EL2244, EL2444
NOT RECOMMENDED FOR NEW DESIGNS
POSSIBLE SUBSTITUTE PRODUCTS
(ISL55002, ISL55004)
DATASHEET
FN7059
Rev 2.00
May 16, 2005
Dual/Quad Low-Power 120MHz Unity-Gain Stable Op Amp
The EL2244 and EL2444 are dual and quad versions of the
popular EL2044. They are high speed, low power, low cost
monolithic operational amplifiers built on Elantec's
proprietary complementary bipolar process. The EL2244
and EL2444 are unity-gain stable and feature a 325V/µs
slew rate and 120MHz gain-bandwidth product while
requiring only 5.2mA of supply current per amplifier.
The power supply operating range of the EL2244 and
EL2444 is from ±18V down to as little as ±2V. For single-
supply operation, the EL2244 and EL2444 operate from 36V
down to as little as 2.5V. The excellent power supply
operating range of the EL2244 and EL2444 makes them an
obvious choice for applications on a single +5V or +3V
supply.
The EL2244 and EL2444 also feature an extremely wide
output voltage swing of ±13.6V with V
S
= ±15V and R
L
=1k.
At ±5V, output voltage swing is a wide ±3.8V with R
L
= 500
and ±3.2V with R
L
= 150. Furthermore, for single-supply
operation at +5V, output voltage swing is an excellent 0.3V
to 3.8V with R
L
= 500.
At a gain of +1, the EL2244 and EL2444 have a -3dB
bandwidth of 120MHz with a phase margin of 50°. Because
of their conventional voltage-feedback topology, the EL2244
and EL2444 allow the use of reactive or non-linear elements
in their feedback network. This versatility combined with low
cost and 75mA of output-current drive make the EL2244 and
EL2444 an ideal choice for price-sensitive applications
requiring low power and high speed.
Features
• 120MHz gain-bandwidth product
• Unity-gain stable
• Low supply current (per amplifier)
- 5.2mA at V
S
= ±15V
• Wide supply range - 2.5V to 36V
• High slew rate - 325V/µs
• Fast settling - 80ns to 0.1% for a 10V step
• Low differential gain - 0.04% at A
V
= +2, R
L
= 150
• Low differential phase - 0.15° at A
V
= +2, R
L
= 150
• Wide output voltage swing - ±13.6V with V
S
= ±15V,
R
L
= 1k
• Low cost, enhanced replacement for the AD827 &
LT1229/LT1230
•
Pb-Free available (RoHS compliant)
Applications
• Video amplifiers
• Single-supply amplifiers
• Active filters/integrators
• High speed signal processing
• ADC/DAC buffers
• Pulse/RF amplifiers
• Pin diode receivers
• Log amplifiers
Pinouts
EL2244
(8-PIN SO, PDIP)
TOP VIEW
EL2444
[14-PIN SO (0.150”), PDIP]
TOP VIEW
OUT1
OUT
IN1-
IN1+
V-
1
2
3
4
-
+
-
+
1
2
3
4
5
6
7
-
+
+
-
-
+
+
-
14 OUT4
13 IN4-
12 IN4+
11 V-
10
I
N3+
9
8
7
6
5
V+
IN1-
OUT2
IN1+
I
N2-
V+
IN2+
IN2+
IN2-
OUT2
IN3-
OUT3
8
FN7059 Rev 2.00
May 16, 2005
Page 1 of 11
EL2244, EL2444
Absolute Maximum Ratings
(T
A
= 25°C)
Supply Voltage (V
S
). . . . . . . . . . . . . . . . . . . . . . . . . . . . ±18V or 36V
Input Voltage (V
IN)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±V
S
Differential Input Voltage (dV
IN
) . . . . . . . . . . . . . . . . . . . . . . . .±10V
Continuous Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . 40mA
Power Dissipation (P
D
) . . . . . . . . . . . . . . . . . . . . . . . . . See Curves
Operating Temperature Range (T
A
) . . . . . . . . . . . . .-40°C to +85°C
Operating Junction Temperature (T
J
) . . . . . . . . . . . . . . . . . . +150°C
Storage Temperature (T
ST
) . . . . . . . . . . . . . . . . . . .-65°C to +150°C
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
V
OS
DESCRIPTION
Input Offset Voltage
V
S
= ±15V, R
L
= 1k, unless otherwise specified.
