发明名称 |
Interpolating sense amplifier circuits and methods of operating the same |
摘要 |
A circuit includes a first pre-amp circuit that provides a first pre-amp current and a second pre-amp circuit that provides a second pre-amp current. A first threshold circuit is configured to generate a first output signal responsive to a difference between a variable current and the first pre-amp current. A second threshold circuit is configured to generate a second output signal responsive to a difference between the variable current and the second pre-amp current. One of the branches of a differential interpolation circuit includes a first transistor that is connected in a current mirror configuration with the first pre-amp circuit. The first transistor has a width/length ratio equal to the product nk, where n<1. A second transistor is connected in a current mirror configuration with the second pre-amp circuit. The second transistor has a width/length ratio equal to the product mk, where m<1 and n+m is about 1. The interpolation circuit is configured to generate a third output signal responsive to a difference between the variable current and an interpolated reference current given by n*(first pre-amp current)+m*(second pre-amp current).
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申请公布号 |
US2004150465(A1) |
申请公布日期 |
2004.08.05 |
申请号 |
US20030435076 |
申请日期 |
2003.05.09 |
申请人 |
NISHIDA YOSHIO;LIU WENTAI |
发明人 |
NISHIDA YOSHIO;LIU WENTAI |
分类号 |
G11C7/06;H03F3/347;(IPC1-7):H03D1/00 |
主分类号 |
G11C7/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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