PRECISION 3.3 VOLT LOW KNEE
CURRENT VOLTAGE REFERENCE
ISSUE 5 - JANUARY 2003
ZRC330
DEVICE DESCRIPTION
FEATURES
Small outline SOT23 and TO92
style packages
The ZRC330 uses a bandgap circuit design to
achieve a precision micropower voltage
reference of 3.3 volts. The device is available
in a small outline surface mount package,
ideal for applications where space saving is
important.
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No stabilising capacitor required
Low knee current, 15µA typical
Typical slope resistance 0.6Ω
± ±3%, 2% and 1%±±tolerance
Industrial temperature range
Operating current 20µA to 5mA
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The ZRC330 design provides a stable voltage
without an external capacitor and is stable
with capacitive loads. The ZRC330 is
recommended for operation between 20µA
and 5mA and so is ideally suited to low
power and battery powered applications.
APPLICATIONS
Battery powered and portable
equipment.
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Excellent performance is maintained to an
absolute maximum of 25mA, however the
rugged design and 20 volt processing allows
the reference to withstand transient effects
and currents up to 200mA. Superior
switching capability allows the device to
reach stable operating conditions in only a
few microseconds.
Metering and measurement systems.
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Instrumentation.
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Test equipment.
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Data acquisition systems.
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Precision power supplies.
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Crystal oscillators
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SCHEMATIC DIAGRAM
V
R
Gnd
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