• 请问我应该如何评估类似AD7693这样的精密SAR ADC的孔径延迟(Aperture Delay)这一参数在器件间的偏斜(Skew)或匹配(Match)指标?

    我在基于类似AD7693这样的精密SAR ADC设计多通道并行采集模块时,需要评估通道间的同步性,进而需要了解ADC芯片的孔径延迟(Aperture Delay)这一参数在同型号器件间的偏斜(Skew)指标,但我目前没在器件的数据手册中查阅到这一指标,只能查阅到Aperture Delay这一参数,如下图:

    请问我应该如何评估器件间的Aperture Delay Match这一特性

  • AD7693 damage

    AD7693 is widely used in our data acquisition system.  Over the years, we have seen damaged AD7693 time to time. Most of the cases, the current draw goes up and the chip gets really hot. Recently, a AD7693 chip still works but spins out garbage data.  Does…

  • AD7693 Linux driver

    Hi there,

    I am wanting to connect a few AD7693 ADCs to a SoC running Linux. There are enough SPI lines for me to connect 5 AD7693 chips.

    Is there a suitable Linux driver for this chip and are there any example dts files for configuring the device tree…

  • RE: EVAL-AD7982-PMDZ, High THD-3 level.

    Hi,

    ADC board was interfaced to Nucleo-stm32H743zi2 , FFT size 32k. Test setup is irrelevant, since both ADC evaluation boards were tested in exactly the same conditions. Simply, replacing one unit for another w/o changing any single wire connection.…

  • RE: Driving PulSAR A/D directly from AD8221 in op-amp

    Hi Damien,

    Thank you for considering Analog Devices for your circuit needs. For your question whether the AD8221 can directly drive the AD7693, the answer is yes. But you need to configure the two devices properly in order for the output of the AD8221…

  • ADG1206 Single Supply

    Dear ADIer

    My customer has a offset drift problem on the Drain Output pin of ADG1206.(Please refer to attached circuit diagram)

    When VDD = 12V, GND = 0V, EPAD = VSS = -3V are supplied on each of ADG1206, Normal operation is confirmed.

    However if VDD…

  • ADC with really "True differential input"

    Hi collegues.

    I need ADC with really differential input and single supply.

    -IN connected to reference point (REF/2)

    +IN connected to input signal (+\- 2.5v)

    I tried AD7684 but DataSheet tells that +IN and -IN MUST be in opposite phase to reference…

  • RE: AD7685 sdo outputs on wrong ref scale

    Hi Tim,

    The AD7687 is available for purchase / sampling on the analog.com website in the MSOP and LFCSP package.  Here is a link:  http://www.analog.com/en/analog-to-digital-converters/ad-converters/ad7687/products/inventory.html

    As well, I noticed it…

  • ad7476.c Linux driver in daisy chain mode

    Hi there,

    Is it possible to use the ad7476.c driver with a daisy chain of ADCs ?

    I notice that the ad7476.c driver supports many different ADCs, we want to use 4 AD7693 ADCs on the same SPI bus ...

    I was wondering if this has been done ? Are there…

  • AD7689 SPI timing chart

    Hi, all.

    I would like to ask about SPI timing chart for AD7689.

    I will use RSC mode and busy indicator.

    <Question>

    First SCLK seems to capture MSB data in the datasheet,figure 38 and figure 43.

    First SCLK should capture busy indicator(My understanding…