The EL2180C/EL2280C/EL2480C are single/dual/quad current-feed-
back operational amplifiers that 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 EL2480C and the EL2280C can output
55mA while swinging to ±4V on ±5V supplies. The EL2180C can out-
put 100mA with similar output swings. These attributes make the
EL2180C/EL2280C/EL2480C excellent choices for low power and/or
low voltage cable driver, HDSL, or RGB applications.
For applications where board space is extremely critical, the EL2180C
is available in the tiny 5-pin SOT23 package, with a footprint size 28%
of an 8-pin SO. The EL2480C is also available in a 24-pin LPP pack-
age. All are specified for operation over the full -40°C to +85°C
temperature range.
Single, dual, and triple versions are also available with the enable
function (EL2186C, EL2286C, and EL2386C).
Applications
•
•
•
•
•
•
•
Low power/battery applications
HDSL amplifiers
Video amplifiers
Cable drivers
RGB amplifiers
Test equipment amplifiers
Current to voltage converters
Connection Diagrams
Ordering Information
Part No
EL2180CN
EL2180CS
EL2180CS-T7
EL2180CS-T13
EL2180CW-T7
EL2180CW-T13
EL2280CN
EL2280CS
EL2280CS-T7
EL2280CS-T13
EL2480CN
EL2480CS
EL2480CS-T7
EL2480CS-T13
EL2480CL
EL2480CL-T7
EL2480CL-T13
Package
8-Pin PDIP
8-Pin SO
8-Pin SO
8-Pin SO
5-Pin SOT23
5-Pin SOT23
8-Pin PDIP
8-Pin SO
8-Pin SO
8-Pin SO
14-Pin PDIP
14-Pin SO
14-Pin SO
14-Pin SO
24-Pin LPP
24-Pin LPP
24-Pin LPP
Tape &
Reel
-
-
7”
13”
7”
13”
-
-
7”
13”
-
-
7”
13”
-
7”
13”
Outline #
MDP0031
MDP0027
MDP0027
MDP0027
MDP0038
MDP0038
MDP0031
MDP0027
MDP0027
MDP0027
MDP0031
MDP0027
MDP0027
MDP0027
MDP0046
MDP0046
MDP0046
NC 1
IN- 2
IN+ 3
VS- 4
EL2180C
(8-Pin SO & 8-Pin PDIP)
8 NC
7 VS+
6 OUT
5 NC
-
+
OUTA 1
INA- 2
INA+ 3
VS- 4
-
B
+
EL2280C
(8-Pin SO & 8-Pin PDIP)
-
A
+
8 VS+
7 OUTB
6 INB-
5 INB+
July 19, 2001
Note:
All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
All parameters having Min/Max specifications are guaranteed. Typ 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 Characteristics
V
S
= ±5V, R
L
= 150Ω, T
A
= 25°C unless otherwise specified.
Parameter
V
OS
TCV
OS
dV
OS
+I
IN
d+I
IN
-I
IN
d-I
IN
CMRR
-ICMR
PSRR
-IPSR
R
OL
+R
IN
+C
IN
CMIR
V
O
Description
Input Offset Voltage
Average Input Offset Voltage Drift
V
OS
Matching
+Input Current
+I
IN
Matching
-Input Current
-I
IN
Matching
Common Mode Rejection Ratio
-Input Current Common Mode Rejection
Power Supply Rejection Ratio
-Input Current Power Supply Rejection
Transimpedance
+Input Resistance
+Input Capacitance
Common Mode Input Range
Output Voltage Swing
V
S
= ±5
V
S
= +5 Single-supply, high
V
S
= +5 Single-supply, low
I
O
Output Current
EL2180C only
EL2280C only, per amplifier
EL2480C only, per amplifier
I
S
Supply Current
Per amplifier
80
50
50
±3.5
±3.5
EL2280C, EL2480C only
V
CM
= ±3.5V
V
CM
= ±3.5V
V
S
is moved from ±4V to ±6V
V
S
is moved from ±4V to ±6V
V
OUT
= ±2.5V
V
CM
= ±3.5V
120
0.5
60
45
EL2280C, EL2480C only
Measured from T
MIN
to T
MAX
EL2280C, EL2480C only
Conditions
Min
Typ
2.5
5
0.5
1.5
20
16
2
50
5
70
1
300
2
1.2
±4.0
±4.0
4.0
0.3
100
55
55
3
6
15
30
40
15
Max
10
Unit
mV
µV/°C
mV
µA
nA
µA
µA
dB
µA/V
dB
µA/V
kΩ
MΩ
pF
V
V
V
V
mA
mA
mA
mA
AC Electrical Characteristics
V
S
= ±5V, R
F
= R
G
= 750Ω for PDIP and SO packages, R
F
= R
G
= 560Ω for SOT23-5 package, R
L
= 150Ω, T
A
= 25°C unless otherwise specified
Parameter
-3dB BW
-3dB BW
0.1dB BW
SR
t
R
, t
F
-3dB Bandwidth
-3dB Bandwidth
0.1dB Bandwidth
Slew Rate
Rise and Fall Time
Description
A
V
= +1
A
V
= +2
A
V
= +2
V
OUT
= ±2.5V, A
V
= +2
V
OUT
= ±500 mV
600
Conditions
Min
Typ
250
180
50
1200
1.5
Max
Unit
MHz
MHz
MHz
V/µs
ns
2
EL2180C/EL2280C/EL2480C-Preliminary
EL2180C/EL2280C/EL2480C-Preliminary
250MHz / 3mA Current Mode Feedback Amplifiers
AC Electrical Characteristics
V
S
= ±5V, R
F
= R
G
= 750Ω for PDIP and SO packages, R
F
= R
G
= 560Ω for SOT23-5 package, R
L
= 150Ω, T
A
= 25°C unless otherwise specified
Parameter
t
PD
OS
t
S
dG
dP
dG
dP
C
S
Overshoot
0.1% Settling
Differential Gain
Differential Phase
Differential Gain
Differential Phase
Channel Separation
Description
Propagation Delay
Conditions
V
OUT
= ±500 mV
V
OUT
= ±500 mV
V
OUT
= ±2.5V, A
V
= -1
A
V
= +2, R
L
= 150Ω
[1]
A
V
= +2, R
L
= 150Ω
A
V
= +1, R
L
= 500Ω
A
V
= +1, R
L
= 500Ω
[1]
[1]
[1]
Min
Typ
1.5
3.0
15
0.05
0.05
0.01
0.01
85
Max
Unit
ns
%
ns
%
°
%
°
dB
EL2280C, EL2480C only, f = 5 MHz
1. DC offset from 0V to 0.714V, AC amplitude 286mV
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