| 摘要 |
<p>An electronic comparator circuit (10) adapted for implementation as an integrated circuit semiconductor device provides high resolution and high speed performance. The circuit comprises a first differential amplifier (12) with clamped diodes (50, 52) that allow a fast response; a source-follower stage (14) connected to the first differential amplifier (12) for buffering its output to enable it to be broad banded; a second differential amplifier (16) driven by the source-follower stage (14) for handling large signal swings while providing additional gain to the output; and a third cascoded gain stage (20) connected to said second differential amplifier (16) to provide increased circuit gain with a rail-to rail output. </p> |
