Infinite sample and hold amplifier

Posted on Jul 31, 2012

During normal' 'hold'' mode, the replicated analog voltage is buffered straight through the S/H amplifier to the output. Upon issuance of a SAMPLE signal, the S/H amplifier is placed in the hold mode, holding the voltage until the new analog voltage is valid. The same SAMPLE signal triggers an update to the input sample-and-hold amplifier. The most current analog voltage is captured and held for conversion. The previously determined voltage is held stable at the output during the conversion cycle while the SAR/D-to-A converter continuously adjusts to replicate the new input voltage.

Infinite sample and hold amplifier
Click here to download the full size of the above Circuit.

At the end of the conversion, the output sample-and-hold amplifier is once again placed in the track mode. The new analog voltage is then regenerated.

Leave Comment

characters left:

New Circuits



Popular Circuits

14MHz SSB 10mW transceiver
All transistor microphone pre-amplifier
RS-232 to TTL cable with MAX232
8 LED Effects using PIC16F84A
gps driven clock compasss peedo
200mA per Hour 12V NiCAD Battery Charger circuit
Robotrex Robotic Dinasaur
USB Printer Share Switch Circuit Project
remote control mains switch
Op Amp Stereo Amplifier