Invention Application
- Patent Title: SAMPLE AND HOLD CIRCUIT
- Patent Title (中): 示例和保持电路
-
Application No.: US13455400Application Date: 2012-04-25
-
Publication No.: US20130285705A1Publication Date: 2013-10-31
- Inventor: Mohammad Nizam U. Kabir , Douglas A. Garrity , Rakesh Shiwale
- Applicant: Mohammad Nizam U. Kabir , Douglas A. Garrity , Rakesh Shiwale
- Applicant Address: US TX Austin
- Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee: FREESCALE SEMICONDUCTOR, INC.
- Current Assignee Address: US TX Austin
- Main IPC: G11C27/02
- IPC: G11C27/02
![SAMPLE AND HOLD CIRCUIT](/abs-image/US/2013/10/31/US20130285705A1/abs.jpg.150x150.jpg)
Abstract:
A sample and hold circuit is provided. The circuit includes a plurality of switches, a first capacitor, an operational amplifier having a first input selectively coupled to the first capacitor and an output, a second capacitor and a third capacitor both selectively coupled to the first capacitor and both selectively coupled between the first input of the operational amplifier and the output of the operational amplifier, wherein the plurality of switches are configured to receive a plurality of control signals such that the first capacitor is configured to sample an input signal in a sample phase and to transfer a charge to one of the second capacitor and the third capacitor in a hold phase, and the second capacitor and third capacitor are configured to alternate between holding the transferred charge and resetting in any back-to-back hold phases.
Public/Granted literature
- US08610467B2 Sample and hold circuit Public/Granted day:2013-12-17
Information query