Amplifiers – With periodic switching input-output
Patent
1994-02-14
1995-04-25
Mottola, Steven
Amplifiers
With periodic switching input-output
330 51, H03F 102
Patent
active
054102707
ABSTRACT:
The present invention provides a circuit (10) and method for sampling a single-ended signal and then converting the single-ended signal to a differential signal. After the single-ended signal is converted to a differential signal, then the offset voltage and low frequency noise of an operational amplifier (38) are subtracted from the differential signal using analog techniques. The subtraction operation effectively removes an operational amplifier's offset voltage and a low frequency noise from being a source of error in the differential output signal of the circuit.
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McCollough Kelvin E.
Rybicki Mathew A.
Apperley Elizabeth A.
Motorola Inc.
Mottola Steven
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