ZR285-2.5 Datasheet | Zetex Semiconductors

PRECISION 2.5 VOLT MICROPOWER VOLTAGE REFERENCE ISSUE 5 - FEBRUARY 1998 DEVICE DESCRIPTION The ZR285 uses a bandgap circuit de si g n t o a c h i e v e a p r e c i s i on 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, as well as packages for through hole requirements. The ZR285 design provides a stable voltage without an external capacitor and is stable with capacitive loads. The ZR285 is remended for operation between 20µA and 20m A and so is ideally suited to low power and battery powered applications. Excellent performance is maintained to an absolute maximum of 30m A, however the rugged design and 20 volt processing allows the reference to wi t hst an d transi ent effects and currents up to 200m A. Superior switching capability allows the device to reach stable operating conditions in only a few microseconds. Features - - - - - - - - - - - - - - - Small outline SOT23 and SO8 packages 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 Industrial temperature range Operating current 20µA to 20m A APPLICATIONS Battery powered and portable equipment. Metering and measurement systems. Instrumentation. Test equipment. Data acquisition systems. Precision power supplies. SCHEMATIC DIAGRAM G...