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 EL2250C/EL2450C are part of a family of the electronics indus-

tries fastest single supply op amps available. Prior single supply op

amps have generally been limited to bandwidths and slew rates to that

of the EL2250C/EL2450C. The 125MHz bandwidth, 275V/µs slew

rate, and 0.05%/0.05° differential gain/differential phase makes this

part ideal for single or dual supply video speed applications. With its

voltage feedback architecture, this amplifier can accept reactive feed-

back networks, allowing them to be used in analog filtering

applications. The inputs can sense signals below the bottom supply

rail and as high as 1.2V below the top rail. Connecting the load resistor

to ground and operating from a single supply, the outputs swing com-

pletely to ground without saturating. The outputs can also drive to

within 1.2V of the top rail. The EL2250C/EL2450C will output

±100mA and will operate with single supply voltages as low as 2.7V,

making them ideal for portable, low power applications.

The EL2250C/EL2450C are available in PDIP and SO packages in

industry standard pin outs. Both parts operate over the industrial tem-

perature range of -40°C to +85°C, and are part of a family of single

supply op amps. For single amplifier applications, see the

EL2150C/EL2157C. For dual and triple amplifiers with power down

and output voltage clamps, see the EL2257C/EL2357C.

Connection Diagrams

1

2

3

4

8

7

6

5

1

2

3

4

14

13

12

11

5

6

7

10

9

8

EL2250C

(8-Pin SO & 8-Pin PDIP)

EL2450C

(14-Pin SO & 14-Pin PDIP)

-

+

-

+

A

B

OUTA

INA-

INA+

GND

VS+

OUTB

INB-

INB+

OUTA

INA-

INA+

VS+

OUTD

IND-

IND+

GND

INB+

INB-

OUTB

INC+

INC-

OUTC

- +

-

+

- +

-

+

B

C

A

D

Features

• Specified for +3V, +5V, or ±5V

applications

• Large input common mode range

• Output swings to ground without

saturating

• -3dB bandwidth = 125MHz

• ± 0.1dB bandwidth = 30MHz

• Low supply current = 5mA (per

amplifier)

• Slew rate = 275V/µs

• Low offset voltage = 4mV max

• Output current = ±100mA

• High open loop gain = 80dB

• Differential gain = 0.05%

• Differential phase = 0.05°

Applications

• Video amplifiers

• PCMCIA applications

• A/D drivers

• Line drivers

• Portable computers

• High speed communications

• RGB printers, FAX, scanners

• Broadcast equipment

• Active filtering

Ordering Information

Part No

Package

Tape & Reel

Outline #

EL2250CN

8-Pin PDIP

-

MDP0031

EL2250CS

8-Pin SO

-

MDP0027

EL2250CS-T7

8-Pin SO

7”

MDP0027

EL2250CS-T13

8-Pin SO

13”

MDP0027

EL2450CN

14-Pin PDIP

-

MDP0031

EL2450CS

14-Pin SO

-

MDP0027

EL2450CS-T7

14-Pin SO

7”

MDP0027

EL2450CS-T13

14-Pin SO

13”

MDP0027

EL2250C, EL2450C

125MHz Single Supply Dual/Quad Op Amps