TL1591

SAMPLE-AND-HOLD CIRCUIT FOR CCD IMAGERS

SOCS026B – SEPTEMBER 1989 – REVISED JUNE 1994

Copyright

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POST OFFICE BOX 655303

description

The TL1591 is a monolithic integrated sample-and-hold circuit that uses the BiFET process with

Schottky-barrier diodes and is designed for use with CCD area imagers. This device consists of an ultra-fast

input-buffer amplifier, a digital-controlled diode-bridge switch, and a high-impedance output buffer amplifier. The

electronic switch is controlled by an LS-TTL-compatible logic input.

functional block diagram

ANLG OUT

A2

A3

A1

C1

4

2

7

ANLG IN

DGTL IN

This device contains circuits to protect its inputs and outputs against damage due to high static voltages or electrostatic fields. These

circuits have been qualified to protect this device against electrostatic discharges (ESD) of up to 2 kV according to MIL-STD-883C,

Method 3015; however, precautions should be taken to avoid application of any voltage higher than maximum-rated voltages to these

high-impedance circuits. During storage or handling, the device leads should be shorted together or the device should be placed in

conductive foam. In a circuit, unused inputs should always be connected to an appropriate logic voltage level, preferably either VCC or ground.

Specific guidelines for handling devices of this type are contained in the publication

Guidelines for Handling Electrostatic-Discharge-Sensitive

(ESDS) Devices and Assemblies available from Texas Instruments.

1

2

3

4

8

7

6

5

ANLG IN

ANLG GND

ANLG OUT

DGTL IN

DGTL GND

SUB GND

P OR PS PACKAGE

(TOP VIEW)

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.