADC

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28377DC2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1024 KB flash, EMIF, 16b ADC

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28377D-EPC2000™ 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

TMS320F28377D-Q1Automotive 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

TMS320F28377SC2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 1024 KB flash, EMIF, 16b ADC

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28377S-Q1Automotive 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

TMS320F28378DC2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1024 KB flash, CLB, EMIF, 12b ADC

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28378SC2000™ 32-bit MCU with 400 MIPS, 1xCPU, 1xCLA, FPU, TMU, 1024 KB flash, CLB, EMIF, 12b ADC

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28379DC2000™ 32-bit MCU with 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1024 KB flash, CLB, EMIF, 16b ADC

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28379D-Q1Automotive C2000™ 32-bit MCU w/ 800 MIPS, 2xCPU, 2xCLA, FPU, TMU, 1024 KB flash, CLB, EMIF, 16b ADC

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28379SC2000™ 32-bit MCU with 400-MIPS, 1x CPU, 1x CLA, FPU, TMU, 1024-KB flash, CLB, EMIF and 16-

Data sheet: PDF | HTML
Clock generators

CDCE906167-MHz, LVCMOS, programmable 3-PLL clock synthesizer / multiplier / divider

Data sheet: PDF
Isolated ADCs

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

Data sheet: PDF | HTML
Isolated ADCs

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

Data sheet: PDF | HTML
Isolated ADCs

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

Data sheet: PDF | HTML
Isolated ADCs

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

Data sheet: PDF | HTML
Isolated ADCs

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

Data sheet: PDF | HTML
Isolated ADCs

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

Data sheet: PDF | HTML
Isolated amplifiers

AMC13112-V input, precision voltage sensing reinforced isolated amplifier

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

UCC12050500-mW, high-efficiency, 5-kVRMS isolated DC/DC converter

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

LP38798800-mA, 20-V, low-noise, high-PSRR, adjustable low-dropout voltage regulator with enable

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

TLV704150-mA 24-V ultra-low-IQ low-dropout (LDO) voltage regulator

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

TLV760100-mA, 30-V, low-dropout voltage regulator

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

TPS7A30200-mA, low-noise, high-PSRR, negative, adjustable low-dropout voltage regulator with enable

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

DAC856416-bit, quad-channel, ultra-low glitch, Vout DAC with 2.5-V, 2-ppm/C internal reference

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

OPA2111.1nV/rtHz Noise, Low-Power, Precision Operational Amplifier

Data sheet: PDF | HTML
Series voltage references

REF30121.25-V, 50-ppm/°C, 50-µA in 3-pin SOT-23 package series (bandgap) voltage reference

Data sheet: PDF | HTML
Transformer drivers

SN6501Low-noise, 350-mA, 410-kHz transformer driver for isolated power supplies

Data sheet: PDF | HTML

Start development

Software

Firmware

TIDC659 TIDA-00171 Delfino Firmware

Technical documentation

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Type Title Date
* Design guide Isolated Delta-Sigma Modulator Based AC/DC Voltage Reference Design (Rev. B) Nov. 01, 2019
White paper 신뢰할 수 있는 합리적 가격대의 절연 기술 개발과 관련한 고전압 설계 문제의 해결 (Rev. C) PDF | HTML May 16, 2024
White paper 以可靠且經濟實惠的隔離技術解決高電壓設計挑戰 (Rev. C) PDF | HTML Mar. 07, 2024
White paper Addressing High-Volt Design Challenges w/ Reliable and Affordable Isolation Tech (Rev. C) PDF | HTML Sep. 26, 2023

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