EL2021CJ Intersil Corporation, EL2021CJ Datasheet

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EL2021CJ

Manufacturer Part Number
EL2021CJ
Description
Manufacturer
Intersil Corporation
Datasheet

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EL2021CJ
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EL2021CJ
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Monolithic Pin Driver
used as the pin driver electronics in board test systems.
Capable of overpowering logic outputs, the part can
accurately drive independently set high and low levels with
programmed Slew Rates into reactive loads. It can also be
placed into high impedance to monitor the load without
having to disconnect. Previous board testers had
multiplexing schemes to reduce the number of pin drivers
required. With the small size and power consumption of the
monolithic EL2021, a driver per node with little or no
multiplexing becomes practical. Since only a few pins of
“bed-of-nails” board testers need be active at any given time,
the power-down feature saves substantial power in large
systems.
Ordering Information
Pinout
EL2021CJ
PART NUMBER
TEMP. RANGE
0°C to +75°C
The EL2021 is designed to drive
programmed voltages into difficult
loads. It has the required circuitry to be
(18-PIN DIP)
TOP VIEW
EL2021
®
1
Data Sheet
PACKAGE
CerDIP
Copyright © Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
PKG. NO.
MDP0031
1-888-INTERSIL or 321-724-7143
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
November 1993, Rev. F
Features
• Wide range of programmable analog output levels
• 0.5 Ampere output drive with external transistors
• Programmable Slew Rate
• Low overshoot with large capacitive loads-stable with
• 3-state output
• Power-down capability
• Wide supply range
• Overcurrent sense
Applications
• Loaded circuit board testers
• Digital testers
• Programmable 4-quadrant power supplies
Block Diagram
Truth Table
500pF
E
0
0
0
1
All other trademarks mentioned are the property of their respective owners.
OE
X
0
0
1
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
DATA
0
1
X
X
V
V
High-Z
Undefined
CL
CH
V
OUT
Active
Active
Third State
Power-down
COMMENTS
EL2021
FN7027

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EL2021CJ Summary of contents

Page 1

... Since only a few pins of “bed-of-nails” board testers need be active at any given time, the power-down feature saves substantial power in large systems. Ordering Information PART NUMBER TEMP. RANGE PACKAGE EL2021CJ 0°C to +75°C CerDIP Pinout EL2021 (18-PIN DIP) TOP VIEW 1 November 1993, Rev ...

Page 2

Absolute Maximum Ratings (T = 25° Supply Voltage . . . . . . . . . . . . . . . . . . . . . -0.3V to +16V V- Supply Voltage . . . ...

Page 3

AC Electrical Specifications DC test conditions apply except where noted. For AC tests, R measured from OE or Data crossing 2.5V, V PARAMETER DESCRIPTION SR+ +Slew Rate SR- -Slew Rate SRSYM Slew Rate Symmetry T Propagation Delay PD T Settling ...

Page 4

Typical Performance Curves Family of output waveshapes. ECL, TTL, CMOS, HCMOS with C1 = 50pF, VSR = 1V. Family of output waveshapes. ECL, TTL, CMOS, HCMOS with C1 = 200pF, VSR = 1V, and overcompensated with 22pF from each drive ...

Page 5

Typical Performance Curves Overshoot vs VSR V vs Load Current OUT Supply Current vs VSR Applications Information Output Stage To meet the requirements of low output impedance, wide bandwidth, and large capacitive load driving capability, the EL2021 has a fairly ...

Page 6

FIGURE 1. SIMPLIFIED OUTPUT STAGE (NORMAL MODE) This circuit allows the external transistors to run from B+ and B- supplies that are of less voltage than V+ and V- to conserve power. Reducing B± supplies also reduces dissipations in the ...

Page 7

FIGURE 2. SIMPLIFIED OUTPUT STAGE (HIGH-IMPEDANCE MODE) Power Supplies In typical operation, V+ and V- can be as much as ±15V and as little as V +3V and V -3V, respectively. When driving CH CL heavy output currents, however, it ...

Page 8

... Intersil Corporation’s quality certifications can be viewed at www.intersil.com/design/quality Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

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