Product Description
Precision Micropower Shunt Voltage ReferenceDescription:Ideal for space-critical applications, the LM4040-N precision voltage reference is available in the sub-miniature SC70 and SOT-23 surface-mount package.
The advanced design of the LM4040-N eliminates the need for an external stabilizing capacitor while ensuring stability with any capacitive load, thus making the LM4040-N easy to use.
Further reducing design effort is the availability of several fixed reverse breakdown voltages: 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V.
The minimum operating current increases from 60 µA for the 2.5-V LM4040-N to 100 µA for the 10-V LM4040-N.
All versions have a maximum operating current of 15 mA.
The LM4040-N uses a fuse and Zener-zap reverse breakdown voltage trim during wafer sort to ensure that the prime parts have an accuracy of better than ±0.1% (A grade) at 25°C.
Bandgap reference temperature drift curvature correction and low dynamic impedance ensure stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents.
Features:• Small Packages: SOT-23, TO-92, and SC70• No Output Capacitor Required• Tolerates Capacitive Loads• Fixed Reverse Breakdown Voltages of 2.048 V, 2.5 V, 3 V, 4.096 V, 5 V, 8.192 V, and 10 V• Key Specifications (2.5-V LM4040-N)– Output Voltage Tolerance (A Grade, 25°C): ±0.1% (Maximum)– Low Output Noise (10 Hz to 10 kHz): 35 µVrms (Typical)– Wide Operating Current Range: 60 µA to 15 mA– Industrial Temperature Range: -40°C to +85°C– Extended Temperature Range: -40°C to +125°C– Low Temperature Coefficient: 100 ppm/°C (Maximum)Applications:• Portable, Battery-Powered Equipment• Data Acquisition Systems• Instrumentation• Process Controls• Energy Management• Product Testing• Automotives• Precision Audio Components
