The input range is defined by Vref. So, with a 2.5V reference, the input range is +/-2.5V/gain which equals +/-19.5 mV. If you are using an absolute reference, a low-noise reference such as the ADR381/ADR391 should be used.
Thank you for your reply.
I understood that the voltage noise density is flat at higher frequencies.
I'd like to know the noise density of ADR361 and ADR381.
Do you have the chart as same as ADR391's?.
This was answered on another thread, so i copied it and pasted it below.
The AD7794 suggests the use of ADR391 and ADR381 which are 2.5 V micropower low noise voltage reference.
For 3.3V, I suggest you use the ADR4533…
For 3.3V, I suggest you use the ADR4533 which is ultra-low noise but has Is=950uA compared to the ADR391 with Is=120uA.
Yes you can connect…
apologies. I was just putting the result which i got during testing of ad7193 not targeting precision measurements.
i want guidance to achieve accurate result...
I tried with chopping enable mode but unfortunately results are same.
As mentioned on the AD7788 datasheet it can have a unipolar and bipolar ranges. The Ain+ input can be referred to the Ain-. As an example, when using 2.5V on Ain-. The input voltage range is from 2.5V to 5V but when it is in bipolar mode the…
2. 能否贴一下发送40个1的spi波形图（CS CLK MISO MOSI），能否贴一下读其它寄存器错乱的波形图。
I have been using the ADALM1000 to work through the labs in the Engineering Discovery set. While doing the first two Class A amplifier labs I noticed my output is not centered around 2.5 V as per the reference voltage used but rather just under 2.4 V…