ad5260的数字接口和模拟部分是否是隔离状态?能否实现隔离输出?
spi接口处于单片机体系中,而电阻部分处于其他的电压体系中。我在使用中需要这样。
如果ad5260不能实现这样的操作。能不能推荐一下附加的方案?
ad5260的数字接口和模拟部分是否是隔离状态?能否实现隔离输出?
spi接口处于单片机体系中,而电阻部分处于其他的电压体系中。我在使用中需要这样。
如果ad5260不能实现这样的操作。能不能推荐一下附加的方案?
I am struggling trying to think out a solution to design a transimpedance amplifier (TIA) which can convert 100 nA to 10 mA. This is 5 decades. I want to be able to amplify these to 1.5V minimum. (3V max).
I want to do most of the amplification in the…
Hi Hiroshi-san,
"The logic supply voltage should always be less than or equal to VDD" should also apply to AD5260 / AD5262, since there is an internal diode between logic supply pin and Vdd pin. Hope that answers your query.
Cheers,
Iva…
我搭了个数字电位器电路,期望使用Ad5260 数字电位器输出0v到12v的电压,我控制用的MCU的 gpio端口电压是3.3v的,vdd和A端输入电压为12v时不工作,改为5v时工作正常,难道SPI通信端口也要用12v电平?
纠结了好几天,程序硬是不通
头文件
#ifndef _AD5260_H_
#define _AD5260_H_
//M64管脚定义
#define AD5260_CS 5 //PF5
#define AD5260_SDI 3 //PF3
#define AD5260_CLK 4 //PF4
#define AD5260_SDO 6 //PF6
//宏定义
#define CS_L PORTF&=~(1<<AD5260_CS) //置CS为低电平,使能SPI接口…
As datasheet says ad5260 need 8 bit word, ad5262 need 9 bit word. If you use ad5262 with 8 bits it will not execute your command probably. Bit bang 9 bits.
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…
Hi
Please show me how to use daisy chain of AD5262.
In data sheet, the discription is only AD5260 single digi-pot.
I think a procedure for writing is
1. U2(A0=0)
2. U2(A0=1)
3. U1(A0=0)
4. U1(A0=1)
Is this correct ?
Best regards,
wada…
"DigiPots" are simply a low cost CMOS DAC, junction isolated, so none of the I/O pins can go outside
the rails. See:
…Hello.
I'm working on a project that includes dozens of the following devices: AD5260, AD5290, ADG1211, ADG1212, ADG1414.
I understand from their respective datasheets that voltage rails should be powered in a specific order: GND, Vdd/Vss, digital…