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Invention Grant
CN1971755B 差动感测放大器电路及利用通过切换电路的时钟信号启动的方法 失效 - 权利终止

差动感测放大器电路及利用通过切换电路的时钟信号启动的方法
Abstract:
本发明提供一种差动感测放大器，可配置为前置放大器或闩锁电路，由连接切换电路的时钟信号启动。当时钟信号设定在第一信号电平时，差动感测放大器的切换电路被启动，使得差动感测放大器配置为具有正反馈电路的前置放大器。当时钟信号设定在第二信号电平时，差动感测放大器的切换电路被关闭，使得差动感测放大器配置为闩锁电路。在一读取周期中，差动感测放大器首先作为前置放大器，之后作为闩锁电路。
Abstract(English):

A differential sense amplifier is described that can be configured as a preamplifier or a latch circuit as triggered by a clock signal connected to a switch circuit. When the clock signal is set at a first signal level, the switch circuit in the differential sense amplifier is activated so that the differential sense amplifier is configured as a preamplifier with a positive feedback circuit. Whenthe clock signal is set at a second signal level, the switch circuit in the differential sense amplifier is deactivated so that the differential sense amplifier is configured as the latch circuit. For one read cycle, the differential sense amplifier operates first as the preamplifier and then as the latch circuit.

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