NTE999M

NTE999M Integrared Circuit Programmable Precision Reference Description: The NTE999M integrated circuit is a three–terminal programmable shunt regulator. This monolithic IC voltage reference operates as a low temperature coefficient zener which is programmable from Vref to 36 volts with two external resistors. This device exhibits a wide operating current range of 1.0 to 100mA with a typical dynamic impedance of 0.22Ω. The characteristics of this reference make it an excellent replacement for zener diodes in many applications such as digital voltmeters, power supplies, and op amp circuitry. The 2.5 volt reference makes it convenient to obtain a stable reference from 5.0 volt logic supplies, and since the NTE999M operates as a shunt regulator, it can be used as either a positive or negative voltage reference. Features: D Programmable Output Voltage to 36 Volts D Voltage Reference Tolerance: ±1.0% D Low Dynamic Output Impedance: 0.22Ω Typical D Sink Current Capability of 1.0 to 100mA D Equivalent Full Range Temperature Coefficient of 50ppm/°C Typical D Temperature Compensated for Operation over Full Rated Operating Temperature Range D Low Output Noise Voltage. Absolute Maximum Ratings: (TA = 0° to +70°C, unless otherwise noted.) Cathode to Anode Voltage, VKA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37V Cathode Current Range, Continuous, IK . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –...