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US 5,296,753 AGranted
Comparator circuit
AssigneeNEC Corporation
InventorNaotoshi Nakadai
Life of this patent
Estimating the term…
Abstract
A comparator circuit of the present invention comprises first and second bipolar type transistors for amplification of the input and reference voltages and first to fourth MOS type transistors for comparison and latching of the amplified input and reference voltages according to the first driving signal and fifth and sixth MOS type transistors provided between the first/second bipolar transistors and the first to fourth MOS type transistors for turning on and off according to the second driving signal, all on a single stage.
Claims4
A comparator circuit comprising:
- first and second bipolar transistors for amplification of an input voltage and a reference voltage,
- first to fourth MOS type transistors for comparison and latching of an amplified input voltage and reference voltage according to a first driving signal, said first and fourth MOS type transistors being driven by said first driving signal and said second and third MOS type transistors connected respectively in parallel with said first and fourth MOS type transistors and receiving said amplified reference voltage and input voltage, and
- fifth and sixth MOS type transistors respectively connected between said first and second bipolar transistors and said first and second and between said third and fourth MOS type transistors for turning on and off according to a second driving signal.
Dependencies are inferred from the claim text.