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US 5,182,560 AGranted
Analog-to-digital converter for high speed low power applications
AssigneeTexas Instruments Incorporated
InventorNoboru Shiwaku
Life of this patent
Estimating the term…
Abstract
A high speed, low power parallel analog-to-digital converter (100) with comparator (C.sub.j) having sense amplifiers operating with low power, high speed and a ROM encoder (130) also operating in low power, high speed regime.
Claims9
An analog-to-digital converter comprising:
- (a) an analog input;
- (b) at least one reference input;
- (c) at least one comparator coupled to said analog input and said reference input, said comparator including a feedback sense amplifier with common mode feed through at each sense amplifier input, said common mode feed through provided by a capacitance coupling each said input to the drains of a differential pair transistor amplifier;
- and
- (d) an output coupled to said comparator.
2 more elements
A processing system, comprising:
- (a) an analog input;
- (b) an analog-to-digital converter coupled to said analog input and at least one reference input;
- (c) said analog-to-digital converter including at least one comparator, said comparator including a feedback sense amplifier with common mode feed through at each sense amplifier input, said common mode feed through provided by a capacitance coupling each said input to the drains of a differential pair transistor amplifier;
- (d) a digital signal processor coupled to said analog-to-digital converter;
- and
- (e) an output coupled to said digital signal processor.
3 more elements
Dependencies are inferred from the claim text.