1

®

FN7050.1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

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EL2150, EL2157

125MHz Single Supply, Clamping Op

Amps

The EL2150 and EL2157 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 ¼ that of the EL2150 and EL2157. 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, these amplifiers 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 1.2V below the

top rail. Connecting the load resistor to ground and operating

from a single supply, the outputs swing completely to ground

without saturating. The outputs can also drive to within 1.2V

of the top rail. The EL2150 and EL2157 will output ±100mA

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

making them ideal for portable, low power applications.

The EL2157 has a high speed disable feature. Applying a

low logic level to this pin reduces the supply current to 0µA

within 50ns. This is useful for both multiplexing and reducing

power consumption.

The EL2157 also has an output voltage clamp feature. This

clamp is a fast recovery (<7ns) output clamp that prevents

the output voltage from going above the preset clamp

voltage. This feature is desirable for A/D applications, as A/D

converters can require long times to recover if overdriven.

For applications where board space is critical the EL2150 is

available in the tiny 5-pin SOT-23 package, which has a

footprint 28% the size of an 8-pin SO. The EL2150 and

EL2157 are both available in an 8-pin SO package. All parts

operate over the industrial temperature range of -40°C to

+85°C. For dual, triple, or quad applications, contact the

factory.

Features

• Specified for 3V, 5V, or ±5V applications

• Power-down to 0µA (EL2157)

• Output voltage clamp (EL2157)

• Large input common mode range

• Output swings to ground without saturating

• -3dB bandwidth = 125MHz

• ±0.1dB bandwidth = 30MHz

• Low supply current = 5mA

• Slew rate = 275V/µs

• Low offset voltage = 2mV max (SO package)

• Output current = ±100mA

• High open loop gain = 80dB

• Diff gain/phase = 0.05%/0.05°

Applications

• Video amplifiers

• PCMCIA applications

•A/D drivers

• Line drivers

• Portable computers

• High speed communications

• RGB applications

• Broadcast equipment

• Active filtering

Ordering Information

PART NUMBER

PACKAGE

TAPE & REEL PKG. DWG. #

EL2150CS

8-Pin SO

-

MDP0027

EL2150CS-T7

8-Pin SO

7”

MDP0027

EL2150CS-T13

8-Pin SO

13”

MDP0027

EL2150CW-T7

5-Pin SOT-23

7” (3K pcs)

MDP0038

EL2150CW-T7A

5-Pin SOT-23

7” (250 pcs)

MDP0038

EL2157CS

8-Pin SO

-

MDP0027

EL2157CS-T7

8-Pin SO

7”

MDP0027

EL2157CS-T13

8-Pin SO

13”

MDP0027

Data Sheet

March 12, 2004