Comparison circuit
AssigneeMurata Manufacturing Co., Ltd.
InventorYasuhide Takase
Life of this patent
Estimating the term…
Abstract
A comparison circuit includes a preliminary amplification circuit that amplifies a voltage difference between a first input voltage and a second input voltage and a latch circuit that compares magnitudes of the first input voltage and the second input voltage according to the amplified voltage difference and latch a comparison result. The preliminary amplification circuit converts the first input voltage and the second input voltage input with the falling edge timing of a clock signal into a first control signal and a second control signal, respectively that return from the reversal state at respective speeds corresponding to the first input voltage and the second input voltage. The latch circuit compares the first input voltage and the second input voltage according to the first control signal and the second control signal.
Claims15
A comparison circuit comprising:
- a preliminary amplification circuit that amplifies a voltage difference between a first input voltage and a second input voltage;
- and
- a latch circuit that compares magnitudes of the first input voltage and the second input voltage according to the amplified voltage difference and latch a comparison result;
- wherein
- the preliminary amplification circuit converts the first input voltage and the second input voltage into a first control signal and a second control signal, respectively, that exhibit reversals with specific change timing of a clock signal and returns at speeds corresponding to respective magnitudes of the first input voltage and the second input voltage;
- and
- the latch circuit compares magnitudes of the first input voltage and the second input voltage according to the first control signal and the second control signal.
Dependencies are inferred from the claim text.