• AD5123 ±6 dB Increment and Decrement Instructions

    Dear All:

    I am very confused AD5123 datasheet Ver.A page 22 "±6 dB Increment and Decrement Instructions" have "± 6 dB" and the actual resistance value conversion formula provide to me? For example:I select AD5123BCPZ10-RL7 (10 kΩ…

  • AD5123 RAB輸入頻率問題

    Dears,

    AD5123設計應用RWB調整op buffer gain,當op輸入訊號頻率在 7.8KHz 時,輸出波形正常.

    當op輸入訊號頻率在 125KHz & 500KHz 時,輸出波形不正常.(量測點B355,B356,B357)

    相同的條件下,將AD5123改用一般電阻,波形正常.(量測點A351,A352,A353)

    請問是什麼原因呢?線路及量測點與波形如下.謝謝.

    線路及量測點:

    A351

    A352

    A353

    B355

    B356

    B357

  • AD5123/AD5143 数字电位计 ±6 dB增量和减量指令问题

    Dear All:

    我想请问一下ADI 有些数字电位计数据手册都会提到"±6 dB增量和减量指令"请问主要是在叙述与规范什么呢?主要是针对我挑选数字电位计整个电阻值调整"±6 dB增量和减量调整" 还是针对每一个LSB还可以在细部调整"±6 dB增量和减量调整"呢?我要如何详细去计算出这"±6 dB增量和减量调整"对于我实际上的电阻值的影响程度约有多少?有没有一定的公式可以提供给我计算呢?

    例如1:我选择AD5123BCPZ10…

  • 关于AD5123IIC通讯问题

    Analog专家:

        我在使用AD5123IIC编程时遇问题如下:

        使用TI公司的TMS320F2808和AD5123IIC通讯,AD5123电源为Vdd=+2.5v  Vss=-2.5V  ADDR接Vdd  此时AD5123的器件地址为0x50.

    但F2808在对AD5123写操作时,写入地址 0x50(0B10100000)后SDA信号在第九个时钟信号拉起,便无法操作。

         但当从器件地址初始化忽略,此时SAR地址实际上是0x3FF。此地址送入后,SDA信号在第九个时钟信号拉底并有正常的ACK回复…

  • RE: AD5293 Update not occurring

    I just tried to find an explanation for the graph in figure 23.

    A pull-up would not have to be permanent if it is a current source with a pmos transistor, because with increasing input voltage the VDS of the transistor would decrease and the current would…

  • AD5143 Linear Gain mode per IC or per channel

    Hello,

    I am using the AD5143 and there are some unclear things in the datasheet.

    1. Is the selection between Linear Gain Mode and Potentiometer Mode applied per channel or per IC? The fact that command 16 "Copy serial register to control register" in…

  • TAGS LIST: Data Converters

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