您好，我想请教下AD5421的问题，就是datasheet中提REGout最小输出是3.15mA，最大输出没给出值，目前我们后端负载需要电流比较大，不知怎么去做配置，手册里面也没有写，有懂得帮忙分析下，谢谢啦！

Hi

In (AD5421) TUE = Gain + Offset + output drift over temperature + INL

We can remove gain and offset error as per datasheet.

So after doing this TUE = output drift over temperature (5ppm FSR /°C ) +INL (0.024% FSR) for A grade (AD5421ACPZ)) and…

Hi，when read the datasheet of AD5421，with its REGout current is 3.15mA， How can We get the 6mA current so that to drive the outside circuit，please give some advises，thanks.

你好 关于DAC的驱动

比如AD5421如何添加的内核中，dts文件怎么编写，你们能提供一些范例吗？

这样编写不能建立节点，请帮忙指点。

I have a question about the Cin pin of AD5421.

I want to input not the HART FSK signal but an original FSK signal to this pin.

The signal is a square wave of ±0.5mA and 600Hz.

Is it possible to use this signal for a communication that uses AD5421?

Hi,

What's the difference between the commands "Write to DAC register" and "Load DAC"?
Do I need to execute both of them, so that the output current is changed?

Youri

Hi,

In my scheme there is an internal power supply 3.3 V. I connected it hrough the decoupling diodes to the tied together terminals IODVDD and DVDD.
While debugging, I found that in the absence of loop powering digital part works, but the analog pa…

Hello, I am working with the AD5421 Eval Board, and I was wondering about how to make sure the AD5421_Init() function provided in the drivers for the device is working properly. More specifically, I want to ensure that the AD5421_SetRegisterValue() function…

Hi,

I want to use the AD5421 for a loop powered 4-20mA application, but I don't want to use the internal regulators to supply the digital section of the device, I just want to make sure that I can leave the DVDD and REGOUT pins open if I already have…

We are using an AD5421 to construct a 4-20 mA loop. The overall architecture we have have includes the use of a microprocessor to communicate with the AD5421 through its SPI port. Originally we were powering the microprocessor with DVDD. However we found…