• AD7903与EVAL-SDP-CB1Z配合使用时,AD7903工作在什么模式?

    AD7903与EVAL-SDP-CB1Z配合使用时,AD7903工作在什么模式下?

    菊花链模式?CS模式?还是同步模式?

    求解答,谢谢!

  • AD7903 problem.

    Hi all,

    i'm using the AD7903 ADC in the CS Mode, 4 Wire interface without busy indicator.

    the differential input voltage is 3.6[V], and when im trying to read the ADC number, it simply doesnt work. im always getting random numbers that have no…

  • AD7903 Labview Source Code

    I‘m using the AD7903 to measure temperature. I am currently using the AD7093 evaluation software and the AD7903 Evaluation Board to collect some data. However, I want to add the algorithm of temperature in the evaluation software. So I need the AD7903…

  • AD7903输出0x8000

    我用ad7903内部的两个adc同时采集四路信号(IN1+,IN1-;IN2+,IN2-)。连接方式为数据手册中四线式接口且无繁忙指示的连接方式。驱动放大器选用的是ADA4949-1REFADR435输出的5VVDD2.5VVIO5V(数字主为pic18f6620单片机)ADA4949-1的输出也即ad7903的输入均为2.5V±Vac(输入共模电平为2.5V),Vac峰峰值为2V。每次转换结束后第一个adc读出的数总为0x8000,第二个adc读数为0x0000转换完后如果不读…

  • AD7903 Simultaneous Sampling

    Hello,

    I want to use the AD7903 in the way of Simultaneous Sampling. But Im not sure, how connect them with the SPI interface.

    http://www.analog.com/static/imported-files/data_sheets/AD7903.pdf page 25

    Can I make it in this way? First SPI interface…

  • AD7903 calculate LSB

    Hello,

    the question is about the AD7903 http://www.analog.com/static/imported-files/data_sheets/AD7903.pdf

    I have calculate the LSB with

    u_LSB = u_in / 2^n

    The input voltage (full scale) is u_in = +-5V when Ref=5V and resolution of 16 Bit.

    => u_LSB…

  • Offset problem Eval-AD7903

    Good morning !

    My name is Jordan and i am an engineer student.

    I have a question with my evaluation board AD7903. The evaluation board input range is +/-5V. We have an offset of 2,5V next this enter, and then the ADC. When there is no signal the input…

  • AD7903使用问题

    我用atmage128控制ad7903进行数据采样,但每次采到的数据都是0x8000.模拟输入端in-接地,in+接正直流电压。采用3点无判忙cs接法。单步运行程序后发现,每次cnv置高后,SDI端测量为5v,随后cnv置低,SDI变为2.5v,一个时钟下降沿后,SDI变为0,随后SDI数据输出都是0,无论此时in+所接电压值是什么。以前没用过AD,请老师指导。电路图接法就是手册上的典型接法,ref+5V。VDD+2.5V。

  • Drive AD7903 with AD8476

    Hello,

    I want to drive the ADC AD7903 with the ADC Driver AD8476 at a throughput of 1MSPS. Is it a good choise, to take the AD8476, because in the datasheet I found: "Suitable for driving 16-bit converter up to 250 kSPS".

    Best regards

    D…

  • Interfacing AD7903 with Labview or Matlab

    Hello,

    I have assembled a Direct Conversion Receiver (CN0374 in the Design Center CN0374 | circuit note and reference circuit info RF-to-Bits Solution Offers Precise Phase and Magnitude Data to 6 GHz |…) using ADL5380 (Demodulator), ADA4940 Low Noise…