Tag: Voltage

An updated version of the
Voltage Reference Quad Project’s circuit board.

This is my ver­sion 2 board update, which incor­po­rates sup­ply volt­age reg­u­la­tion, over-cur­rent pro­tec­tion, and trim­mer for the 5.000 volt ref­er­ence all on the same board. Continue read­ing “Voltage Reference Quad Project Version 2 — Part 1”

After see­ing sev­er­al oth­er volt­age ref­er­ence projects online and many more assem­bled boards on Ebay, I decid­ed to put togeth­er my own ver­sion of a mul­ti-out­put mod­ule that I could use for pro­to­typ­ing ADC, and oth­er projects.
I need­ed at least a 2.048 volt and a 4.096 volt pre­ci­sion ref­er­ence. An extreme­ly high accu­ra­cy 5.000 volt ref­er­ence was also on my list. I already had an enclo­sure on hand that I want­ed to use, but in my ear­ly mock ups the three out­puts on the front pan­el just did­n’t look right. So for good mea­sure a 2.500 volt ref­er­ence was added to the project.

The 4.096 volt and low­er ref­er­ence IC’s only required a sta­ble 5 volt sup­ply, but the 5.000 volt ref­er­ence IC required a min­i­mum of 9 volts and prefer­ably 10 volts for max­i­mum sta­bil­i­ty. So a sep­a­rate add-on board was designed to sup­ply 9 or 10 volts along with a warm-up timer and bat­tery low volt­age alert.