ZR458

PRECISION 2.45 VOLT VOLTAGE REFERENCE ISSUE 2 — FEBRUARY 1998 ZR458 FEATURES DEVICE DESCRIPTION The ZR458 uses a bandgap circuit design to achieve a precision voltage reference of 2.45 volts. The ZR458 design provides a stable voltage without an external capacitor and is stable wi th capaci tive loads. The ZR458 is recommended for operation between 2mA and 120mA. TO92 style package No stabilising capacitor required Typical TC 15ppm/°C Typical slope resistance 0.26Ω 1% tolerance Industrial temperature range (Military temperature range available on request) Operating current 2mA to 120mA Alternative package options and tolerances available Battery powered and portable equipment. Metering and measurement systems. Instrumentation. Test equipment. Data acquisition systems. APPLICATIONS SCHEMATIC DIAGRAM VR 1.25VREF Gnd 4-196 ZR458 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) E-Line, 2 pin (TO92) 500mW ELECTRICAL CHARACTERISTICS TEST CONDITIONS (Unless otherwise stated) Tamb=25°C SYMBOL PARAMETER CONDITIONS MIN VR IMIN IR TC † Reverse Breakdown Voltage Minimum Operating Current Recommended Operating Current Average Reverse Breakdown Voltage Temp. Co. Slope Resistance ZR458 ZR458A IR(min) to IR(max) 2 IR=5mA 2.43 LIMITS TYP MAX 2.45 2.47 2 120 1 V mA mA TOL. % UNITS 30 15 100 ppm/°C 50 Ω Ω RS § ZR 0.26 0.5 Reverse Dynamic I...