Hello, TI Community!
I am currently working on an ECG circuit. I am having some difficulty building the band pass filter. The op-amp keeps saturating, so I am wondering why this is happening. I am enclosing pictures of the filter design from the TI Design Program. I am using two OPA2227, I also was using an OPA4227, but I thought the saturation issue came from attempting to use one IC, so I went with two separate IC's, but the issue persists. I need to use an opamp that comes in a DIP package to test on a breadboard, so that's why I went with this option. Any better op amps that come in an DIP package would also be considered.
Any advice you can provide would be greatly appreciated.
Low Pass Filter - fc = 40.6Hz
HPF - fc = 0.49