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  • TPS7a4700 heating up and automatic shutdown.

    TI Thinks Resolved
    Other Parts Discussed in Thread: TPS7A47 , TIPD168 , TIPD116 Hi, I am using TPS7a4700 in my design to give 5V output. I have followed the data sheet but I cannot figure what is wrong. The IC gets heated up very quickly and goes into thermal shutdown. There…

  • Ultra low power data acquisition circuit for portable and wearable medical applications - skin impedance and pulse rate monitoring

    Other Parts Discussed in Thread: ADS7042 The circuit shown in Figure 1 is an optimum 12-bit data acquisition front end circuit to measure skin impedance for wearable fitness bands. The circuit design and selection of driving amplifier is optimized for…
    • Answered

  • RE: ADSxx54, PGA281 & antialiasing

    Resolved
    Hello Risto, The circuit driving the SAR ADC (differential amplifier + antialiasing filter) must be able to drive the ADC sampling capacitor and settle to the target voltage within the required resolution during the allowed acquisition period. Designing…

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