• RE: AD7985 Data Registers

    Hi Brandon,

    By reference materials, do you mean example code for a microcontroller?

    The closest thing to that that we have is the AD7980 No-OS driver linked above, but that uses the 4-Wire without Busy mode, not the 3-wire option. It may not be exactly…

  • AD7985 datasheet question

    I have question regarding AD7985 3-wire interface mode without busy indicator (Figure 27 in datasheet). In page 18 of the datasheet, the number of bits that can be read during conversion is calculated by multiplying tDATA with fSCK. Then Figure 27 shows…

  • Questions for your AD7985

    Dear Sir/Madam,

    I am just studing to use your AD7985 with your datasheet page.19, Fig 27 CSB Mode, 3-Wire Without Busy Indicator Serial Interface Timing (SDI High) condition. Also I will be worked AD7985 with fix the procedure of conversion and acquition…

  • AD7985芯片SDO管脚中断输出问题





  • 关于AD7985芯片进行数据读取的问题


  • AD7985时钟偶尔出现异常,导致数据输出异常的问题



    • SDO   AD输出
    • SCK      22.5Mhz
    • CNV     转换
    • SDI -----------2.5v常高
    • TURBO--------GND 常低电平



  • RE: A/D USB interface for Si amplified photodiode

    Hi, Vincent.

    The 16-bit AD7985 was used together with a flexible sensor signal conditioning block which can be used for accurate smallsignal measurements in this reference circuit. The AD7985 has an input voltage range of 0-Vref (Vref can be externally…

  • AD8253 Single input circuit?

    This is the reference circuit about the AD8253 and AD7985.

    There are differencial input ports in the AD8253 and I want to use this device for single input.

    Then how can I connet the other input pin?

  • Best ADC for High voltage inputs?

    I’m trying to decide which ADC to use for a high voltage front end.  Here are the requirements for the ADC:

    Fixed input range +/- 50V

    16 bit resolution

    10 Meg input impedance

    1 MHz Bandwidth

    2 or 3 MSPS or greater

    Serial or SPI output

    I’ve been…

  • RE: ADC evaluation board choose

    Hi Yake,

    I have attached a list of some of the ADCs that fit your criteria of 2MSPS sampling rate or higher at resolution of 12bits or more.

    You may also wanted to check the ADI website and do a parametric search (http://www.analog.com/ps/psthandler…