| 摘要 |
PROBLEM TO BE SOLVED: To convert differential output signals from sense amplifiers of a DRAM into a non-differential current mode signal. SOLUTION: The differential output signals from the sense amplifiers of the DRAM are applied to a unit (5) which converts these output signals to the non-differential current mode signal. An output signal from a data line is converted to a small swing voltage signal (11). The small swing voltage signal is compared with a reference voltage level, thereby generating a full swing voltage output signal (12). The reference voltage level is generated by a sample and hold circuit which samples the small swing voltage level when the differential signals from the sensors are equal. The sampled level is stored for comparison with the small swing voltage level resulting from the sensing of the stored voltage level. The full swing voltage output signal is suitable for use with CMOS circuits associated with the DRAM. COPYRIGHT: (C)2008,JPO&INPIT
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