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> Ic LM4702B dual audio power amplifier 200V driver stage
Ic LM4702B dual audio power amplifier 200V driver stage
Dual High Fidelity 200V Audio Power Amp Driver IC.
Power Amplifier building block, requires only output stage transistors to complete a low-distortion low-noise audio amp.
Resulting amplifiers have scaleable output power, and can produce over 300W per channel, single-ended, into 8 ohms with 10% supply rail headroom and 20 % rail regulation at +/- 100V rails.
200V supply ( +/- 100V rails ), 0.001% THD, 112dB S/N ratio, 110dB PSRR
Needs to withstand the output power transistors' supply voltage.
Voltage suffix of this part is "-B", 200V supply version
This is the ideal way to implement an integrated power amp: all the complexity of the front end differential stages, voltage gain stages, and level shifting in an IC, leaving the power output devices external, for scaleability and thermal flexibility.
Output transistors can be Darlingtons, or Darlingtons implemented with discretes (discrete devices connected in Darlington configuration).
