Title :
A high-frequency track-and-hold stage with offset and gain compensation
Author :
Temes, Gabor C. ; Huang, Yunteng ; Ferguson, Paul F., Jr.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
fDate :
8/1/1995 12:00:00 AM
Abstract :
A novel fully differential track-and-hold stage is proposed. The gain of the stage does not depend on capacitor matching, and it uses a predictive correlated-double-sampling scheme to reduce the effects of op-amp offset and finite dc gain. Due to these properties, it is well suited for the construction of a fully differential sample-and-hold stage using a ping-pong approach. Simulations indicate that the circuit is capable of high-speed and high-accuracy operation without requiring high-quality components
Keywords :
compensation; sample and hold circuits; DC gain; circuit simulation; fully differential sample-and-hold stage; gain compensation; high-frequency track-and-hold stage; high-speed operation; offset compensation; op-amp offset; ping-pong; predictive correlated-double-sampling; Capacitors; Circuit noise; Circuit simulation; Clocks; Delay; Noise reduction; Operational amplifiers; Sampling methods; Virtual manufacturing; Voltage;
Journal_Title :
Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on
