Patent · US Expired

Sample and hold circuit

US4389579A · kind A · utility

107Cited by
3References
12Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 27, 1981
Grant dateJun 21, 1983
Priority date
Expiry dateFeb 27, 2001

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH03K17/667
  • WIPO fieldBasic communication processes
  • WIPO sectorElectrical engineering

Abstract

A sample and hold circuit for producing an output voltage the magnitude of which is representative of the peak magnitude of a sampled input signal. The sample and hold circuit comprises a unity gain amplifier having an input terminal to receive said input signal and a cascoded output section for sourcing current at an output terminal. A discharge circuit is provided which includes a cascoded section for sinking current at said output terminal. Each of said cascoded sections being coupled to a capacitive load for charging or discharging the capacitor respectively to provide said output voltage.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.