Constant slope ramp circuits for sample-data circuits
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United States of America Patent
Stats
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Aug 7, 2007
Grant Date -
Feb 1, 2007
app pub date -
Jul 18, 2006
filing date -
Jul 19, 2005
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A sample-data analog circuit includes a level-crossing detector. The level-crossing detector controls sampling switches to provide a precise sample of the output voltage when the level-crossing detector senses the predetermined level crossing of the input signal. A multiple segment ramp waveform generator is used in the sample-data analog circuits. The ramp waveform generator includes an amplifier, a variable current source, and a voltage detection circuit coupled to the current source to control the change in the amplitude of the current. The ramp generator produces constant slope within each segment regardless of the load condition. The sample-data analog circuit also utilizes variable bandwidths and thresholds.
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Patent Citation Ranking
- 2 Citation Count
- G01D Class
- 6.49 % this patent is cited more than
- 18 Age
