1

File Number

3957.3

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

1-888-INTERSIL or 321-724-7143

HFA1103

200MHz, Video Op Amp with High Speed

Sync Stripper

The HFA1103 is a high-speed, wideband, fast settling

current feedback op amp with a sync stripping function. The

HFA1103 is a basic op amp with a modified output stage that

enables it to strip the sync from a component video signal.

The output stage has an open emitter NPN transistor that

prevents the output from going low during the sync pulse.

Removing the sync signal benefits digitizing systems

because only the active video information is applied to the

A/D converter. This enables the full dynamic range of the

A/D converter to be used to process the video signal. The

HFA1103 includes inverting input bias current adjust pins

(pins 1 and 5) for adjusting the output offset voltage.

Sync Stripper Waveforms

Application Schematic

Features

• Removes Sync Signal From Component Video

• Low Residual Sync . . . . . . . . . . . . . . . . . . . . . . 8mV (Typ)

• -3dB Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . 200MHz

• Very Fast Slew Rate . . . . . . . . . . . . . . . . . . . . . . . 600V/

µs

• Fast Settling Time (0.1%) . . . . . . . . . . . . . . . . . . . . . . 9ns

• Excellent Gain Flatness, 32MHz . . . . . . . . . . . . . .

±0.1dB

• Overdrive Recovery . . . . . . . . . . . . . . . . . . . . . . . . <12ns

Applications

• RGB Video Sync Stripping

• RGB Video Distribution Amplifier for Workstations and PC

Networks

• Video Conferencing Systems

• RGB Video Monitor Preamp

• Fiberoptic Receivers

Pinout

HFA1103

(SOIC)

TOP VIEW

Ordering Information

PART NUMBER

(BRAND)

TEMP.

PACKAGE

PKG.

NO.

HFA1103IB

(H1103I)

-40 to 85

8 Ld SOIC

M8.15

0 TO

0 TO

0 TO

+0.7V

-0.3V

+0.7V

COMPONENT (RGB)

VIDEO INPUT

HFA1103 OUTPUT

+5V

HFA1103

75

4.7K

75

750

750

75

75

2K

+

-

BAL

-IN

+IN

V-

1

2

3

4

8

7

6

5

NC

V+

OUT

BAL

-

+

V+

Data Sheet

March 1999