• Analog Input of AD7940.

    Hi everyone,

    I have a query regarding the analog input interface of AD7940.

    I want to interface of RMS to DC Converter, AD8362 to input of AD7940. Now Input circuit

    of AD7940 shows a 25 ohm resistor to charge a 25pF capacitor. In that case, the cu…

  • Question about AD7680 and AD7940 Power Dissipation

    Hi,

    I have two questions about AD7680 and AD7940 power dissipation. Please take care of this case.

    Question1

    What is the power dissipation in the standby condition?

    (Standby: No input, VDD=3V, /CS=”H”, SCLK=don’t care)

     

    Question2

    What is power…

  • RE: 数据采集卡设计

        本方案选用ADI的DAC芯片AD7940，AD7940 是一款14位、快速、低功耗、逐次逼近型ADC，采用2.50 V至5.5 V 单电源供电，最高吞吐速率可达100 KSPS。该器件内置一个低噪声、宽带宽采样保持放大器，可处理7 MHz以上的输入频率。

        通过将波形的数据存储于FPGA内部ROM中，然后调用ROM中的数据，输出需要的波形。AD7940后面采用继电器和运放电路，产生电压、电流可变换输出。

        数字量信号输入首先经过光耦隔离后，经过比较器后输入至FPGA直接采集。

        光耦需选择高速…

  • TAGS LIST: Precision DACs

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  • TAGS LIST: Precision ADCs

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  • TAGS LIST: Data Converters

    AD693
    AD5410
    AD5412
    AD5420
    AD5422
    AD5735
    AD5755
    AD5755-1
    AD5737
    AD5757
    AD5421
    AD421
    AD5758
    AD7569
    AD7669
    AD7868
    AD7869
    AD5593R
    AD5592R
    AD5940
    AD5941
    AD7293
    AD7294-2
    AD7292
    AD5590
    AD7294
    L…

  • AD9208 on ZCU102, linux problems

    Hi there,

    We are trying to get linux up running on zcu102 rev1.1 with an AD9208-3000 evaluation board, however the ad9208 is not recognized on linux with the iio_info command and we get some errors at boot.

    Just to be sure that we did everything correctly…