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HFA1245 Datasheet(PDF) 1 Page - Intersil Corporation

Part No. HFA1245
Description  Dual, 420MHz, Low Power, Video, Current Feedback Operational Amplifier with Disable
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Maker  INTERSIL [Intersil Corporation]
Homepage  http://www.intersil.com/cda/home
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HFA1245 Datasheet(HTML) 1 Page - Intersil Corporation

 
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1
FN3682.5
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Copyright
© Intersil Corporation 1999, 2004
HFA1245
Dual, 420MHz, Low Power, Video, Current
Feedback Operational Amplifier with
Disable
The HFA1245 is a dual, high speed, low power current
feedback amplifier built with Intersil’s proprietary
complementary bipolar UHF-1 process.
The HFA1245 features individual TTL/CMOS compatible
disable controls. When pulled low they disable the
corresponding amplifier, which reduces the supply current
and forces the output into a high impedance state. This
feature allows easy implementation of simple, low power
video switching and routing systems. Component and
composite video systems also benefit from this op amp’s
excellent gain flatness, and good differential gain and phase
specifications.
Multiplexed A/D applications will also find the HFA1245
useful as the A/D driver/multiplexer.
The HFA1245 is a low power, high performance upgrade for
the popular Intersil HA5022. For a dual amplifier without
disable, in a standard 8 lead pinout, please see the HFA1205
data sheet.
Pinout
HFA1245
(PDIP)
TOP VIEW
Features
• Low Supply Current . . . . . . . . . . . . . . . . . 5.8mA/Op Amp
• High Input Impedance . . . . . . . . . . . . . . . . . . . . . . . 2M
Ω
• Low Crosstalk (5MHz) . . . . . . . . . . . . . . . . . . . . . . . -83dB
• High Off Isolation (5MHz). . . . . . . . . . . . . . . . . . . . . 65dB
• Wide -3dB Bandwidth (AV = +2) . . . . . . . . . . . . . 420MHz
• Very Fast Slew Rate . . . . . . . . . . . . . . . . . . . . . 1200V/
μs
• Gain Flatness (to 50MHz) . . . . . . . . . . . . . . . . . .
±0.11dB
• Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.02%
• Differential Phase. . . . . . . . . . . . . . . . . . . . . 0.03 Degrees
• Individual Output Enable/Disable
• Output Enable/Disable Time . . . . . . . . . . . . . 150ns/30ns
• Pin Compatible Upgrade to HA5022
Applications
• Flash A/D Drivers
• High Resolution Monitors
• Video Multiplexers
• Video Switching and Routing
• Professional Video Processing
• Video Digitizing Boards/Systems
• Multimedia Systems
•RGB Preamps
• Medical Imaging
• Hand Held and Miniaturized RF Equipment
• Battery Powered Communications
• High Speed Oscilloscopes and Analyzers
Part # Information
PART NUMBER
TEMP.
RANGE (oC)
PACKAGE
PKG.
NO.
HFA1245IP
-40 to 85
14 Ld PDIP
E14.3
HA5022EVAL
High Speed Op Amp DIP Evaluation Board
1
2
3
4
5
6
7
14
13
12
11
10
9
8
-IN1
+IN1
DISABLE 1
DISABLE 2
+IN2
-IN2
OUT2
NC
NC
NC
OUT1
GND
V+
+
-
+
-
V-
Data Sheet
July 2004
OBSOL
ETE PR
ODUCT
NO REC
OMMEN
DED RE
PLACE
MENT
contact
our Tec
hnical S
upport
Center
at
1-888-IN
TERSIL
or www
.intersi
l.com/ts
c


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