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?.
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.
Presently only one (channel 1) is enabled & input connected to channel 1& channel one is configured as pseudo differential. (IP2-IP7 or AN2-AN7 ) not in used.
Reference o/p i am getting from from ADR381=2.4995V.
Also ADC counts…
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 which is ultra-low noise but has Is=950uA compared to the ADR391 with Is=120uA.
Yes you can connect…
This was answered on another thread, so i copied it and pasted it below.
For 3.3V, I suggest you use the ADR4533…
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。
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…
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…