1
FN7055
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.
EL2180, EL2280, EL2480
250MHz/3mA Current Mode Feedback
Amplifiers
The EL2180, EL2280, and EL2480 are
single, dual, and quad current-
feedback operational amplifiers which
achieve a -3dB bandwidth of 250MHz at a gain of +1 while
consuming only 3mA of supply current per amplifier. They
will operate with dual supplies ranging from 1.5V to 6V, or
from single supplies ranging from +3V to +12V. In spite of
their low supply current, the EL2480 and the EL2280 can
output 55mA while swinging to 4V on 5V supplies. The
EL2180 can output 100mA with similar output swings. These
attributes make the EL2180, EL2280, and EL2480 excellent
choices for low power and/or low voltage cable-driver, HDSL,
or RGB applications.
For applications where board space is extremely critical, the
EL2180 is available in the tiny 5-pin SOT-23 package, which
has a footprint 28% the size of an 8-pin SO.
For single, dual, and triple applications with disable, consider
the EL2186 (8-pin single), EL2286 (14-pin dual), or EL2386
(16-pin triple). For lower power applications where speed is
still a concern, consider the EL2170/EL2176 family which
also comes in similar single, dual, and quad configurations.
The EL2170/EL2176 family provides a -3dB bandwidth of
70MHz while consuming 1mA of supply current per amplifier.
NOTE:
*EL2180CW symbol is .Cxxx where xxx represents date code
Features
Single (EL2180), dual (EL2280), and quad (EL2480)
topologies
3mA supply current (per amplifier)
250MHz -3dB bandwidth
Tiny SOT23-5 package (EL2180)
Low cost
Single- and dual-supply operation down to 1.5V
0.05%/0.05 diff. gain/diff. phase into 150
1200V/s slew rate
Large output drive current - 100mA (EL2180), 55mA
(EL2280), 55mA (EL2480)
Also available with disable in single (EL2186), dual
(EL2286), and triple (EL2386)
Lower power EL2170/EL2176 family available
(1mA/70MHz) in single, dual, and quad
Applications
Low power/battery applications
HDSL amplifiers
Video amplifiers
Cable drivers
RGB amplifiers
Test equipment amplifiers
Current to voltage converters
Ordering Information
PART NUMBER
PACKAGE
TAPE & REEL
PKG. NO.
EL2180CN
8-Pin PDIP
-
MDP0031
EL2180CS
8-Pin SO
-
MDP0027
EL2180CS-T7
8-Pin SO
7"
MDP0027
EL2180CS-T13
8-Pin SO
13"
MDP0027
EL2180CW-T7
5-Pin SOT-23*
7"
MDP0038
EL2180CW-T13
5-Pin SOT-23*
13"
MDP0038
EL2280CN
8-Pin PDIP
-
MDP0031
EL2280CS
8-Pin SO
-
MDP0027
EL2280CS-T7
8-Pin SO
7"
MDP0027
EL2280CS-T13
8-Pin SO
13"
MDP0027
EL2480CN
14-Pin PDIP
-
MDP0031
EL2480CS
14-Pin SO
-
MDP0027
EL2480CS-T7
14-Pin SO
7"
MDP0027
EL2480CS-T13
14-Pin SO
13"
MDP0027
Data Sheet
November 14,2002
3
Absolute Maximum Ratings
(T
A
= 25C)
Supply Voltage between V
S
+ and GND. . . . . . . . . . . . . . . . . +12.6V
Voltage between V
S
+ and V
S
- . . . . . . . . . . . . . . . . . . . . . . . . +12.6V
Common-Mode Input Voltage . . . . . . . . . . . . . . . . . . . . . V
S
- to V
S
+
Differential Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6V
Current into +IN or -IN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.5mA
Internal Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . See Curves
Operating Ambient Temperature Range . . . . . . . . . .-40C to +85C
Operating Junction Temperature
Plastic Packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150C
Output Current (EL2180) . . . . . . . . . . . . . . . . . . . . . . . . . . . 120mA
Output Current (EL2280) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
Output Current (EL2480) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
Storage Temperature Range . . . . . . . . . . . . . . . . . . -65C to +150C
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
V
S
= 5V, R
L
= 150
, T
A
= 25C unless otherwise specified
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
V
OS
Input Offset Voltage
2.5
10
mV
TCV
OS
Average Input Offset Voltage Drift
Measured from T
MIN
to T
MAX
5
V/C
dV
OS
V
OS
Matching
EL2280, EL2480 only
0.5
mV
+I
IN
+Input Current
1.5
15
A
d+I
IN
+I
IN
Matching
EL2280, EL2480 only
20
nA
-I
IN
-Input Current
16
40
A
d-I
IN
-I
IN
Matching
EL2280, EL2480 only
2
A
CMRR
Common Mode Rejection Ratio
V
CM
= 3.5V
45
50
dB
-ICMR
-Input Current Common Mode
Rejection
V
CM
= 3.5V
5
30
A/V
PSRR
Power Supply Rejection Ratio
V
S
is moved from 4V to 6V
60
70
dB
-IPSR
- Input Current Power Supply
Rejection
V
S
is moved from 4V to 6V
1
15
A/V
R
OL
Transimpedance
V
OUT
= 2.5V
120
300
k
+R
IN
+Input Resistance
V
CM
= 3.5V
0.5
2
M
+C
IN
+Input Capacitance
1.2
pF
CMIR
Common Mode Input Range
3.5
4.0
V
V
O
Output Voltage Swing
V
S
= 5
3.5
4.0
V
V
S
= 5 single-supply, high
4.0
V
V
S
= 5 single-supply, low
0.3
V
I
O
Output Current
EL2180 only
80
100
mA
EL2280 only, per amplifier
50
55
mA
EL2480 only, per amplifier
50
55
mA
I
S
Supply Current
Per amplifier
3
6
mA
EL2180, EL2280, EL2480
4
AC Electrical Specifications
V
S
= 5V, R
F
= R
G
= 750
for PDIP and SO packages, R
F
= R
G
= 560
for SOT23-5 package,
R
L
= 150
, T
A
= 25C unless otherwise specified
PARAMETER
DESCRIPTION
CONDITIONS
MIN
TYP
MAX
UNIT
-3dB BW
-3dB Bandwidth
A
V
= 1
250
MHz
-3dB BW
-3dB Bandwidth
A
V
= 2
180
MHz
0.1dB BW
0.1dB Bandwidth
A
V
= 2
50
MHz
SR
Slew Rate
V
OUT
= 2.5V, A
V
= 2
600
1200
V/s
t
R
, t
F
Rise and Fall Time
V
OUT
= 500mV
1.5
ns
t
PD
Propagation Delay
V
OUT
= 500mV
1.5
ns
OS
Overshoot
V
OUT
= 500mV
3.0
%
t
S
0.1% Settling
V
OUT
= 2.5V, A
V
= -1
15
ns
dG
Differential Gain
A
V
= 2, R
L
= 150
(Note 1)
0.05
%
dP
Differential Phase
A
V
= 2, R
L
= 150
(Note 1)
0.05
dG
Differential Gain
A
V
= 1, R
L
= 500
(Note 1)
0.01
%
dP
Differential Phase
A
V
= 1, R
L
= 500
(Note 1)
0.01
C
S
Channel Separation
EL2280, EL2480 only, f = 5MHz
85
dB
NOTE:
1. DC offset from 0V to 0.714V, AC amplitude 286mV
P-P
, f = 3.58MHz
EL2180, EL2280, EL2480
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