Invention Grant
- Patent Title: Load current compensation for analog input buffers
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Application No.: US14858264Application Date: 2015-09-18
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Publication No.: US09628099B2Publication Date: 2017-04-18
- Inventor: Satoshi Sakurai
- Applicant: Texas Instruments Incorporated
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent Andrew Viger; Charles A. Brill; Frank D. Cimino
- Main IPC: H03M1/66
- IPC: H03M1/66 ; H03M1/12 ; H03K19/018 ; G11C27/02

Abstract:
Systems and methods for load current compensation for analog input buffers. In various embodiments, an input buffer may include a first transistor (Q1) having a collector terminal coupled to a power supply node and a base terminal coupled to a first input node (vinp); a second transistor (Q2) having a collector terminal coupled to an emitter terminal of the first transistor (Q1); a third transistor (Q3) having an emitter terminal coupled to an emitter terminal of the second transistor (Q2) and to a ground node, a collector terminal coupled to a current source (Ibias), and a base terminal coupled the collector terminal and to a base terminal of the second transistor (Q2); and a capacitor (C1) coupled to the base terminals of the second and third transistors (Q2 and Q3) and to a second input node (vinn), wherein the first and second input nodes (vinp and vinn) are differential inputs.
Public/Granted literature
- US20160164534A1 LOAD CURRENT COMPENSATION FOR ANALOG INPUT BUFFERS Public/Granted day:2016-06-09
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