I've done a bit of reading on the operating principle behind the auto-zero amplifier, but have some questions for our particular needs.

Is it appropriate to assume that in a "quiescent" state, where the amplifier non-inverting input is at ground (V…

Hi all!

I would like to build a thermopile (built in thermistor) circuit which can measure mid infrared spectrum in uV range. I found the following circuit:

http://www.analog.com/en/content/using_thermopile_sensor_in_ir_digital_thermometers/fca.htm…

How much dropout voltage (Vsys - Vout) must I allow for if I the load current greater than the limits in the datasheet electrical table? Looking at a low-voltage op amp like the AD8538 at Vsys = 2.7V, the datasheet lists a Voh with a 10k load,  but what…

My research has pointed me to a link

http://www.analog.com/en/content/using_thermopile_sensor_in_ir_digital_thermometers/fca.html

Unfortuantly that link is now dead but I have found the webarchive version: Using a Thermopile Sensor in IR Digital Thermometers…

Hi!

I try to simulate a high-side current measurement circuit. But when i simulate with different temperatures the current output curve moves (due to offset) much more than I expect.

For the AD8538 the offset voltage drift is about 0.03uV/C. So when…

I have planned to use AD8638 opamp in my project. Am in need of the spice model for the simulations.

Could anyone help me in getting the spice model for AD8538.

Regards,

Chiranjeevi M