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Intersil Corporation - Dual 350MHz/ Low Power Closed Loop Buffer Amplifier

Numéro de référence HFA1212
Description Dual 350MHz/ Low Power Closed Loop Buffer Amplifier
Fabricant Intersil Corporation 
Logo Intersil Corporation 





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HFA1212 fiche technique
HFA1212
September 1998
File Number 3607.4
Dual 350MHz, Low Power Closed Loop
Buffer Amplifier
The HFA1212 is a dual closed loop Buffer featuring user
programmable gain and high speed performance.
Manufactured on Intersil’s proprietary complementary
bipolar UHF-1 process, these devices offer wide -3dB
bandwidth of 350MHz, very fast slew rate, excellent gain
flatness and high output current.
A unique feature of the pinout allows the user to select a
voltage gain of +1, -1, or +2, without the use of any external
components. Gain selection is accomplished via
connections to the inputs, as described in the “Application
Information” section. The result is a more flexible product,
fewer part types in inventory, and more efficient use of board
space.
Compatibility with existing op amp pinouts provides flexibility
to upgrade low gain amplifiers, while decreasing component
count. Unlike most buffers, the standard pinout provides an
upgrade path should a higher closed loop gain be needed at
a future date. For Military product, refer to the HFA1212/883
data sheet.
Ordering Information
PART NUMBER
TEMP.
(BRAND)
RANGE (oC)
PACKAGE
HFA1212IP
-40 to 85 8 Ld PDIP
HFA1212IB
(H1212I)
-40 to 85 8 Ld SOIC
PKG.
NO.
E8.3
M8.15
Features
• Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025%
• Differential Phase . . . . . . . . . . . . . . . . . . . . 0.03 Degrees
• Wide -3dB Bandwidth (AV = +2) . . . . . . . . . . . . . . 350MHz
• Very Fast Slew Rate (AV = -1) . . . . . . . . . . . . . . 1100V/µs
• Low Supply Current . . . . . . . . . . . . . . . . . . . . 6mA/Buffer
• High Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
• Excellent Gain Accuracy . . . . . . . . . . . . . . . . . . . 0.99V/V
• User Programmable For Closed-Loop Gains of +1, -1 or
+2 Without Use of External Resistors
• Overdrive Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . 8ns
• Standard Operational Amplifier Pinout
Applications
• High Resolution Monitors
• Professional Video Processing
• Medical Imaging
• Video Digitizing Boards/Systems
• RF/IF Processors
• Battery Powered Communications
• Flash Converter Drivers
• High Speed Pulse Amplifiers
Pinout
HFA1212
(PDIP, SOIC)
TOP VIEW
OUT1 1
-IN1 2
+IN1 3
V- 4
+
+
8 V+
7 OUT2
6 -IN2
5 +IN2
1 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999

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