Invention Grant
- Patent Title: Input Schmitt buffer operating at a high voltage using low voltage devices
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Application No.: US17523490Application Date: 2021-11-10
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Publication No.: US11621704B2Publication Date: 2023-04-04
- Inventor: Rahul Gupta , Nitin Bansal , Sriram Kumar Jayanthi
- Applicant: Synopsys, Inc.
- Applicant Address: US CA Mountain View
- Assignee: Synopsys, Inc.
- Current Assignee: Synopsys, Inc.
- Current Assignee Address: US CA Mountain View
- Agency: Lowenstein Sandler LLP
- Main IPC: H03K3/00
- IPC: H03K3/00 ; H03K3/037 ; H03K3/3565

Abstract:
An input buffer circuit includes a tracking circuit that produces a tracking signal and an inverter including a cascade of low voltage switching devices coupled to an output of the tracking circuit. The tracking signal follows a first signal during a first time period and a second signal during a second time period. The tracking circuit is configured to reduce an input high voltage/input low voltage (VIH/VIL) spread.
Public/Granted literature
- US20220149822A1 INPUT SCHMITT BUFFER OPERATING AT A HIGH VOLTAGE USING LOW VOLTAGE DEVICES Public/Granted day:2022-05-12
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