5v to 65mv with offset of 2.5v conversion

[koba30]

Good day, what could be a good way to convert 0-5v to 0-65mV with a offset of 2.5V?, the purpose is to simulate the output of a pressure transducer that uses a Wheatstone bridge

[Berni]

Resistor divider of a ratio of 0.013 where the top is connected to the 5V signal while the bottom is connected to a bias voltage of 2,5325 V. Middle of the divider is the voltage you want.

[TimFox]

With some algebra, you could design a similar network with an input resistor feeding the junction of two resistors between +5 V supply and 0 V, if the +5 V supply is available.
The Thévenin equivalent of the latter two resistors is equivalent to Berni's suggestion of a resistor to a +2.5325 V bias supply.
You may need a variable resistor element to calibrate this if your +2.5 V offset is critical.

[rstofer]

Chapter 4 of "Op Amps For Everyone" deals with linear equations of the form: y = m*x + b where m is the gain and b is the offset.

https://web.mit.edu/6.101/www/reference/op_amps_everyone.pdf

[Terry Bites]

All opamp scaling and offsets sorted. See attached.
Alternatively, for more precision, use an instrumentation amplifier.
The have the function (Gain*(a-b))+Ref.
eg INA156 see fig 2 of data sheet.

[8753ES]