EL2150CEL2157C

125 MHz Single Supply Clamping Op Amps

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

1995 Elantec Inc

Features

g

5V Applications

 Power Down to 0 mA (EL2157C)

 Output Voltage Clamp

(EL2157C)

 Large Input Comon Mode Range

 Output Swings to Ground

Without Saturating

(PDIP and SO Packages)

Applications

 Video Amplifier

 PCMCIA Applications

 AD Driver

 Line Driver

 Portable Computers

 High Speed Communications

 RGB Applications

 Broadcast Equipment

 Active Filtering

Ordering Information

Part No

Temp Range

Package

Outline

MDP0031

EL2150CS

b

MDP0027

MDP0038

MDP0031

EL2157CS

b

MDP0027

See

Ordering

Information

section

of

databook

General Description

The EL2150CEL2157C are the electronics industry’s fastest

single supply op amps available Prior single supply op amps

have generally been limited to bandwidths and slew rates

that of the EL2150CEL2157C

The 125 MHz bandwidth

275 V

ms slew rate and 005%005 differential gaindifferen-

tial phase makes this part ideal for single or dual supply video

speed applications With its voltage feedback architecture this

amplifier can accept reactive feedback networks allowing them

to be used in analog filtering applications The inputs can sense

signals below the bottom supply rail and as high as 12V below

the top rail Connecting the load resistor to ground and operat-

ing from a single supply the outputs swing completely to

ground without saturating The outputs can also drive to within

mA and will operate with single supply voltages as low as 27V

making it ideal for portable low power applications

The EL2157C has a high speed disable feature Applying a low

logic level to this pin reduces the supply current to 0

mA within

50 ns This is useful for both multiplexing and reducing power

consumption

The EL2157C also has an output voltage clamp feature This

output voltage from going above the preset clamp voltage This

feature is desirable for AD applications as AD converters can

require long times to recover if overdriven

For applications where board space is critical the EL2150C is

available in the tiny 5 lead SOT23 package which has a foot-

print 28% the size of an 8 lead SOIC The EL2150CEL2157C

are also both available in 8 pin plastic DIP and SOIC packages

All parts operate over the industrial temperature range of

b

the factory

Connection Diagrams

EL2150C

EL2157C

EL2150C

SO P-DIP

SO P-DIP

SOT23-5

2150 – 3

2150 – 2

2150 – 1

Top View

Top View

Top View