Invention Grant
- Patent Title: Sense amplifier circuitry for resistive type memory
- Patent Title (中): 用于电阻型存储器的感应放大器电路
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Application No.: US13488432Application Date: 2012-06-04
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Publication No.: US08750018B2Publication Date: 2014-06-10
- Inventor: YongSik Youn , Adrian Ong , Sooho Cha , Chan-kyung Kim
- Applicant: YongSik Youn , Adrian Ong , Sooho Cha , Chan-kyung Kim
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR
- Agency: Renaissance IP Law Group LLP
- Main IPC: G11C11/00
- IPC: G11C11/00

Abstract:
Example embodiments include a resistive type memory current sense amplifier circuit including differential output terminals, first and second input terminals, pre-charge transistors, and current modulating transistors coupled directly to the pre-charge transistors. The pre-charge configuration provides high peak currents to charge the bit line and reference line during a “ready” or “pre-charge” stage of operation of the current sense amplifier circuit. The current modulating transistors are configured to operate in a saturation region mode during at least a “set” or “amplification” stage. The current modulating transistors continuously average a bit line current and a reference line current during the “set” or “amplification” stage, thereby improving noise immunity of the circuit. During a “go” or “latch” stage of operation, a logical value “0” or “1” is latched at the differential output terminals based on positive feedback of a latch circuit.
Public/Granted literature
- US20130322154A1 SENSE AMPLIFIER CIRCUITRY FOR RESISTIVE TYPE MEMORY Public/Granted day:2013-12-05
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