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Cost and Space Optimized, Channel Isolated(Reinforced) AC/DC Voltage, Current DAQ Reference Design
(ACTIVE) TIDA-01430
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Key Document
- Cost and Space-Optimized, Channel Isolated AC/DC Voltage, Current DAQ Ref Design (Rev. A)
(PDF 728 KB)
16 Mar 2018
Description
This reference design highlights an architecture that is optimized for size and cost for achieving channel to channel isolation when measuring AC/DC voltage and current signals. Accuracy of ±0.3% is achieved using an ultra low power (<1mW @ 1MSPS) 12-bit ADC and an ARM core MCU. Space savings and component count reduction is achieved using a digital isolator with integrated power converter that isolates channels and ADC and MCU.
Features
- Channel to channel isolation using digital isolator with integrated power converter (ISOW7841)
- AC/DC voltage and current measurement accuracy
- AC Voltage: < ±0.25% for 5V-300V
- AC Current: < ±0.3% for 0.5A-50A
- Ultra low power (<1mW) data acquisition using ADS7043/ADS7044 and TLVx316
- Space savings achieved using REF1930 (integrated REF, REF/2) and ISOW7841 (integrated digital isolator, power converter)
- Low power consumption and simplified multi-SPI interface achieved using MSP432P401R, an ARM® Cortex®-M4F based MCU
View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.
