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| WS336-2.5 Features * * * * * Low temperature coefficient Guaranteed temperature stability 4mV typical 0.2 dynamic impedance 1.0% initial tolerance available Easily trimmed for minimum temperature drift Programmable Shunt Regulator Description The WS336-2.5 integrated Circuits are precision 2.5V shunt regulators. The monolithic IC voltage references operates as a low temperature coeffcient 2.5V zener with 0.2ohm dynamic impedance. A third terminal on the WS336-2.5 allow the reference voltage and temperature coefficent to be trimmed easily. WS336-2.5 are useful as a precision 2.5V low voltage reference for digital voltmeters, power supplies or op amp circuitry. The 2.5V make it convenient to obtain a stable reference from low voltage supplies. Further, since the WS336-2.5 operate as shunt regulators, they can be used as either a positive or negative voltage reference. TO-92 1 1.V-,2.V+,3.Adj Product Number WS336Z-2.5 Package TO-92 Operating Temperature 0C ~ o o 70 C Internal Block Diagram Rev. 1 WS336-2.5 Absolute Maximum Ratings Parameter Reverse Current Forward Current Operating Temperature Range KA336-2.5/B Storage Temperature Range Symbol IR IF TOPR TSTG Value 15 10 0 ~ + 70 - 60 ~ + 150 Unit mA mA C C Electrical Characteristics (0C < TA < +70C, unless otherwise specified) Parameter Reverse Breakdown Voltage Reverse Breakdown Change with Current Reverse Dynamic Impedance Temperature Stability Reverse Breakdown Change with Current Reverse Dynamic Impedance Long Term Stability In reference voltage Symbol VR VR/IR ZD STT VR/IR ZD ST Conditions TA = +25C IR = 1mA TA = +25C 400uA IR 10mA TA = +25C IR = 1mA IR = 1mA 400uA IR 10mA IR = 1mA IR = 1mA WS336-2.5 Min. 2.44 Typ. 2.49 2.6 0.2 1.8 3 0.4 20 Max. 2.54 10 1 6 12 12 Min. Typ. Max. Unit V mV mV mV ppm/Khr 2 WS336-2.5 Typical Perfomance Characteristics Figure 1. Reverse Voltage Change Figure 2. Reverse Characteristics Figure 3. Temperature Drift Figure 4. Forward Characteristics 3 |
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