Im montage more 1 pcb with AD8226. IN+, IN-, REF connect to gnd. Output must by 0mV, but real 720mV. This Ic AD8226 is fake?
The AD8226 has very high impedance input stage but for floating voltage source like a Thermocouple, the AD8226 IN+ and IN- inputs must have a bias current path (i guess 10megaOhm or 1megaOhm) as per the AD8226 datasheet. In CN0251 a bias current…
I am sending same signal (both GND) to the inputs of my AD8226. The REF pin is tied to GND as well. Shouldn't I expect to see an output very close to GND ?
I would like to know if the AD8226 is suitable for the following application:
- Accelerometer sensor in a Wheatstone Bridge configuration (Four Varying elements), Excited with 3 Volts. Common mode voltage: 1.5 Volts. Sensitivity: 3 uV/g. Full Scale…
Hello, I'm trying to design a circuit as in the bellow figure using the InAmp AD8226, a RC filter and SAR ADC. The signal is a sine wave with a frequency of 1kHz and 3Vp. Reading the page 24 of AD8226 datasheet's , it has a few options for ADC dri…
I would use an Instrumentation Amp with a stable 1V on one side. Look at AD8421, AD8428, AD8229, or AD8226.
I have a gain problem when i am testing my ad8226.
The test circuit is shown below in picture.
When Vin increases, the gain decrease from 330 to 315。
However, I test the same circuit with ad623, the gain is stable. The only difference is that I remove…