PRECISION 2.45 VOLT VOLTAGE REFERENCE
PRECISION 2.45 VOLT VOLTAGE REFERENCE
ISSUE 3 — MARCH 1998
ZRA245
FEATURES
DEVICE DESCRIPTION
The ZRA245 uses a bandga...
Description
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...
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