Issue 5 - May 2006 1 www.zetex.com
© Zetex Semiconductors plc 2006
ZRB500
Precision 5V micropower voltage reference
Description
Typical application circuit
The ZRB500 uses a bandgap circuit design to
achieve a precision micropower voltage
reference of 5.0 volts. The device is available in
small outline surface mount packages, ideal for
applications where space saving is important,
as well as packages for through hole
requirements.
The ZRB500 design provides a stable voltage
without an external capacitor and is stable with
capacitive loads. The ZRB500 is recommended
for operation between 50A and 15mA and so
is ideally suited to low power and battery
powered applications.
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.
Features
• ± 3%, 2% and 1% tolerance
• Operating current 50A to 15mA
• Typical T
C
15ppm/°C
• Transient response, stable in less than 10s
• Industrial temperature range
• Small outline SOT23 and TO92 style
packages
Applications
• Battery powered and portable equipment
• Metering and measurement systems
• Instrumentation
• Test equipment
• Data acquisition systems
• Precision power supplies
V
R
Gnd
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