
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
HFA1100, HFA1120
850MHz, Low Distortion Current Feedback
Operational Amplifiers
The HFA1100, 1120 are a family of high-speed, wideband,
fast settling current feedback amplifiers built with Intersil's
proprietary complementary bipolar UHF-1 process. Both
amplifiers operate with single supply voltages as low as 4.5V
(see Application Information section).
The HFA1100 is a basic op amp with uncommitted pins 1, 5,
and 8. The HFA1120 includes inverting input bias current
adjust pins (pins 1 and 5) for adjusting the output offset
voltage.
These devices offer a significant performance improvement
over the AD811, AD9617/18, the CLC400-409, and the
EL2070, EL2073, EL2030.
For Military grade product refer to the HFA1100/883,
HFA1120/883 data sheet.
The Op Amps with Fastest Edges
Features
Low Distortion (30MHz, HD2). . . . . . . . . . . . . . . . . -56dBc
-3dB Bandwidth . . . . . . . . . . . . . . . . . . . . . . . . . . 850MHz
Very Fast Slew Rate. . . . . . . . . . . . . . . . . . . . . . 2300V/
μ
s
Fast Settling Time (0.1%). . . . . . . . . . . . . . . . . . . . . 11ns
Excellent Gain Flatness
- (100MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
0.14dB
- (50MHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
±
0.04dB
High Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
Overdrive Recovery . . . . . . . . . . . . . . . . . . . . . . . . <10ns
Operates with 5V Single Supply (See AN9745)
Applications
Video Switching and Routing
Pulse and Video Amplifiers
RF/IF Signal Processing
Flash A/D Driver
Medical Imaging Systems
Related Literature
- AN9420, Current Feedback Theory
- AN9202, HFA11XX Evaluation Fixture
- AN9745, Single 5V Supply Operation
Pinouts
HFA1100
(PDIP, SOIC)
TOP VIEW
HFA1120
(SOIC)
TOP VIEW
Ordering Information
PART NUMBER
(BRAND)
TEMP.
RANGE (
o
C)
PACKAGE
PKG. NO.
HFA1100IP
-40 to 85
8 Ld PDIP
E8.3
HFA1100IB
(H1100I)
-40 to 85
8 Ld SOIC
M8.15
HFA1120IB
(H1120I)
-40 to 85
8 Ld SOIC
M8.15
HFA11XXEVAL
DIP Evaluation Board for High-Speed Op Amps
INPUT
220MHz
SIGNAL
OUTPUT
(A
V
= 2)
HFA1130
OP AMP
0ns
25ns
NC
-IN
+IN
V-
1
2
3
4
8
7
6
5
NC
V+
OUT
NC
-
+
BAL
-IN
+IN
V-
1
2
3
4
8
7
6
5
NC
V+
OUT
BAL
-
+
Data Sheet
May 1999
File Number
2945.7