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TLV2548: Query regarding the Data reading time

Alan Varghese
Prodigy 130 points
Part Number: TLV2548

Hi TI Team,

We are using TLV2548CDWR to read analog voltage and current from different channels. We have some queries as part of that which is listed below.

1. In the datasheet it is mentioned like the total conversion time is 3.5us( typical) if using the internal oscillator. May i know whether its the conversion time for the single channel or for the entire 8 channels?

2.Attaching the XL sheet consiting of our calculation  for your reference. Kindly check it and Correct me if i am wrong

3. Also the Sampling rate is 200KSPS. And Sampling time is shown like 600ns. So total time taken will be conversion time+ sampling time, right?

ADC Details.xlsx

  • 0
    TI__Guru**** 173636 points

    Hi Alan,

    As I mentioned to Shibin, the conversion time is per channel.  One channel @ 200kSPS, 2 channels @ 100kSPS/CH, 8CH @ 25kSPS/CH.  Spreadsheet looks OK.  The sample rate (200kSPS) includes the 600nS acquisition time and the 3.5uS conversion time.