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LM334: LM4132: Load Independent 5mA constant current source (Load Resistance 650 ohm to 750 ohm).

Part Number: LM334
Other Parts Discussed in Thread: LM4030, LM4132


We are looking for Load Independent constant current source, Load current value will be 5mA. Load resistance will vary from 650 Ohm to 850 Ohm. Input power is 5V.

Also, it should have lower temperature coefficient, because this is going to be implemented in Sensor application.

I do have size constraint on board,  so I am looking for less component solution.

I experimented the same with LM334, but output  current is varying with changing load resistance. Tested schematics are attached here.LM334 Based_ Current Source Design.pdf

Can we use LM334 as (Load independent) constant current in such kind of application?

Thank you,


Rajesh Matere.