In order to help his friend prepare for a talk at DEFCON this weekend, [Craig] built an IR photodiode amplifier circuit. The circuit extended the detection range of the hack from a few inches to a few ...

Sponsored by Texas Instruments: Operational amplifiers serve many applications, from measuring current through a shunt to converting a photoconductive photodiode’s output to a voltage. The precision ...

The op amp enables designers to solve a multitude of problems, and its uses are limited only by the imagination Operational amplifiers (op amps) are a staple in modern electronics. Found in everything ...

A while back, [Chris Lu] was studying how analog circuits, specifically op-amps can be used to perform mathematical operations and wondered if they could be persuaded to solve differential equations, ...

Available in three packages, including a mini 2- × 2-mm DFN8, this dual op amp sports ultra-low input offset voltage and current, easing its use in many low-level sensing applications. Given the ...

Calculating the feedback factor for an op amp that is set up for current-to-voltage conversion may be a bit of a mystery to many engineers. By deriving the transfer function for a transimpedance ...