I want to implement a simple circuit which can map -10V +10V voltage range to 0V 5V voltage range. Thus I'm planning to use two op-Amps, one for the slope and the other for the offset. So basically I'm planning to use an inverting amplifier and a summing amplifier consecutively.
But Inverting amplifiers multiplies the input voltage with a minus sign. I need a positive slope. How can I overcome this? Also Could you gibe me any ideas for a cheap op-Amp models for this purpose?