1
FN7055.1
EL2480
250MHz/3mA Current Mode Feedback
Amplifier
The EL2480 is a quad current-feedback operational amplifier
which achieves a -3dB bandwidth of 250MHz at a gain of +1
while consuming only 3mA of supply current per amplifier. It
will operate with dual supplies ranging from 1.5V to 6V, or
from single supplies ranging from +3V to +12V. In spite of its
low supply current, the EL2480 can output 55mA while
swinging to 4V on 5V supplies. These attributes make the
EL2480 an excellent choice for low power and/or low voltage
cable-driver, HDSL, or RGB applications.
For triple applications with disable, consider the EL2386 (16-
pin triple).
Features
Quad topology
3mA supply current (per amplifier)
250MHz -3dB bandwidth
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 - 55mA
Also available with disable in triple
Pb-Free plus Anneal available (RoHS compliant)
Applications
Low power/battery applications
HDSL amplifiers
Video amplifiers
Cable drivers
RGB amplifiers
Test equipment amplifiers
Current to voltage converters
Pinout
EL2480
(14-PIN SO)
TOP VIEW
Ordering Information
PART NUMBER
PACKAGE
TAPE & REEL
PKG.
DWG. #
EL2480CS
14-Pin SO
-
MDP0027
EL2480CS-T7
14-Pin SO
7"
MDP0027
EL2480CS-T13
14-Pin SO
13"
MDP0027
EL2480CSZ
(See Note)
14-Pin SO
(Pb-free)
-
MDP0027
EL2480CSZ-T7
(See Note)
14-Pin SO
(Pb-free)
7"
MDP0027
EL2480CSZ-T13
(See Note)
14-Pin SO
(Pb-free)
13"
MDP0027
NOTE: Intersil Pb-free products employ special Pb-free material sets;
molding compounds/die attach materials and 100% matte tin plate
termination finish, which are RoHS compliant and compatible with
both SnPb and Pb-free soldering operations. Intersil Pb-free products
are MSL classified at Pb-free peak reflow temperatures that meet or
exceed the Pb-free requirements of IPC/JEDEC J STD-020.
Data Sheet
May 23, 2005
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-352-6832
|
Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright Intersil Americas Inc. 2002, 2003, 2005. All Rights Reserved
All other trademarks mentioned are the property of their respective owners.
2
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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
0.5
mV
+I
IN
+Input Current
1.5
15
A
d+I
IN
+I
IN
Matching
20
nA
-I
IN
-Input Current
16
40
A
d-I
IN
-I
IN
Matching
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
Per amplifier
50
55
mA
I
S
Supply Current
Per amplifier
3
6
mA
EL2480
3
AC Electrical Specifications
V
S
= 5V, R
F
= R
G
= 750
, 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
f = 5MHz
85
dB
NOTE:
1. DC offset from 0V to 0.714V, AC amplitude 286mV
P-P
, f = 3.58MHz
EL2480
4
Test Circuit
(per Amplifier)
Simplified Schematic
(per Amplifier)
EL2480
5
Typical Performance Curves
Non-Inverting Frequency
Response (Gain)
NonInverting Frequency
Response (Phase)
Frequency Response
for Various R
F
and R
G
Inverting Frequency
Response (Gain)
Inverting Frequency
Response (Phase)
Frequency Response
for Various R
L
and C
L
Frequency Response for
Various C
IN
-
PSRR and CMRR
vs Frequency
Transimpedance (R
OL
) vs
Frequency
EL2480
PDF 
ZIP