Patent ID: 9147497
Filing Date: 2015-09-29
Classification: G11C,H03K

Abstract:
1. A sampling circuit, comprising: a switch having a control terminal and a transistor; a first driving module configured to output a first signal to the switch in response to a received analog input signal, the first signal being substantially equivalent to the received analog input signal; and a second driving module configured to output a second signal in response to the received analog input signal such that a control voltage on the control terminal is varied based on the received analog input signal, a substantially constant voltage difference being applied between the control terminal and the second driving module, the second signal being substantially equivalent to the received analog input signal, and a first error difference between the first signal of the first driving module and the received analog input signal being smaller than a second error difference between the second signal of the second driving module and the received analog input signal, wherein the first driving module is further configured to drive the first signal substantially equivalent to the received analog input signal with a higher power than the second driving module driving the second signal.