This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
DAC8820+OPA2211，参考电压是用REF3220给的2.048V，电路实现的功能是DAC能够产生±2V的输出，请帮忙查看一下电路是否有错误的地方。
DAC能够产生±2V的输出, 负电压是有问题, 除非你用运放变换出负电压.
您的意思不是很明白，可否说的具体一些。
下图是手册给出的双极性输出电路，您说的负电压的问题是出在哪里
