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ZRA250F01 Datasheet(PDF) 1 Page - Zetex Semiconductors |
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ZRA250F01 Datasheet(HTML) 1 Page - Zetex Semiconductors |
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1 / 5 page  Note: 3%, 2% and 1% tolerance devices are not recommended for new designs. Refer to ZRC250 VR Gnd DEVICE DESCRIPTION The ZRA250 uses a bandgap circuit design to achieve a precision micropower voltage reference of 2.5 volts. The device is available in small outline surface mount packages, ideal for applications where space saving is important. The ZRA250 design provides a stable voltage without an external capacitor and is stable with capacitive loads. The ZRA250 is recommended for operation between 50 µA and 5mA 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 • Small outline SOT23, SO8 and TO92 style packages. • No stabilising capacitor required • Typical TC 30ppm/°C • Typical slope resistance 0.4Ω • ± 3%, 2%,1% and 0.5% tolerance • Industrial temperature range • Operating current 50µA to 5mA • Transient response, stable in less than 10 µs • Optional extended current range APPLICATIONS • Battery powered and portable equipment. • Metering and measurement systems. • Instrumentation. • Test equipment. • Data acquisition systems. • Precision power supplies. PRECISION 2.5 VOLT MICROPOWER VOLTAGE REFERENCE ISSUE 4 - APRIL 2002 SCHEMATIC DIAGRAM ZRA250 4-232 |
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