Differential mode time to digital converter

Details Differential mode time to digital converter Differential mode time to digital converter

1997-01-07

1998-11-10

Williams, Howard L.

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

H03M 150

Patent

active

058360042

ABSTRACT:
A differential mode time to digital converter uses a pair of symmetric capacitors and a pair of constant currents to generate two charging curves with the same characteristics. By charging the capacitors at different timings to produce a voltage difference between the capacitors, and then holding and amplifying the voltage difference, a relationship between time and the digital signal is obtained, thereby reducing the effects of temperature on the electronic element and providing a high noise immunity, short conversion time, and high linearity.

REFERENCES:
patent: 4887085 (1989-12-01), Moyal
patent: 5189313 (1993-02-01), Garuts

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