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HFA5251
800MHz Monolithic Pin Driver
The HFA5251 is a very high speed monolithic pin driver
solution for high performance test systems. The device will
switch at high data rates between two input voltage levels
providing variable amplitude pulses. The output impedance
is trimmed to achieve a precision 50
source for impedance
matching. Two differential ECL/TTL compatible inputs control
the operation of the HFA5251, one controlling the
V
HIGH
/V
LOW
switching and the other controlling the output’s
high-impedance state. The HFA5251’s 800MHz data rate
makes it compatible with today’s high-speed VLSI test
systems and the +7V to -2V output swing allows testing of all
common logic families.
The HFA5251 is manufactured in Intersil’s proprietary
complementary bipolar UHF-1 process. The HFA5251 is
offered in die form. Contact your local sales representative
for packaging options.
Functional Diagram
Features
High Digital Data Rate . . . . . . . . . . . . . . . . . . . . . 800MHz
Very Fast Rise/Fall Times. . . . . . . . . . . . . . . . . . . . .500ps
Wide Output Range . . . . . . . . . . . . . . . . . . . . . +7V to -2V
Precise 50
Output Impedance
High Impedance, Three-State Output Control
Applications
IC Tester Pin Electronics
Pattern Generators
Pulse Generators
Level Comparator/Translator
Pinout
HFA5251 (DIE FORM)
TRUTH TABLE FOR V
OUT
DATA
0
1
HiZ
0
V
LOW
V
HIGH
1
HiZ
HiZ
INPUT
BUFFER
INPUT
BUFFER
50
Q
Q
V
HIGH
DATA
DATA
HiZ
HiZ
V
LOW
V
OUT
V
CC2
V
EE2
-
+
-
+
DATA
DATA
HiZ
HiZ
V
HIGH
V
LOW
V
EE1
V
CC1
V
OUT
V
CC2
V
EE2
Data Sheet
September 1998
File Number
3689.4
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143
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Copyright
Intersil Corporation 1999