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DAC1282 直流DC输出问题

Other Parts Discussed in Thread: DAC1282, DAC9881, ADS1282

DAC1282 ,AVDD:5V单电源,VREF: 5V,配置成直流DC输出后,vout电压波形波动很大,这个现象是正常的吗?vout后面是不是要加滤波电路?

加了滤波之后电压值幅度与24位的的寄存器对应的值就小了很多.手册中的DC输出也是这个波形,如果要稳定的电压波形,该怎么处理呢?