CONDITION
V
S
= ±15V
TEMP
25°C
T
MIN
, T
MAX
MIN
TYP
0.5
MAX
4.0
9.0
10.0
2.8
8.2
11.2
2.8
50
300
500
50
0.3
800
600
1200
1000
65
60
70
70
±14.0
±4.2
4.2/0.1
±13.4
±13.1
±12.0
±3.4
±13.4
±3.8
±3.2
3.6/0.4
3.5/0.5
40
35
75
3.8/0.3
±13.6
90
80
1500
UNIT
mV
mV
µV/°C
µA
µA
µA
nA
nA
nA
nA/°C
V/V
V/V
V/V
V/V
dB
dB
dB
dB
V
V
V
V
V
V
V
V
V
V
mA
mA
TCV
OS
I
B
Average Offset Voltage
Drift
Input Bias Current
(Note 1)
V
S
= ±15V
All
25°C
T
MIN
, T
MAX
V
S
= ±5V
I
OS
Input Offset Current
V
S
= ±15V
25°C
25°C
T
MIN
, T
MAX
V
S
= ±5V
TCI
OS
A
VOL
Average Offset Current
Drift
Open-Loop Gain
(Note 1)
V
S
= ±15V, V
OUT
= ±10V, R
L
= 1k
25°C
All
25°C
T
MIN
, T
MAX
V
S
= ±5V, V
OUT
= ±2.5V, R
L
= 500
V
S
= ±5V, V
OUT
= ±2.5V, R
L
= 150
PSRR
Power Supply Rejection
Ratio
Common-mode
Rejection Ratio
Common-mode Input
Range
V
S
= ±5V to ±15V
25°C
25°C
25°C
T
MIN
, T
MAX
CMRR
V
CM
= ±12V, V
OUT
= 0V
25°C
T
MIN
, T
MAX
CMIR
V
S
= ±15V
V
S
= ±5V
V
S
= +5V
25°C
25°C
25°C
25°C
T
MIN
, T
MAX
V
OUT
Output Voltage Swing
V
S
= ±15V, R
L
= 1k
V
S
= ±15V, R
L
= 500
V
S
= ±5V, R
L
= 500
V
S
= ±5V, R
L
= 150
V
S
= +5V, R
L
= 500
25°C
25°C
25°C
25°C
T
MIN
, T
MAX
I
SC
Output Short Circuit
Current
25°C
T
MIN
, T
MAX
FN7059 Rev 2.00
May 16, 2005
Page 3 of 11
EL2244, EL2444
DC Electrical Specifications
PARAMETER
I
S
DESCRIPTION
Supply Current
(per amplifier)
V
S
= ±15V, R
L
= 1k, unless otherwise specified.
(Continued)
CONDITION
V
S
= ±15V, no load
TEMP
25°C
T
MIN
T
MAX
V
S
= ±5V, no load
R
IN
Input Resistance
Differential
Common-mode
C
IN
R
OUT
PSOR
Input Capacitance
Output Resistance
A
V
= +1 @10MHz
A
V
= +1
25°C
25°C
25°C
25°C
25°C
25°C
25°C
±2.0
2.5
5.0
150
15
1.0
50
±18.0
36.0
MIN
TYP
5.2
MAX
7
7.6
7.6
UNIT
mA
mA
mA
mA
k
M
pF
m
V
V
Power-Supply Operating Dual-supply
Range
Single-supply
NOTE:
1. Measured from T
MIN
to T
MAX
.
Closed-Loop AC Electrical Specifications
V
S
= ±15V, A
V
= +1, R
L
= 1k, unless otherwise specified.
PARAMETER
BW
DESCRIPTION
-3dB Bandwidth
(V
OUT
= 0.4V
PP
)
CONDITION
V
S
= ±15V, A
V
= +1
V
S
= ±15V, A
V
= -1
V
S
= ±15V, A
V
= +2
V
S
= ±15V, A
V
= +5
V
S
= ±15V, A
V
= +10
V
S
= ±5V, A
V
= +1
GBWP
PM
CS
SR
FPBW
t
R
, t
F
OS
t
PD
t
S
dG
dP
eN
iN
NOTES:
1. Slew rate is measured on rising edge
2. For V
S
= ±15V, V
OUT
= 20V
PP
. For V
S
= ±5V, V
OUT
= 5V
PP
. Full-power bandwidth is based on slew rate measurement using: FPBW = SR /
(2 * Vpeak).
3. Video performance measured at V
S
= ±15V, A
V
= +2 with 2 times normal video level across R
L
= 150. This corresponds to standard video
levels across a back-terminated 75 load. For other values of R
L
, see curves.
Gain-Bandwidth Product
Phase Margin
Channel Separation
Slew Rate (Note 1)
Full-Power Bandwidth
(Note 2)
Rise Time, Fall Time
Overshoot
Propagation Delay
Settling to +0.1% (A
V
= +1)
Differential Gain (Note 3)
Differential Phase (Note 3)
Input Noise Voltage
Input Noise Current
V
S
= ±15V, 10V step
V
S
= ±5V, 5V step
NTSC/PAL
NTSC/PAL
10kHz
10kHz
V
S
= ±15V
V
S
= ±5V
R
L
= 1k, C
L
= 10pF
f = 5MHz
V
S
= ±15V, R
L
= 1k
V
S
= ±5V, R
L
= 500
V
S
= ±15V
V
S
= ±5V
0.1V step
0.1V step
TEMP
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
4.0
250
MIN
TYP
120
60
60
12
6
80
60
45
50
85
325
200
5.2
12.7
3.0
20
2.5
80
60
0.04
0.15
15.0
1.50
MAX
UNIT
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
°
dB
V/µs
V/µs
MHz
MHz
ns
%
ns
ns
ns
%
°
nV/Hz
pA/Hz
FN7059 Rev 2.00
May 16, 2005
Page 4 of 11
Test/Measurement
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