Image shown is for reference only. Actual package may vary. Refer to the product data sheet for package details. SOT23
AUTOMOTIVE GRADE PRECISION MICROPOWER SHUNT VOLTAGE REFERENCES
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The LM4040Q is a family of bandgap circuits designed to achieve precision micro-power voltage references of 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V. The devices are available in 0.2% B-grade, 0.5% C-grade, and 1% D-grade initial tolerances.
They are available in the small-outline SOT23 surface mount package, which is ideal for applications where space is at a premium. Excellent performance is maintained over the 60μA to 15mA operating current range with a typical temperature coefficient of only 20ppm/°C. The device has been designed to be highly tolerant of capacitive loads, therefore maintaining excellent stability.
This device offers a pin-for-pin compatible alternative to the industry-standard LM4040 voltage reference for automotive applications.
The LM4040Q has been qualified to AEC-Q100 Grade 1, is PPAP capable, and manufactured in facilities certified to IATF 16949.
| Type | Shunt reference |
|---|---|
| Compliance (Only Automotive Supports PPAP) | Automotive |
| AEC Qualified | Yes |
| ReferenceVoltage (V) | 2.5, 3.0, 3,3, 4.096, 5.0 V |
| Tolerance (%) | 1, 0.5, 0.2 % |
| Sink Current (mA) | 15 mA |
| Minimum Cathode Current for Regulation Typ (µA) | 45, 47, 50, 54 µA |
| Typical Temperature Coefficient (ppm/°C) | 15, 20 ppm/°C |
| Maximum Slope Resistance (Ω) | 0.9, 1.0, 1.1 Ω |
| Noise Voltage (µV/Hz) | 35, 64, 80 µV/Hz |
