• FAQ(AD7380): The AD7380(AD738x) a 16-bit resolution ADC throughput rate is at 4MSPS. When resolution boost is enable allowing 18-bit conversion result. With the additional 2-bits, does the AD7380 would still able to maintain the throughput rate at 4MSPS...

    The AD7380 is capable to perform with throughput rates over 4MSPS using the correct SCLK at 80 Mhz frequency. When the normal averaging oversampling and resolution boost are enabled, the throughput rate will slow down as the oversampling ratio increases…

  • FAQ(AD7380): The AD7380(AD738x family) ADC has an on-chip buffered 2.5V reference. Can this internal reference be use to supply external circuitry?

    The buffered 2.5V internal reference of the AD7380 is recommended to use for internal circuitry process. When this on-chip 2.5V reference is use for external circuit, it must be connected to an external buffer amplifier for example the ADA4807. The external…

  • RE: About the AD7380/16bit SDOA data no signal output problem

    Hi Steven,

            It is good that you are now seeing the SDOA.

            Just a clarification, the readback is from what register? Register 0x1, 0x2 and 0x3 are default value at 0. While 0x4 and 0x5 have 0x0800 and 0x07FF respectively.  What are these data, 0x0000…

  • AD7380: FAQs


    The AD7380 has an on chip oversampling, Why is there a need for an oversampling?


    Oversampling has been a known method of processing conversion result to improve ADC performance for SAR ADC. Putting the oversampling process internally…

  • AD7380: FAQ


    The conversion result of the AD738x family generics is clocked-out in the SDOA and SDOB pins. In the typical schematic, these pins have a 100ohm resistor connected going to the digital interface. Can I connect this pin directly without the resistor…

  • AD7380 eval board performance


    I am using the AD7380 Eval board for evaluating the ADC performance.

    It is having two differential input channels. INA and INB. I am giving input to channel B.

    1) Sinusoidal input is taken from Function generator at 200kHz, 3.3Vpp then fed to Balun…

  • RE: 關於AD7380 SPI 讀取都是0x0000

    Hi nandin,


  • AD7380 SPI Settings


    i'm trying to communicate with the EVAL-AD738xFMCZ (standalone).

    Can somebody tell me the correct SPI-Settings to communicate with this board/chip?

    Thanks in advance.

  • AD7380 Analog Input Range

    I'm not following what the allowable ground referenced voltage is for the analog inputs on the AD7380.

    The 7380 specifies an "absolute input voltage" of -0.1 to Vref+0.1.

    I read that as telling me that I if I have a 2.5V reference the analog…

  • Analog Filter used before AD7380 EVM


    In AD7380 EVM user guide one analog filter has been used (Mentioned in the first page of user guide UG-1304)

    1) Kindly share details of the analog filter.

    2) Also the signal characteristics used to get result as given in figure 20 of user guide…