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HFA1245 Datasheet, PDF (1/14 Pages) Intersil Corporation – Dual, 420MHz, Low Power, Video, Current Feedback Operational Amplifier with Disable | |||
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Data Sheet
HFA1245
February 1999 File Number 3682.4
Dual, 420MHz, Low Power, Video, Current
Feedback Operational Ampliï¬er with
Disable
The HFA1245 is a dual, high speed, low power current
feedback ampliï¬er built with Intersilâs proprietary
complementary bipolar UHF-1 process.
The HFA1245 features individual TTL/CMOS compatible
disable controls. When pulled low they disable the
corresponding ampliï¬er, 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 beneï¬t from this op ampâs
excellent gain ï¬atness, and good differential gain and phase
speciï¬cations.
Multiplexed A/D applications will also ï¬nd 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.
Ordering Information
TEMP.
PART NUMBER RANGE (oC)
PACKAGE
PKG.
NO.
HFA1245IP
-40 to 85 14 Ld PDIP
E14.3
HA5022EVAL
High Speed Op Amp DIP Evaluation Board
Pinout
HFA1245
(PDIP)
TOP VIEW
-IN1 1
+-
+IN1 2
DISABLE 1 3
V- 4
DISABLE 2 5
+IN2 6
+
-IN2 7
-
14 OUT1
13 NC
12 GND
11 V+
10 NC
9 NC
8 OUT2
Features
⢠Low Supply Current . . . . . . . . . . . . . . . . . 5.8mA/Op Amp
⢠High Input Impedance . . . . . . . . . . . . . . . . . . . . . . . 2Mâ¦
⢠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
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
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