
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.
2001 Elantec Semiconductor, Inc.
E
L
22
44
C
,E
L
24
44
C
General Description
The EL2244C/EL2444C are dual and quad versions of the popular
EL2044C. They are high speed, low power, low cost monolithic oper-
ational amplifiers built on Elantec's proprietary complementary
bipolar process. The EL2244C/EL2444C are unity-gain stable and
feature a 325V/s slew rate and 120MHz gain-bandwidth product
while requiring only 5.2mA of supply current per amplifier.
The power supply operating range of the EL2244C/EL2444C is from
±18V down to as little as ±2V. For single-supply operation, the
EL2244C/EL2444C operate from 36V down to as little as 2.5V. The
excellent power supply operating range of the EL2244C/EL2444C
makes them an obvious choice for applications on a single +5V or
+3V supply.
The EL2244C/EL2444C also feature an extremely wide output volt-
age swing of ±13.6V with VS = ±15V and RL = 1000. At ±5V,
output voltage swing is a wide ±3.8V with RL = 500 and ±3.2V with
RL = 150. Furthermore, for single-supply operation at +5V, output
voltage swing is an excellent 0.3V to 3.8V with RL = 500.
At a gain of +1, the EL2244C/EL2444C have a -3dB bandwidth of
120MHz with a phase margin of 50°. They can drive unlimited load
capacitance, and because of their conventional voltage-feedback
topology, the EL2244C/EL2444C allow the use of reactive or non-lin-
ear elements in their feedback network. This versatility combined with
low cost and 75mA of output-current drive make the
EL2244C/EL2444C an ideal choice for price-sensitive applications
requiring low power and high speed.
Connection Diagrams
EL2244CN/CS
Dual
EL2444CN/CS
Quad
Features
120MHz gain-bandwidth product
Unity-gain stable
Low supply current (per amplifier)
- 5.2mA at VS = ±15V
Wide supply range - ±2V to ±18V
dual-supply, 2.5V to 36V single-
supply
High slew rate - 325V/s
Fast settling - 80ns to 0.1% for a
10V step
Low differential gain - 0.04% at
AV = +2, RL = 150
Low differential phase - 0.15° at
AV = +2, RL = 150
Stable w/ unlimited capacitive load
Wide output voltage swing -
±13.6V with VS = ±15V, RL =
1000
, 3.8V/0.3V with VS = +5V,
RL = 500
Low cost, enhanced replacement
for the AD827
andLT1229/LT1230
Applications
Video amplifier
Single-supply amplifier
Active filters/integrators
High-speed sample-and-hold
High-speed signal processing
ADC/DAC buffer
Pulse/RF amplifier
Pin diode receiver
Log amplifier
Photo multiplier amplifier
Difference amplifier
Ordering Information
Part No.
Temp. Range
Package
Outline #
EL2244CN
-40°C to +85°C
8-Pin P-DIP
MDP0031
EL2244CS
-40°C to +85°C
8-Lead SO
MDP0027
EL2444CN
-40°C to +85°C
14-Pin P-DIP
MDP0031
EL2444CS
-40°C to +85°C
14-Lead SO
MDP0027
EL2444CM
-40°C to +85°C
16-Lead SOL
MDP0027
EL2244C, EL2444C
Dual/Quad Low-Power 120MHz Unity-Gain Stable Op Amp
Se
p
te
m
b
er
26
,2
00
1