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  • ADS1283: Thermal PAD does not need to tie to GND, does it?

    Resolved
    Part Number: ADS1283 Normally thermal pad need to be tied to gourd planes for heat dissipation and perfomance. But in the datasheet said that 'Don't electrically connect the thermal pad'. So we just leave the pin float and tied to a thermal plane, which…
    • Resolved

  • RE: ADS1283: Multiplexing (Input MUX)

    Hi John, The wide-band filter offers better stop-band rejection, but I believe both wide-band and SINC filters will have some susceptibility to aliasing. The digital filter's frequency response will repeat (and be mirrored) around the ADC's sampling…

  • ADS1283: Pulse sync timing; phase delay between input signal and recorded samples.

    TI Thinks Resolved
    Part Number: ADS1283 Hi, We are using the ADS1283 in a data acquisition system that is synchronized to a GPS disciplined rubidium oscillator. The ADS1283 is synchronized on the leading edge of the GPS 1 PPS signal using ADC in pulse sync mode. We apply…
    • Answered

  • ADS1282: ADS1283 Sync Issue

    Resolved
    Part Number: ADS1282 Other Parts Discussed in Thread: ADS1283 Hi Chris, We are using the ADS1282 in a single channel wireless seismic data acquisition system that is synchronized to GPS. Each data acquisition box has a GPS receiver and an ADS1282 and…
    • Resolved
    • Answered

  • [FAQ] What are the main differences between the ADS1281, ADS1282, ADS1283, and ADS1284 products?

    Resolved
    Can you help explain the differences between these devices?
    • Resolved
    • Answered

  • ADS1283: power consumption compared with ADS1282

    Resolved
    Part Number: ADS1283 Other Parts Discussed in Thread: ADS1282 , Hello My customer had been used ADS1282 for their product (seismic equipment) over 10 years. The new ADS1283 has same performance as ADS1282 and ADS1283 have high SNR( 130dB), low…
    • Resolved

  • ADS1283: PGA input noise is is much higher than datasheet typical value

    TI Thinks Resolved
    Part Number: ADS1283 Hi, Team My customer DTCC has concern about ADS1283 PGA noise in datasheet. In Table 1, there are RMS noise value with CHOP ENABLE. DTCC measured that there are 1 of 20 samples which has higher than the value in the table. They…

  • RE: Effect of external Sample/Hold, PGA with Delta Sigma ADCs

    Does SYNC Input of ADS1283 can be considered similar to Start Convert Pulse in SAR ADCs and external MCU can generate this periodic pulse, e.g. 50Khz to get sample at every 20 usec (values are example, not suitable for ADS1283).
    • Answered

  • RE: ADC for seismic data acquisition system: Processor to handle the amount of data from multiples ADCs

    Resolved
    Hi Christopher, Yes, I also thought about using a switch circuit (in this case a MUX), but I also don't think it's an elegant solution, besides adding more components for my design, increasing the complexity, timing for switching, etc. ADS1283 sounds…
    • Answered

  • RE: ADS1282-SP: Input bias current and input impedance

    Resolved
    Hi Jeremy, I believe the input bias current specification is measuring a typical absolute input current. However, depending on the input signal amplitude and ambient temperature, the absolute and differential input bias currents may be on the order…

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