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Polarisation network for integrated amplifier pairs, interchangeable internally from a single-stroke device to a counter-stroke device and vice versa.
Polarisation network for integrated amplifier pairs, interchangeable internally from a single-stroke device to a counter-stroke device and vice versa.
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机译:集成放大器对的极化网络,可在内部从单冲程设备转换为反冲程设备,反之亦然。
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摘要
In an integrated amplifier comprising at least a pair of operational amplifiers (A1,A2) which may be connected in a single-ended configuration to form a stereo amplifier or alternatively in a bridge configuration to increase the output dynamics which may be obtained, a single constant current generator (I3) generating a current having a value which is twice the value of the bias current of the input stages of the two operational amplifiers (A1,A2), connected between an inverting input (IN2) of one of the two operational amplifiers and ground, allows to cancel the offset voltage without contributing to increase in any appreciable way the noise level at the inputs and without the signal applied to the input terminals of the integrated amplifier causing modulation problems.
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