I was thinking along the lines of an LMH7623 only because I've used it before... BUT!! Its a video amp so might not be suitable
The diode ( D1) is also a bit screwballed... So I need suggestions for that as well..
The system has an optocoupler and chopper wheel, the wheel has about 28 cuts and can spin around 10 times a second, so reletively slow frequency..
![annemometer part.jpg annemometer part.jpg](https://www.electro-tech-online.com/data/attachments/94/94820-f4850a6c79a3414676ade67dc767fb8a.jpg)
As you see U2 is a bit sad....
The diode ( D1) is also a bit screwballed... So I need suggestions for that as well..
The system has an optocoupler and chopper wheel, the wheel has about 28 cuts and can spin around 10 times a second, so reletively slow frequency..
![annemometer part.jpg annemometer part.jpg](https://www.electro-tech-online.com/data/attachments/94/94820-f4850a6c79a3414676ade67dc767fb8a.jpg)
As you see U2 is a bit sad....