
1
FN7035
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2003. All Rights Reserved. Elantec is a registered trademark of Elantec Semiconductor, Inc.
All other trademarks mentioned are the property of their respective owners.
EL1056A, EL1056
Monolithic High-Speed Pin Driver
The EL1056 is designed to drive high-
quality test signals into close or
terminated loads. It has a dispersion of
250ps or less — whether due to signal size or direction of
edge. It can output a very wide 24V output span,
encompassing all logic families as well as analog levels. The
EL1056 is fabricated in Elantec's oxide isolated process,
which eliminates the possibility of latch-up and provides a
very durable circuit.
The output can be turned off in two ways; the OE pins allow
the output to be put in a high-impedance state which makes
the output look like a large resistance in parallel with 3pF,
even for back-driven signals with as much as 2.5V/μs slew
rate. The E pins put the output in an even higher impedance
state, guaranteed to 150nA leakage in the EL1056A. This
allows accurate measurements on the bus without
disconnecting the EL1056 with a relay.
The EL1056 incorporates an output current sense which can
warn the system controller that excessive output current is
flowing. The trip point is set by two external resistors.
Pinout
EL1056A, EL1056
(24-PIN THERMAL SOL PACKAGE)
TOP VIEW
Features
Wide ±12V output levels
250ps dispersion
3ns delay times
1V/ns slew rate—adjustable
Low overshoot and aberrations in 50
systems
Three-state output
Power-down mode reduces output leakage to
nanoamperes
Overcurrent sense flag available to protect internal output
devices
Buffered analog inputs
Differential logic inputs are compatible with ECL, TTL, and
CMOS
Applications
Memory testers
ASIC testers
Functional board testers
Analog/digital incoming component verifiers
Logic emulators
*and Heat-spreader
Ordering Information
PART
NUMBER
TEMP.
RANGE
PACKAGE
PKG. NO.
EL1056CM
0°C to +75°C
24-Pin Thermal SOL
MDP0027
EL1056ACM
0°C to +75°C
24-Pin Thermal SOL
MDP0027
Data Sheet
March 1993, Rev. A
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