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September 2004
HFA1114
850MHz Video Cable Driving Buffer
Features
鈥?Access to Summing Node Allows Circuit Customization
鈥?User Programmable For Closed-Loop Gains of +1, -1
or +2 Without Use of External Resistors
鈥?Wide -3dB Bandwidth . . . . . . . . . . . . . . . . . . . . 850MHz
鈥?Very Fast Slew Rate . . . . . . . . . . . . . . . . . . . . 2400V/碌s
鈥?Fast Settling Time (0.1%) . . . . . . . . . . . . . . . . . . . 11ns
鈥?High Output Current . . . . . . . . . . . . . . . . . . . . . . . 60mA
鈥?Excellent Gain Accuracy . . . . . . . . . . . . . . . . . . 0.99V/V
鈥?Overdrive Recovery . . . . . . . . . . . . . . . . . . . . . . . <10ns
鈥?Standard Operational Amplifier Pinout
Description
The HFA1114 is a closed loop Buffer featuring user
programmable gain and ultra high speed performance.
Manufactured on Intersil鈥?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 鈥淎pplication Information鈥?/div>
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.
Applications
鈥?RF/IF Processors
鈥?Driving Flash A/D Converters
鈥?High Speed Communications
鈥?Impedance Transformation
鈥?Line Driving
鈥?Video Switching and Routing
鈥?Radar Systems
鈥?Medical Imaging Systems
Part # Information
PART NUMBER
(BRAND)
HFA1114IB
(H1114I)
HFA11XXEVAL
TEMP. RANGE
(
o
C)
-40 to 85
PACKAGE
8 Ld SOIC
PKG.
NO.
M8.15
DIP Evaluation Board for High Speed
Op Amps
Pinout
HFA1114 (SOIC)
TOP VIEW
Pin Descriptions
NAME
NC
NC
-IN
+IN
V-
1
300
2
3
4
300
8
7
6
5
NC
V+
OUT
SN
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
-IN
+IN
V-
SN
OUT
V+
-
+
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 漏 Intersil Americas Inc. 2002., 2004All Rights Reserved
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