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  • ADS5271: Reference differential voltage

    Part Number: ADS5271 Tool/software: Dear all, We use ADS5271 ADC on one of our designs and, despite we used recommended schematic in the datasheet (2 x 2 Ohms + capacitors and Iset=56.2kOhms), we have measured on several boards (maybe with ADCs from…
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  • ADS5271: Vcm output abnormal

    Resolved
    Part Number: ADS5271 Tool/software: I made 20 boards using ADS5271. The Vcm outputs of 16 boards are around 1.45V, otherwise, the Vcm of the other 4 boards are between 0.36-0.6V. Among the 4 boards, 2 boards go back to 1.45V when quickly repowers the…
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    • Answered

  • ADS5271 Serial interface configuration

    Resolved
    Other Parts Discussed in Thread: ADS5271 , ADS5270 Hello, I am currently working in a project to interface TI ADS5271 ADCs from a Xilinx Virtex 5 FPGA. For the moment I am implementing the functionality for configuring the ADC internal registers. …
    • Resolved

  • ADS5271 oscillation in absence of input

    Other Parts Discussed in Thread: ADS5271 , THS4151 Hello, Im experiencing some problems with an ADC setup based on TI ADS5271, and Im hoping you can help me to solve it. The differential inputs on the ADCs are accommodated using an analog stage which…

  • RE: OPA2625: How to improve SNR, HD2 and HD3 of an 18-bit SAR ADC when OPA2625 is being used to drive the differential inputs of ADC?

    Couple of quick things Akash, 1. Where is your DC bias current path for the V+ inputs to the op amps? 2. This differential I/O op amp circuit sometimes has a common mode oscillation - probably not here, but we did see that in the OPA838 decomp device…

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