# convert 1-10V controller output to 0-10V input

#### JR_Circuit

Joined Jan 13, 2019
2
I have a 1-10V output signal that I need to convert to 0-10V for a device that cannot sink current but needs a 0-10V signal
The 1-10V ouput needs current sinking , but the input 0-10V cannot sink current , so I need to convert
I Suppose the 1-10V controler output can sink 2-4 mA at max which is my input signal
and the equipment to be controled needs 0-10V voltage type signal

#### ericgibbs

Joined Jan 29, 2010
18,656
hi JR,
Welcome to AAC.
Are you familiar with OPA amps.?
That is one way to cancel the 1V offset.
E

#### BobTPH

Joined Jun 5, 2013
8,665
but the input 0-10V cannot sink current
That makes no sense. Inputs do not source or sink current other than a tiny amount. It is outputs where you need to worry about that.

Bob

#### crutschow

Joined Mar 14, 2008
34,053
Below is a circuit with LTspice simulation that converts 1V-10V to 0V-10V
I used two op amps so that the offset (from the voltage divider R2-R3) can be easily adjusted independent of U2's gain.
The op amps must be single-supply or rail-rail types if a negative supply voltage is not available.

Last edited:

#### Bordodynov

Joined May 20, 2015
3,167
See

Joined Mar 10, 2018
4,057
This, calculator Excel sheet attached. Examples -

Calculated values I got for a Vref of 12.

Vref 12
VoFS 10
VoZS 0
ViFS 10
ViZS 1
m 1.111111
b -1.11111
Rf 100000
Rg 900000
Rg2 4900
Rg1 895100
Vref' 0.999453
R1 53932.19

Regards, Dana.

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