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I need a design for a 0 to +/-400mv (single ended) input to a 0 to 4V fully differential output to be fed into an ADC (i.e. ADC inputs go from +2.048v +/-2v).
You can either use a fully differential amplifier with 10:1 resistors or two individual regular OPs, one 5:1 differential amp and one 1:1 inverting amp.
Analyze this circuit.
I use it to conver a 0Vdc +-10Vac single ended signal to a 2,5Vdc +-2,5Vac one. After that, put an inverter or a differential amplifier to obtain the differential output.[/img]
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