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EL1056A, EL1056
FN7035
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.
Features
• Wide ±12V output levels
• 250ps dispersion
• 3ns delay times
• 1V/ns slew rate—adjustable
• Low overshoot and aberrations in 50Ω 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
Pinout
EL1056A, EL1056
(24-PIN THERMAL SOL PACKAGE)
TOP VIEW
• Analog/digital incoming component verifiers
• Logic emulators
Ordering Information
PART
NUMBER
EL1056CM
EL1056ACM
TEMP.
RANGE
0°C to +75°C
0°C to +75°C
PACKAGE
24-Pin Thermal SOL
24-Pin Thermal SOL
PKG. NO.
MDP0027
MDP0027
*and Heat-spreader
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
|
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
Absolute Maximum Ratings
(T
A
= 25°C)
V
S
V-
B+
B-
I
SR
V
SR
Shunt+
Shunt-
Data, Data
OE, OE
Voltage between V+ and V- . . . . . . . . . . . . . . . . . .+33V
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . -18V
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . V
INH
to V+
Supply Voltage. . . . . . . . . . . . . . . . . . . . . . . . V- to V
INL
Input Current . . . . . . . . . . . . . . . . . . . . . . . 0mA to 3mA
Input Voltage, Power-Down Mode . . . . . . . -0.3V to +6V
Input Voltage . . . . . . . . . . . . . . . . . . . . . (B+) -5V to B+
Input Voltage . . . . . . . . . . . . . . . . . . . . . . B- to (B-) +5V
Input Voltages . . . . . . . . . . . . . . . . . . . . . . . V- to V+ or
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±6V Differential
Input Voltages . . . . . . . . . . . . . . . . . . . . . . . V- to V+ or
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±6V Differential
E, E
Sense
V
INH
V
INL
I
OUT
T
J
T
A
T
ST
P
D
Input Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . V- to V+ or
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .±6V Differential
Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . V- to V+
Input Voltage . . . . . . . . . . . . . . . . . . . . . . .V
INL
-0.3V to B+
Input Voltage . . . . . . . . . . . . . . . . . . . . . . B- to V
INH
+0.3V
Output Current. . . . . . . . . . . . . . . . . . . . . -60mA to +60mA
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . 150°C
Operating Ambient Temperature Range . . . .-0°C to +75°C
Storage Temperature . . . . . . . . . . . . . . . . .-65°C to +150°C
Power Dissipation (T
A
= 25°C)
(See Curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3.1W
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the
device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
IMPORTANT NOTE: All parameters having Min/Max specifications are guaranteed. Typical values are for information purposes only. Unless otherwise noted, all tests
are at the specified temperature and are pulsed tests, therefore: T
J
= T
C
= T
A.
DC Electrical Specifications
PARAMETER
I
S
I
S
, dis
I
VINH
I
VINL
I
DATA
I
OE
I
E
V
SR
Ishunt+, Ishunt-
Vshunt+, Vshunt-
I
SENSE
V
OS
Eg
NL
PSRR
R
O
, en
R
O
, dis
I
O
, dis
I
O
, off
T
A
= 25°C, V+ = B+ =15V, V- = B- = -10V, Rshunt+ = Rshunt- = 6.5Ω, no load. Data, E, and OE from
-1.6V to -0.8V. I
SR
= 800µA. V
INH
= 5V, V
INL
= -1.6V
DESCRIPTION
MIN
TYP
52
17
-20
-20
-30
-3
2
-15
-14
7
20
4
MAX
60
25
20
20
30
30
20
40
7
250
2
50
100
-0.6
-0.6
0.04
0.06
2.2
4.5
20K
100K
-20
-20
-150
6
100K
200K
5
20
20
150
7.5
0
0
UNITS
mA
mA
µA
µA
µA
µA
µA
mV
mA
mV
mA
mV
mV
%
%
%
%
mV/V
Ω
Ω
µA
µA
nA
(V+) + (B+), (V-) + (B-) Supply Currents
(V+) + (B+), (V-) + (B-) Supply Currents, Disabled
OE Input Current
E Input Current
Voltage at I
SR
Pin
-30
-20
0
Sense Threshold at Shunts
Sense Output Currents
Output Offset, Data High, V
INH
= 0V, V
INL
= -1.6V
Data Low, V
INL
= 0V, V
INH
= 5V
Gain Error Data High, V
INH
from 0V to 5V, V
INL
= -1.6V, No Load
Data Low, V
INH
= 5V, V
INL
from -5V to 0V, No Load
Gain Nonlinearity Data High, V
INH
from 0V to 10V, V
INL
= -1.6V, No Load
Data Low, V
INH
= 5V, V
INL
from -10V to 0V, No Load
Power Supply Rejection Ratio of V
OUT
with Respect to B+, B-, Shunt+, or
Shunt- Potential
Output Resistance, Enabled, Il = ±20mA
Output Resistance, Output Disabled, V
O
= -1.6V to -5V, EL1056
EL1056A
Output Current, Output, Disabled, V
O
= 0V
Output Leakage, E Low, (Shut-Down), V
O
= 0V, EL1056
EL1056A
160
1
-50
-100
-1.5
-1.5
200
1.5
2
EL1056A, EL1056
AC Electrical Specifications
T
A
= 25°C, V+ = B+ = +15V, V- = B- = -10V, Rshunt+ = Rshunt- = 6.5
Ω
. R
L
= 500
Ω
. 50
Ω
+ 22pF snubber
included at output. Data E, and OE from -1.6V to -0.8V. I
SR
= 800µA. ECL swing is defined by V
INH
= -
0.8V and V
INL
= -1.6V, CMOS swing defined by V
INH
= 5V and V
INL
= 0V. Propagation delay is
measured at 0.4V movement of output.
PARAMETER
T
PD
Dis
DESCRIPTION
Propagation Delay, CMOS Swing
Propagation Delay Dispersion
Due to Output Edge Direction
From ECL to CMOS Swings
Due to Repetition Rate
Output Slew Rate, CMOS Swing, 20%–80%
Slew Rate Symmetry
Output Rise Time, ECL Swing, 20%–80%
Output Overshoot
CMOS Swing
ECL Swing (I
SR
= 350µA)
Output Disable Delay Time
Output Enable Delay Time
Output Capacitance in Disable
Power-Down Delay Time
Power-On Delay Time
Output Capacitance in Power-Down
Comparator Delay Time — Switching ON
Switching OFF
0.8
MIN
1.0
TYP
3.0
250
250
80
1
3
2.2
190
65
4.7
6.0
3
0.5
90
50
1.5
0.4
500
6.5
8.5
MAX
4.5
450
450
1.2
10
UNITS
ns
ps
ps
ps
V/ns
%
ns
mV
mV
ns
ns
pF
µs
ns
pF
µs
µs
SR
SR
SYM
TR
OS
T
DIS
T
EN
C
O
, dis
T
OFF
T
ON
C
O
, off
T
SENSE
3
EL1056A, EL1056
Block Diagram
4
EL1056A, EL1056
Typical Performance Curves
10V, CMOS, TTL, and ECL Outputs into 550Ω
Load
CMOS and ECL Outputs As Seen at the End of
an Unterminated Cable, Backmatched at Driver
CMOS Output at I
SR
= 100µA, 200µA, 400µA, and
1000µA
Output Slewrate vs I
SR
(Two
Samples)
Propagation Delay vs I
SR
Output Slewrate vs Die
Temperature
5
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