TL1593C

The TL1593C is a three-channel sample-and-hold integrated circuit designed for use in processing video signals generated by TI virtual-phase CCD image sensors. It can be used with one-, two-, and three-channel color and monochrome TI virtual-phase CCDs.

Each sample-and-hold channel consists of a differential-input buffer, a digitally controlled switch, and an output buffer that has high impedance. Separate supply and ground pins are provided for the analog and digital sections to ensure optimum isolation. Internal-hold capacitors are included to reduce the external parts count. The differential inputs allow the amplifier return pin of the imager to be connected to CIN of the sample-and-hold circuit to obtain common-mode rejection for antiblooming clock transients in the CCD. The analog inputs should be capacitively coupled from the CCD outputs to ensure optimum performance.

The TL1593C is supplied in a 16-pin plastic package and is characterized for operation from 0°C to 70°C.