DATASHEET
NOT RECOMMENDED FOR NEW DESIGNS
POSSIBLE SUBSTITUTE PRODUCTS
(ISL55002, ISL55004)
EL2244, EL2444
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 singlesupply 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 VS = ±15V and RL=1k.
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 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 VS = ±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 AV = +2, RL = 150
• Low differential phase - 0.15° at AV = +2, RL = 150
• Wide output voltage swing - ±13.6V with VS = ±15V,
RL = 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
EL2444
[14-PIN SO (0.150”), PDIP]
TOP VIEW
EL2244
(8-PIN SO, PDIP)
TOP VIEW
OUT1
3
V-
4
V+
5
FN7059 Rev 2.00
May 16, 2005
11 V-
5
10 IN3+
6
7
IN2-
IN2+
+
4
OUT2
6
+
12 IN4+
OUT2
IN1+
14 OUT4
V+
7
-
3
IN2-
2
8
2
IN2+
IN1-
IN1+
1
1
IN1-
OUT
-
-
+
+
+
+
-
-
13 IN4-
9
IN3-
8
OUT3
Page 1 of 11
