1
HFA1110
750MHz, Low Distortion Unity Gain,
Closed Loop Buffer
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.
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.
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.
For military grade product please refer to the HFA1110/883
data sheet.
Pinout
HFA1110
(SOIC)
TOP VIEW
Features
Wide -3dB Bandwidth. . . . . . . . . . . . . . . . . . . . . . 750MHz
Very Fast Slew Rate. . . . . . . . . . . . . . . . . . . . . . 1300V/
s
Fast Settling Time (0.2%). . . . . . . . . . . . . . . . . . . . . . 7ns
High Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
Fixed Gain of +1
Gain Flatness (100MHz) . . . . . . . . . . . . . . . . . . . . 0.03dB
Differential Phase . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025°
Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.04%
3rd Harmonic Distortion (50MHz). . . . . . . . . . . . . . -80dBc
3rd Order Intercept (100MHz) . . . . . . . . . . . . . . . . 30dBm
Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
Video Switching and Routing
RF/IF Processors
Driving Flash A/D Converters
High-Speed Communications
Impedance Transformation
Line Driving
Radar Systems
Pin Descriptions
NAME
PIN
NUMBER
DESCRIPTION
V+
1
Positive Supply
Opt V+
2
Optional Positive Supply
NC
3
No Connection
IN
4
Input
V-
5
Negative Supply
Opt V-
6
Optional Negative Supply
NC
7
No Connection
OUT
8
Output
V+
OPT V+
NC
IN
1
2
3
4
8
7
6
5
OUT
NC
OPT V-
V-
+
-
Ordering Information
PART
NUMBER
PART
MARKING
TEMP.
RANGE (°C) PACKAGE
PKG.
DWG. #
HFA1110IB
1110IB
-40 to 85
8 Ld SOIC
M8.15
HFA1110IBZ
(Note)
1110IBZ
-40 to 85
8 Ld SOIC
(Pb-free)
M8.15
HFA1110EVAL High Speed Buffer DIP Evaluation Board
NOTE: Intersil Pb-free plus anneal products employ special Pb-free
material sets; molding compounds/die attach materials and 100%
matte tin plate termination finish, which are RoHS compliant and
compatible with both SnPb and Pb-free soldering operations. Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements of
IPC/JEDEC J STD-020.
Data Sheet
June 6, 2006
FN2944.8
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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