Hi

AD7171's  ENOB and  Noise Free bit is calculated by  datasheet p.9 equations. 

These results is over 16bits.

And ENOB is 16bits in specification.

Is there over bits sampling? 

Periodic pulses (128kHz, 60mV peak, 150ns width) are observed at Vin (+).
-Does this affect the conversion result?
-Could you tell me the settling time of AD7171?

Since Analog Input Channel is Unbuffer, an OPAMP buffer is prepared to reducing input impedance…

Hi

I'm incorporating AD7171 on a new board. I've so far assembled two of these with same result:

My problem is that the DOUT/RDY-pin never goes low after reset/power up. This is what I do:

 * Configure pins on the microcontroller (PDRST and…

Hi,

I have a question about AD7171.

Q :  Is the data rate in the range of 125Hz +/- 10%?

According to D/S, 125Hz 「TYP」

Because customer apps is real time temp sensing, they needs variation specs.  

And, the user must ensure that the complete word…

Hi,

I proposed the following circuit to our customer for thermistor input.

     Requirment: cost, simple circuit, about 16bit p-p resolutions.

On the other hand, in Maxim's application note,

The same voltage excitation, but the connection is different…

Hi,

   I bought AD7175-2 Evaluation Board(EVAL-AD717x-2SDZ(Rev-E)) and carried out Noise test with two different configurations as below  and observed Signal variation

ADC ODR - 250 KSPS

My K20 SPI Clock - 6.25 MHZ

ADC Read / data - 10.4 uSec

1.…

Can I simply use the "device_driver" files located here:
https://github.com/analogdevicesinc/no-OS/tree/master/device_drivers/AD7171

With the communication files located here:
https://github.com/analogdevicesinc/arduino/tree/master/Arduino%20Uno…

请教AD7171数据输出速率125Hz可以变小吗？

Hi guys,

I'm now using BF533 to read samples from AD7171(sigma-delta, 16bit, 125Hz output data rate, SPI compatible) through SPI. The serial digital interface of AD7171 consists of two signals: SCLK and DOUT, no /CS. A 24-bit word is placed on the DOUT…