LM4040-N

• SOT-23 AEC Q-100 Grades 1 and 3 available
• 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 µV_rms (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)

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.

Also available is the LM4041-N with two reverse breakdown voltage versions: adjustable and 1.2 V. See the LM4041-N data sheet (SNOS641).