Multi-Rail Power Reference Design for Eliminating EMI Effects in High Performance DAQ Systems
TIDA-01054
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.
See the Important Notice and Disclaimer covering reference designs and other TI resources.
Key Document
- Multi-Rail Power Ref Design for Eliminating EMI Effects in High-Performance DAQs (Rev. A)
(PDF 2791 KB)
29 Jan 2018
- TIDA-01054 Schematic and Block Diagram (Rev. A)
(PDF 1043 KB)
30 Jan 2018
Description
The TIDA-01054 reference design helps eliminate the performance degrading effects of EMI on Data Acquisition (DAQ) systems greater than 16 bits with the help of the LM53635 buck converter. The buck converter enables the designer to place power solutions close to the signal path without the unwanted noise degradation of EMI while saving board space. This design allows for a system SNR performance of 100.13 dB using a 20-bit, 1-MSPS SAR ADC, which almost matches the 100.14 dB SNR performances when using external power sources.
Features
- Power design minimizing DC to DC EMI impact on system performance
- Two 20-bit SAR ADC channels
- Modular front-end reference design for high channel count systems that can be repeated
- Up to +/-4V input signal (8Vpp differential)
See the Important Notice and Disclaimer covering reference designs and other TI resources.
