®
HFA1106
315MHz, Low Power, Video Operational
Amplifier with Compensation Pin
September 1998
Features
Description
• Compensation Pin for Bandwidth Limiting
The HFA1106 is a high speed, low power current feedback
operational amplifier built with Intersil’s proprietary comple-
mentary bipolar UHF-1 process. This amplifier features a
compensation pin connected to the internal high impedance
node, which allows for implementation of external clamping
or bandwidth limiting.
• Lower Lot-to-Lot Variability With External
Compensation
• High Input Impedance . . . . . . . . . . . . . . . . . . . . . . . 1MΩ
• Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . 0.02%
• Differential Phase . . . . . . . . . . . . . . . . . . 0.05 Degrees
• Wide -3dB Bandwidth . . . . . . . . . . . . . . . . . . . . 315MHz
• Very Fast Slew Rate. . . . . . . . . . . . . . . . . . . . . . 700V/µs
• Low Supply Current. . . . . . . . . . . . . . . . . . . . . . . 5.8mA
• Gain Flatness (to 100MHz) . . . . . . . . . . . . . . . . . ±0.1dB
Bandwidth limiting is accomplished by connecting a capaci-
tor (C
) and series damping resistor (R
) from pin
COMP
8 to ground. Amplifier performance for various values of
is documented in the Electrical Specifications.
COMP
C
COMP
The HFA1106 is ideal for noise critical wideband applica-
tions. Not only can the bandwidth be limited to minimize
broadband noise, the HFA1106 is optimized for lower feed-
back resistors (R = 100Ω for A = +2) than most current
F
V
feedback amplifiers. The low feedback resistor reduces the
inverting input noise current contribution to total output
noise, while reducing DC errors as well. Please see the
“Application Information” section for details.
Applications
• Noise Critical Applications
• Professional Video Processing
• Medical Imaging
Part Number Information
PART NUMBER
(BRAND)
TEMP.
RANGE ( C)
PKG.
NO.
• Video Digitizing Boards/Systems
• Radar/IF Processing
o
PACKAGE
8 Ld PDIP
8 Ld SOIC
HFA1106IP
-40 to 85
E8.3
M8.15
• Hand Held and Miniaturized RF Equipment
• Battery Powered Communications
• Flash A/D Drivers
HFA1106IB
(H1106I)
-40 to 85
HFA11XXEVAL
DIP Evaluation Board for High Speed
Op Amps
• Oscilloscopes and Analyzers
Pinout
HFA1106
(PDIP, SOIC)
TOP VIEW
NC
-IN
+IN
V-
1
2
3
4
8
7
6
5
COMP
V+
-
+
OUT
NC
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 registered trademark of Intersil Americas Inc.
File Number 3922.2
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
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