| 摘要 |
<p>A voltage offset compensation circuit for a high gain amplifier having a fixed input voltage offset, includes sample and hold means for periodically sampling the offset voltage and gain error voltage of the amplifier, and holding the sampled voltage; storage means, operable between sampling periods, to store the sampled and held voltage; and further means, operable during the sampling periods, to continuously maintain the output of the high gain amplifier at a value that is gain error and voltage offset compensated. The voltage offset compensation circuit may be used in sampled-data circuits, or continuous-time amplifier circuits utilising either single-ended, or differential, inputs and either single-ended, or differential, outputs. <IMAGE></p> |
