HIFA1114 Datasheet, PDF (1/5 Pages) Intersil Corporation – 850MHz Video Cable Driving Buffer

September 2004
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HFA1114
850MHz Video Cable Driving Buffer
Features
Description
• Access to Summing Node Allows Circuit Customization
• User Programmable For Closed-Loop Gains of +1, -1
or +2 Without Use of External Resistors
• Wide -3dB Bandwidth . . . . . . . . . . . . . . . . . . . . 850MHz
• Very Fast Slew Rate . . . . . . . . . . . . . . . . . . . . 2400V/µs
• Fast Settling Time (0.1%) . . . . . . . . . . . . . . . . . . . 11ns
• High Output Current . . . . . . . . . . . . . . . . . . . . . . . 60mA
• Excellent Gain Accuracy . . . . . . . . . . . . . . . . . . 0.99V/V
• Overdrive Recovery . . . . . . . . . . . . . . . . . . . . . . . <10ns
• Standard Operational Amplifier Pinout
Applications
• RF/IF Processors
• Driving Flash A/D Converters
• High Speed Communications
• Impedance Transformation
The HFA1114 is a closed loop Buffer featuring user
programmable gain and ultra high speed performance.
Manufactured on Intersil’ proprietary complementary bipolar
UHF-1 process, the HFA1114 offers a wide -3dB bandwidth
of 850MHz, very fast slew rate, excellent gain flatness, low
distortion 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 applications requiring a standard buffer pinout, please
refer to the HFA1110 datasheet.
Part # Information
• Line Driving
• Video Switching and Routing
• Radar Systems
• Medical Imaging Systems
PART NUMBER TEMP. RANGE
(BRAND)
(^oC)
PACKAGE
PKG.
NO.
HFA1114IB
(H1114I)
-40 to 85 8 Ld SOIC
M8.15
HFA11XXEVAL
DIP Evaluation Board for High Speed
Op Amps
Pinout
HFA1114 (SOIC)
TOP VIEW
NC 1
300
300
-IN 2
-
+
+IN 3
V- 4
8 NC
7 V+
6 OUT
5 SN
Pin Descriptions
NAME
NC
-IN
+IN
V-
SN
OUT
V+
PIN
NUMBER
1, 8
2
3
4
5
6
7
DESCRIPTION
No Connection
Inverting Input
Non-Inverting Input
Negative Supply
Summing Node
Output
Positive Supply
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2002., 2004All Rights Reserved
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