EL2021 Datasheet, PDF (1/8 Pages) Intersil Corporation – Monolithic Pin Driver

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EL2021
FN7027
Monolithic Pin Driver
The EL2021 is designed to drive
programmed voltages into difficult
loads. It has the required circuitry to be
used as the pin driver electronics in board test systems.
Capable of overpowering logic outputs, the part can
accurately drive independently set high and low levels with
programmed Slew Rates into reactive loads. It can also be
placed into high impedance to monitor the load without
having to disconnect. Previous board testers had
multiplexing schemes to reduce the number of pin drivers
required. With the small size and power consumption of the
monolithic EL2021, a driver per node with little or no
multiplexing becomes practical. Since only a few pins of
“bed-of-nails” board testers need be active at any given time,
the power-down feature saves substantial power in large
systems.
Ordering Information
PART NUMBER TEMP. RANGE
EL2021CJ
0°C to +75°C
PACKAGE
CerDIP
PKG. NO.
MDP0031
Features
• Wide range of programmable analog output levels
• 0.5 Ampere output drive with external transistors
• Programmable Slew Rate
• Low overshoot with large capacitive loads-stable with
500pF
• 3-state output
• Power-down capability
• Wide supply range
• Overcurrent sense
Applications
• Loaded circuit board testers
• Digital testers
• Programmable 4-quadrant power supplies
Block Diagram
Pinout
EL2021
(18-PIN DIP)
TOP VIEW
Truth Table
E OE DATA
V_OUT
0
0
0
V_CL
0
0
1
V_CH
0
1
X
High-Z
1
X
X
Undefined
COMMENTS
Active
Active
Third State
Power-down
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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