HFA1110
Data Sheet
February 1999
File Number 2944.7
750MHz, Low Distortion Unity Gain,
Closed Loop Buffer
Features
• Wide -3dB Bandwidth. . . . . . . . . . . . . . . . . . . . . .750MHz
• Very Fast Slew Rate. . . . . . . . . . . . . . . . . . . . . . 1300V/µs
• Fast Settling Time (0.2%). . . . . . . . . . . . . . . . . . . . . . 7ns
• High Output Current . . . . . . . . . . . . . . . . . . . . . . . . .60mA
• Fixed Gain of +1
The HFA1110 is a unity gain closed loop buffer that achieves
-3dB bandwidth of 750MHz, while offering excellent video
performance and low distortion. Manufactured on Intersil’s
proprietary complementary bipolar UHF-1 process, the
HFA1110 also offers very fast slew rate, and high output
current. It is one more example of Intersil’s intent to enhance
its leadership position in products for high speed signal
processing applications.
• Gain Flatness (100MHz) . . . . . . . . . . . . . . . . . . . . 0.03dB
• Differential Phase . . . . . . . . . . . . . . . . . . . 0.025 Degrees
• Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.04%
• 3rd Harmonic Distortion (50MHz). . . . . . . . . . . . . . -80dBc
• 3rd Order Intercept (100MHz) . . . . . . . . . . . . . . . . 30dBm
The HFA1110’s settling time of 11ns to 0.1%, low distortion
and ability to drive capacitive loads make it an ideal flash
A/D driver.
The HFA1110 is an enhanced, pin compatible upgrade for
the AD9620, AD9630, CLC110, EL2072, BUF600 and
BUF601.
Applications
• Video Switching and Routing
• RF/IF Processors
For buffer applications requiring a standard op amp pinout,
or selectable gain (-1, +1, +2), see the HFA1112 data sheet.
For output limiting see the HFA1113 data sheet.
• Driving Flash A/D Converters
• High-Speed Communications
• Impedance Transformation
• Line Driving
For military grade product please refer to the HFA1110/883
data sheet.
Pinout
HFA1110
(SOIC)
• Radar Systems
TOP VIEW
Ordering Information
V+
OPT V+
NC
1
2
3
4
8
7
6
5
OUT
NC
PART NUMBER
(BRAND)
TEMP.
RANGE ( C)
PKG.
NO.
o
PACKAGE
8 Ld SOIC
+
-
HFA1110IB
(H1110I)
-40 to 85
M8.15
OPT V-
V-
IN
HFA1110EVAL
High Speed Buffer DIP Evaluation Board
Pin Descriptions
PIN
NAME
V+
NUMBER
DESCRIPTION
1
2
3
4
5
6
7
8
Positive Supply
Optional Positive Supply
No Connection
Input
Opt V+
NC
IN
V-
Negative Supply
Optional Negative Supply
No Connection
Output
Opt V-
NC
OUT
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
1