Constant Current Laser Diode Driver Circuit Using OPA2350 OpAmp

https://www.electronics-lab.com/constant-current-laser-diode-driver-circuit-using-opa2350-opamp/

The voltage-controlled current source circuit can be used to drive a constant current into a signal or pump laser diode. This simple linear driver provides a cleaner drive current into a laser diode than switching PWM drivers. The basic circuit is that of a Howland current pump with a current booster (Q1) on the output […]