TL1591
SAMPLE-AND-HOLD CIRCUIT FOR CCD IMAGERS
SOCS026B – SEPTEMBER 1989 – REVISED JUNE 1994
P OR PS PACKAGE
(TOP VIEW)
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15-MHz Sampling Rate
30-ns Acquisition Time
Diode-Bridge Switch
25-MHz Bandwidth
ANLG V
DGTL V
CC
1
2
3
4
8
7
6
5
CC
ANLG IN
ANLG GND
ANLG OUT
DGTL IN
DGTL GND
SUB GND
Low-Voltage Supply
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-bufferamplifier, adigital-controlleddiode-bridgeswitch, andahigh-impedanceoutputbufferamplifier. The
electronic switch is controlled by an LS-TTL-compatible logic input.
functional block diagram
4
ANLG OUT
2
A1
A2
A3
ANLG IN
7
DGTL IN
C1
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,
Method3015;however, precautionsshouldbetakentoavoidapplicationofanyvoltagehigherthanmaximum-ratedvoltagestothese
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 V
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.
or ground.
CC
Copyright 1994, Texas Instruments Incorporated
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.
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