1

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

http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999

HFA1100, HFA1120

850MHz, Low Distortion Current Feedback

Operational Amplifiers

The HFA1100, 1120 are a family of high-speed, wideband,

fast settling current feedback amplifiers built with Intersil's

proprietary complementary bipolar UHF-1 process. Both

amplifiers operate with single supply voltages as low as 4.5V

(see Application Information section).

The HFA1100 is a basic op amp with uncommitted pins 1, 5,

and 8. The HFA1120 includes inverting input bias current

adjust pins (pins 1 and 5) for adjusting the output offset

voltage.

These devices offer a significant performance improvement

over the AD811, AD9617/18, the CLC400-409, and the

EL2070, EL2073, EL2030.

For Military grade product refer to the HFA1100/883,

HFA1120/883 data sheet.

The Op Amps with Fastest Edges

Features

• Low Distortion (30MHz, HD2). . . . . . . . . . . . . . . . . -56dBc

• -3dB Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . 850MHz

• Very Fast Slew Rate . . . . . . . . . . . . . . . . . . . . . . 2300V/

µs

• Fast Settling Time (0.1%) . . . . . . . . . . . . . . . . . . . . . 11ns

• Excellent Gain Flatness

- (100MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±0.14dB

- (50MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

±0.04dB

• High Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 60mA

• Overdrive Recovery . . . . . . . . . . . . . . . . . . . . . . . . <10ns

• Operates with 5V Single Supply (See AN9745)

Applications

• Video Switching and Routing

• Pulse and Video Amplifiers

• RF/IF Signal Processing

• Flash A/D Driver

• Medical Imaging Systems

• Related Literature

- AN9420, Current Feedback Theory

- AN9202, HFA11XX Evaluation Fixture

- AN9745, Single 5V Supply Operation

Pinouts

HFA1100

(PDIP, SOIC)

TOP VIEW

HFA1120

(SOIC)

TOP VIEW

Ordering Information

PART NUMBER

(BRAND)

TEMP.

PACKAGE

PKG. NO.

HFA1100IP

-40 to 85

8 Ld PDIP

E8.3

HFA1100IB

(H1100I)

-40 to 85

8 Ld SOIC

M8.15

HFA1120IB

(H1120I)

-40 to 85

8 Ld SOIC

M8.15

HFA11XXEVAL

DIP Evaluation Board for High-Speed Op Amps

INPUT

220MHz

SIGNAL

OUTPUT

HFA1130

OP AMP

0ns

25ns

NC

-IN

+IN

V-

1

2

3

4

8

7

6

5

NC

V+

OUT

NC

-

+

BAL

-IN

+IN

V-

1

2

3

4

8

7

6

5

NC

V+

OUT

BAL

-

+

Data Sheet

May 1999

File Number

2945.7