Patent ID: 8441287
Filing Date: 2013-05-14
Classification: H03F,H03K

Abstract:
1. A track and hold circuit having an input and an output that operates using a non-zero, substantially constant supply voltage with respect to a ground level, comprising: an operational transconductance amplifier (OTA) coupled to the ground level and having an input and an output, wherein the output is coupled to the output of the track and hold circuit; a capacitor that is coupled across the input and the output of the OTA; a first switch haying an input and an output, wherein the output is coupled to the input of the OTA; a second switch having an input and an output, wherein the input is coupled to the non-zero, substantially constant supply voltage and the output is coupled to the input of the first switch; and a resistor having a first side and a second side, wherein the first side is coupled to the non-zero, substantially constant supply voltage and the second side is coupled to the input of the first switch, and wherein the resistor has a substantially constant resistance.