FN7059 Rev 2.00

Page 1 of 11

May 16, 2005

FN7059

Rev 2.00

May 16, 2005

EL2244, EL2444

Dual/Quad Low-Power 120MHz Unity-Gain Stable Op Amp

DATASHEET

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

operation at +5V, output voltage swing is an excellent 0.3V

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)

• Wide supply range - 2.5V to 36V

• High slew rate - 325V/µs

• Fast settling - 80ns to 0.1% for a 10V step

• 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

1

2

3

4

8

7

6

5

-

+

-

+

OUT

IN1-

IN1+

V-

V+

OUT2

I

N2-

IN2+

1

2

3

4

14

13

12

11

5

6

7

10

9

8

OUT1

IN1-

IN1+

V+

OUT4

IN4-

IN4+

V-

IN2+

IN2-

OUT2

I

N3+

IN3-

OUT3

-+

-

+

-+

-

+

NOT RECOMMENDED FOR NEW DESIGNS

POSSIBLE SUBSTITUTE PRODUCTS

(ISL55002, ISL55004)