®
HFA-0003,
HFA-0003L
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8
Ultra High Speed Comparator
S
September 1998
n
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8
8
-
1
Features
Description
• Low Propagation Delay (0003/0003L). . . . . . . . . . 2.0/2.1ns
• Low Latch Set Up Time . . . . . . . . . . . . . . . . . . . . . . . . 0.8ns
• Low Offset Voltage, Drift Coefficient . . . . . 1.0mV, 4µV/ C
• Wide Common Mode Range . . . . . . . . . . . . . . . . +5.2/-2.8V
• Low Power Dissipation . . . . . . . . . . . . . . . . . . . . . . 200mW
• Large Differential Input Resistance . . . . . . . . . . . . . . .1MΩ
• Complementary ECL Outputs; 50Ω Driving Capability
• Resistor Programmable Hysteresis with HFA-0003L
• Pin Compatible with MAX9690/9685 and AD96685
• Available in SOIC
The HFA-0003/0003L are monolithic, ultra high speed,
voltage comparators. These comparators combine a low
input offset voltage (1.0mV) with a low propagation delay
(2.0ns) to achieve a large dynamic input range. The low off-
set voltage also makes these comparators ideally suited for
high speed, precision analog-to-digital processing applica-
tions. The circuits have differential analog inputs, and pro-
vide complementary, ECL compatible (10K and 100K) logic
outputs. The outputs are capable of supplying the current
required by terminated 50Ω transmission lines. Both outputs
are open emitter structures, requiring external pull-down
resistors. The recommended circuit is 50Ω connected to -
2.0V, but any equivalent ECL termination circuit may be
used.
o
Applications
• Window Detector
• High Speed Peak Detector
• High Speed Threshold Detector
• High Speed Data Acquisition Systems
• Fiber Optic Decision Circuits
• High Speed Phase Detector
• Frequency Counter
The HFA-0003L is a latched version of the HFA-0003. The
latch function allows the HFA-0003L to operate in sample-
hold or track-hold modes, when synchronous detection is
required. The Latch Enable (LE) input can be driven by a
standard ECL gate. See the Applications section for more
information on this feature.
Part Number Information
The HFA-0003L also has an additional feature, user
programmable hysteresis. By connecting a resistor from the
HYS pin to GND the user can select up to 20mV of input
hysteresis. See the Applications section for more informa-
tion on this feature.
PART
NUMBER
TEMPERATURE
RANGE
PACKAGE
16 Lead Ceramic Sidebraze DIP
-40oC to +85oC 16 Lead Ceramic Sidebraze DIP
0oC to +75oC
10 Pin CAN
-40oC to +85oC 10 Pin CAN
HFA1-0003L-5
HFA1-0003L-9
HFA2-0003L-5
HFA2-0003L-9
HFA3-0003-5
HFA3-0003-9
HFA3-0003L-5
HFA3-0003L-9
0oC to +75oC
The HFA-0003 is pin compatible with the MAX9690, and
SP9680 while providing improved performance. The HFA-
0003L is pin compatible with the MAX9685, AD96685,
SP9685, HCMP96850, and the VC7695 while providing
improved performance.
0oC to +75oC
8 Lead Plastic DIP
-40oC to +85oC 8 Lead Plastic DIP
0oC to +75oC
-40oC to +85oC 16 Lead Plastic DIP
16 Lead Plastic DIP
Pinouts
HFA-0003 (PDIP, CDIP, SOIC)
TOP VIEW
HFA-0003L (PDIP, CDIP, 150 mil SOIC)
HFA-0003L (TO-100 CAN)
TOP VIEW
TOP VIEW
GND1
GND1
GND 2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
(DIGITAL)
V+
+IN
-IN
V-
1
2
3
4
8
7
6
5
GND 1 (DIGITAL)
GND 2 (ANALOG)
Q OUT
(DIGITAL)
(ANALOG)
NC
V+
10
GND 2
+
V+
1
9
(ANALOG)
NC
+IN
+
NC
+IN
-IN
+
Q OUT
Q OUT
2
3
8
-IN
NC
Q OUT
Q OUT
Q OUT
NC
7
LE
NC
V-
4
6
HYS
LE
5
V-
HYS
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
File Number 2749.5
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.
Copyright © Intersil Americas Inc. 2002. All Rights Reserved
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