Compact Driver Stage Design for Teensy 4.1

500mA output injected into the power line This is a workspace for: I have a Teensy 4.1 producing a 0–3.3 V, 80 kHz square wave that must be pushed onto a power line as a clean ±3 V logic-level signal.... (Budget: €30 - €250 EUR, Jobs: Analog Electronics, Circuit Design, Electrical Engineering, Electronics, Embedded Systems, Engineering, Signal Processing)