I'm looking for appropriate, low cost, fully differential op-amps to implement a line driver for an analogue system.
The system is a pre-amplified output buffer to a digitization board approx 3/4m away using 28AWG copper pair.
The specifications are:
3MHz overall bandwidth, Line resistance of 110Ohms, Line capacitance of 250pF and Line inductance of 3uH. The digitization system includes a 14-bit ADC with ~13bit ENOB. We are aiming for an overall driver gain of 10dB. The ADC and ADC driver are both fully differential so we would prefer a differential driver package rather than multiple single-ended ICs.
We may well use source and end termination with ~110Ohm resistors.
I've been investigating line drivers, but most seems to be digital implementations.
Any advice on where to start, high-current drive output amps, or amplifier suggestions would be very welcome.