Five-level switched-capacitor DAC, method of operation thereof and sigma-delta converter employing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jun 27, 2000
Grant Date -
N/A
app pub date -
Jan 30, 1998
filing date -
Jan 30, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A digital-to-analog converter (DAC) and a method of converting digital numbers to analog equivalents. In one embodiment, the DAC includes: (1) a data decoder that receives a digital number and an input clock signal and develops therefrom SIGN and M control signals and complementary .phi..sub.1 and .phi..sub.2 clock signals and (2) a conversion circuit, coupled to the data decoder and including first and second operational amplifiers (op amps), a switching circuit and sampling and integrating capacitors, the switching circuit coupling positive and negative reference voltages to the sampling capacitors as a function of states of the SIGN and M control signals and adjusting feedback loops associated with the first and second op amps as a function of states of the .phi..sub.1 and .phi..sub.2 clock signals, the first and second op amps generating a voltage difference at outputs thereof representing an analog equivalent of the digital number.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully