AD7194: Voltage bias to thermocouple

Hi, 

May I know what's the bias voltage? Is that 2.5V as well? I think it should be fine as long as it still within the specified input range of the ADC. 

Is this for new design? You may also want to consider using AD7124, it contains most of the building blocks of AD7194 with internal bias voltage but it only operate up to 3.6V supply. We also have reference circuit for this for TC application.

CN0384 Circuit Note | Analog Devices

Thanks,

Jellenie

Hi,

Q: May I know what's the bias voltage?

- Vbias = 2.5V

Q: Is this for new design?

- Yes

The AD7124-8 looks usable. Both IC types have aproximately same drift errors and non-deterministic errors.

Thanks,

Jan

Hi,

Q: May I know what's the bias voltage?

- Vbias = 2.5V

Q: Is this for new design?

- Yes

The AD7124-8 looks usable. Both IC types have aproximately same drift errors and non-deterministic errors.

Thanks,

Jan