PRECISION 2.5 VOLT LOW KNEE CURRENT
VOLTAGE REFERENCE
ZRC250
ISSUE 4 - JANUARY 2003
DEVICE DESCRIPTION
FEATURES
The ZRC250 uses a bandgap circuit design to
achieve a precision micropower voltage
reference of 2.5 volts. The device is available
in a small outline surface mount package,
ideal for applications where space saving is
important, as well as a package for through
hole requirements.
Small outline SOT23 package
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TO92 style packages
No stabilising capacitor required
Low knee current, 15µA typical
Typical TC 30ppm/°C
Typical slope resistance 0.4Ω
3, 2 and 1% tolerance
The ZRC250 design provides a stable voltage
without an external capacitor and is stable
with capacitive loads. The ZRC250 is
recommended for operation between 20µA
and 5mA and so is ideally suited to low
power and battery powered applications.
Industrial temperature range
Operating current 20µA to 5mA
Transient response, stable in less than
10µs
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.
Optional extended current range
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APPLICATIONS
Battery powered and portable
equipment.
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Instrumentation.
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Test equipment.
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SCHEMATIC DIAGRAM
V
R
Gnd
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