LT3092 AS DAC controlled canstant current source

Thread Starter

Ateeq Ur Rehman

Joined Mar 19, 2019
Hi Everyone,

I want to use LT3092 as DAC controlled canstant current source as mention in datasheet but confused how to configure and how i get Iout=5mA
please sombody upload working as in mention configuration and circuit .
Thanks in Advanced


Joined Feb 22, 2014
Hi Ateeq,
The current source is effectively an amplifier, it will match the voltage it sees at the "set" pin, to its output at "out" which in the example is connected to a 10 ohm resistor.. so @ 1V at the input the amplifier will set the output until it is also at 1V.. @10 Ohm this means that the IC is "sinking" 100mA.

(Just beaten to it by Bertus!)