Peufeu's Electronic Stuff Unfinished projects since 1912

Some schematics, as they come.

Fast DAC

Fast ADC

I wonder if I should use a differential path...

Controlled current source

For small currents (ie. measuring signal transistors, biasing stuff, etc). Bandwidth should be > 10 MHz.

Controlled current source

High current source, which tries to have low distortion until the slew rate gets too high, at which point the BJTs start to conduct and boost the opamp drive into the MOSFET gate capacitance. So it can be used as a linear current source as a virtual load for output stages, and as a pulse current source for measuring transistors.

Supply voltages are a bit funky because the balanced line receiver can't stand input or output voltages coming close to the rails.

I hope it can do pulses of ~10 A with risetime in the 500 ns range.