2 results about "Track and hold" patented technology

A track-and-hold circuit includes a charge pump circuit and a bootstrapped switch. The charge pump circuit pumps a supply voltage into a pumped voltage higher than the supply voltage, and includes at least one MOSFET capacitor switched based on a clock signal, and a pre-charging switch coupled between a pull-up source and a body of the MOSFET capacitor. The pre-charging switch includes a native NMOS transistor and is switched based on the clock signal to pre-charge the body of the MOSFET capacitor, thereby reducing a wake-up delay time of the pumped voltage. The bootstrapped switch tracks and holds an input signal based on a bootstrapped driving signal to generate a track-and-hold output signal. The bootstrapped driving signal is generated based on a track-and-hold control signal related to the clock signal, the input signal, and the pumped voltage.

A track-and-hold circuit includes a charge pump circuit and a bootstrapped switch. The charge pump circuit pumps a supply voltage into a pumped voltage higher than the supply voltage, including: a MOSFET capacitor, switched based on a clock signal; and a pre-charging circuit for pre-charging a body of the MOSFET capacitor based on a pre-charging signal synchronous with the clock signal, thereby reducing a wake-up delay time of the pumped voltage. The bootstrapped switch tracks and holds an input signal received from one end based on a bootstrapped driving signal, thereby generating a track-and-hold output signal on another end. The bootstrapped driving signal is generated based on a track-and-hold control signal related to the clock signal, the input signal and the pumped voltage provided by the charge pump circuit.