| 摘要 |
An integrated circuit including an amplifier and a first circuit. The amplifier is configured to receive a sensed signal and provide an amplified signal. The first circuit is configured to track a first signal that is based on the amplified signal. The first circuit includes a first comparator, tracking logic and a first digital to analog converter. The first comparator is configured to respond to a second signal that is based on the first signal and provide a comparator output signal. The tracking logic is configured to receive the comparator output signal and update a digital output. The first digital to analog converter is configured to receive the digital output and provide a tracking signal that is summed with the first signal to provide the second signal. |
