20-bit Isolated Data Acquisition Reference Design Optimizing Jitter for Max SNR and Sample Rate
Description
The TIDA-01035 is a 20-bit: 1 MSPS isolated analog input data acquisition reference design demonstrating how to resolve and optimize performance challenges typical of digitally isolated data acquisition systems.Significantly improves high frequency AC signal chain performance (SNR and THD) by effectively mitigating ADC sample clock jitter across isolation boundaryMaximizes sample rate by eliminating/minimizing propagation delay introduced by a digital isolatorProvides option to evaluate performance with and without jitter mitigation technique with jumperIncludes detailed timing analysis detailing the isolator’s additive jitter impact on data throughput
Features
- Isolated 20-bit: 1-MSPS: single channel differential Input Data Acquisition (DAQ) systemJitter mitigation technique realizes more than 18-dB system-level SNR improvement for high frequency input signals (100 kHz Fin: 1 MSPS)Reduced logic (on isolated ADC side) eliminates need for higher power and complex PLL solutionsAchieves 1-MSPS sampling rate while preserving low SPI CLK rates with the ADS8900B ADC’s innovative multiSPI™ and ADC-master or Source-Synchronous mode digital interfacesIncludes theory: calculations: component selection: PCB design and measurement results
Applications
- Digital multimeter (DMM)
- Full authority digital engine control (FADEC)
- Lab & field Instrumentation
- Spectrum analyzer
- Data acquisition (DAQ)
- Power analyzer
- Programmable DC power supply
- Parametric measurement unit (PMU)
- Flat panel display (FPD) shorting bar pattern generator
- Ultrasound smart probe
- Ultrasound scanner
Product Categories
- Data converters