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.

General Description

The EL2044C is a high speed, low power, low cost monolithic opera-

tional amplifier built on Elantec's proprietary complementary bipolar

process. The EL2044C is unity-gain stable and features a 325V/µs

slew rate and 120MHz gain-bandwidth product while requiring only

5.2 mA of supply current.

The power supply operating range of the EL2044C is from ±18V

down to as little as ±2V. For single-supply operation, the EL2044C

operates from 36V down to as little as 2.5V. The excellent power sup-

ply operating range of the EL2044C makes it an obvious choice for

applications on a single +5V supply.

The EL2044C also features an extremely wide output voltage swing of

Furthermore, for single-supply operation at +5V, output voltage swing

At a gain of +1, the EL2044C has a -3dB bandwidth of 120MHz with

a phase margin of 50°. It can drive unlimited load capacitance, and

because of its conventional voltage-feedback topology, the EL2044C

allows the use of reactive or non-linear elements in its feedback net-

work. This versatility combined with low cost and 75mA of output-

current drive makes the EL2044C an ideal choice for price-sensitive

applications requiring low power and high speed.

Connection Diagram

DIP and SO Package

Features

• 120MHz -3dB bandwidth

• Unity-gain stable

• Low supply current

• Wide supply range

= ±2V to ±18V dual-supply

= 2.5V to 36V single-supply

• High slew rate = 325V/µs

• Fast settling = 80ns to 0.1% for a

10V step

• Low differential gain = 0.04% at

• Low differential phase = 0.15° at

• Stable with unlimited capacitive

load

• Wide output voltage swing

• Low cost, enhanced replacement

for the AD847 and LM6361

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 #

EL2044CN

-40°C to +85°C

8-Pin P-DIP

MDP0031

EL2044CS

-40°C to +85°C

8-Lead SO

MDP0027

EL2044C

Low Power/Low Voltage 120MHz Unity-Gain Stable Operational Amplifier