Octal eight-bit DAC for 80 cents

Started by Phil Hobbs in sci.electronics.design5 years ago 10 replies

The Rohm BH226F. If it's any good, it could replace a lot of PWMs. https://www.digikey.com/short/qptnn7 Anybody used...

The Rohm BH226F. If it's any good, it could replace a lot of PWMs. https://www.digikey.com/short/qptnn7 Anybody used them? Cheers Phil Hobbs -- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510 http://electrooptical.net https://hobbs-eo.com


RIS-797, programmable isolated current-source charge-pulser

Started by Winfield Hill in sci.electronics.design3 years ago 1 reply

The RIS-797 project is for an isolated, programmable current-source charge-pulser, using the op-amp MOSFET techniques analyzed in...

The RIS-797 project is for an isolated, programmable current-source charge-pulser, using the op-amp MOSFET techniques analyzed in x-Chapters 4x.26. This uses four 0.5pF isolator channels to run an I2C DAC and the current-source, including a range switch. Total output node capacitance to ground = 5pF, mostly due to DC-DC power-supply module. Two-terminal floating current sources...