The AD5684 does not have a REFOUT, please make sure you are using the AD5684R.
In our circuit the RESETn pin of AD5684 is tied to VLogic so that AD5684 does a proper power-on reset whenever the power supply is applied.
However we suspect that in some rare cases the power-on reset does not happen correctly. Is it possible that somehow…
Accodding to 《AD5684R Quick Start Guide》,I think the pin LDAC tie low permanent is OK.
And I have transmited command 0011 to AD5684,but I still detect any output from channel A.
I hope you can give me an example code of driving AD5684,or tell me…
The search parameter table shows AD5684 having an update rate of 25MSPS. If I take this to mean the output voltage can change with a speed of 25MHz, I don't see how this is possible. 24bit command structure x 20ns min clock cycle x 7us settling time x…
I am using a Microchip PIC18 series to control the AD5683. I will look at the link you provided for the AD5684.
Did you consider to use the AD5684?
12-bit resolution, similar core than the AD5317R but without internal reference,
Otherwise... why you don't use a FET.. it is pretty inexpensive,
Miguel thank you very much for your patience and i'm sorry for being a little pressive, but i still haven't understand what you mean exactly.
If i understand it correctly, you mean to put before the GND of the DAC a small impedance (for example…
我最近购入了贵公司的一款DAC芯片AD5684，我的电路完全按照贵公司提供的《AD5684R Quick Start Guide》这篇技术文档设计的，然后利用STM32F106CBT6这款芯片的SPI模块发出如附件所示的波形送至AD5684，其中，黄色代表的是时钟信号，蓝色代表的是我向输入以为寄存器发的数据 0001 XXX1 1000000000000000 ，粉红色的代表向SYNC引脚输出的信号。按照贵公司的这篇技术文档，那么我的DAC_A通道输出的应该是1.25V，但是我却无法在芯片VO…