HFA1110
®
Data Sheet
June 6, 2006
FN2944.8
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°
• Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.04%
• 3rd Harmonic Distortion (50MHz). . . . . . . . . . . . . . -80dBc
• 3rd Order Intercept (100MHz) . . . . . . . . . . . . . . . . 30dBm
• Pb-Free Plus Anneal Available (RoHS Compliant)
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
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.
• Video Switching and Routing
• RF/IF Processors
For military grade product please refer to the HFA1110/883
data sheet.
• Driving Flash A/D Converters
• High-Speed Communications
• Impedance Transformation
• Line Driving
Pinout
HFA1110
(SOIC)
TOP VIEW
• Radar Systems
V+
OPT V+
NC
1
2
3
4
8
7
6
5
OUT
NC
Ordering Information
PART
PART
TEMP.
PKG.
+
-
NUMBER
MARKING RANGE (°C) PACKAGE DWG. #
OPT V-
V-
HFA1110IB
1110IB
-40 to 85
-40 to 85
8 Ld SOIC M8.15
IN
HFA1110IBZ
(Note)
1110IBZ
8 Ld SOIC M8.15
(Pb-free)
HFA1110EVAL High Speed Buffer DIP Evaluation Board
Pin Descriptions
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.
PIN
NUMBER
NAME
V+
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.
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1
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