ZRA245A01

PRECISION 2.45 VOLT VOLTAGE REFERENCE ISSUE 3 — MARCH 1998 ZRA245 FEATURES DEVICE DESCRIPTION The ZRA245 uses a bandgap circuit design to achieve a precision voltage reference of 2.45 volts. The device is available in small outline surface mount packages, ideal for a p pl i c a t i on s whe re s pac e s av i ng i s important. The ZRA245 design provides a stable voltage without an external capacitor and is stable with capacitive loads. The ZRA245 is recommended for operation between 2mA and 120mA. Small outline SOT23, SO8 and TO92 style package No stabilising capacitor required Typical TC 15ppm/°C Typical slope resistance 0.26Ω ± 3% , 2% and 1% tolerance Industrial temperature range Operating current 2mA to 120mA APPLICATIONS Battery powered and portable equipment. Metering and measurement systems. Instrumentation. Test equipment. Data acquisition systems. Precision power supplies. SCHEMATIC DIAGRAM VR 1.25VREF Gnd 4-227 ZRA245 ABSOLUTE MAXIMUM RATING Reverse Current Forward Current Operating Temperature Storage Temperature 200mA 25mA -40 to 85°C -55 to 125°C Power Dissipation (Tamb=25°C) SOT23 330mW E-Line, 3 pin (TO92) 500mW E-Line, 2 pin (TO92) 500mW SO8 625mW ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25°C SYMBOL PARAMETER CONDITIONS MIN VR Reverse Breakdown Voltage IR=5mA 2.43 2.40 2.38 LIMITS TYP MAX 2.45 2.47 2.45 2.50 2.45 2.52 2 2 120 1 2 3 V TOL. % UNITS IMIN IR TC † RS § ZR Minimum Operating Curr...