Diodes Menu Close
Back to Shunt References

LM4040Q

AUTOMOTIVE GRADE PRECISION MICROPOWER SHUNT VOLTAGE REFERENCES

Contact Sales

Log in or register to manage email notifications about changes to datasheets or PCNs for this part.

Description

The LM4040Q is a family of bandgap circuits designed to achieve precision micro-power voltage references of 2.5V, 3.0V 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 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 and is Automotive Grade supporting PPAPs.

Application(s)

  • Automotive Reference Voltage
  • Data Acquisition Systems

Feature(s)

  • Small packages: SOT23
  • No output capacitor required
  • Output voltage tolerance
    • LM4040BQ ±0.2% at +25°C
    • LM4040CQ ±0.5% at +25°C
    • LM4040DQ ±1% at +25°C
  • Low output noise
  • 10Hz to 10kHz... 45μVRMS
  • Wide operating current range 60μA to 15mA
  • Extended temperature range -40°C to +125°C
  • Low temperature coefficient 100 ppm/°C (max)
  • Green Molding in SOT23
  • Totally Lead-Free & Fully RoHS Compliant
  • Halogen and Antimony Free. “Green” Device
  • Automotive Grade
  • Qualified to AEC-Q100 Standards for High Reliability
  • PPAP Capable

Product Specifications

Product Parameters

Compliance (Only Automotive supports PPAP) Automotive
Qualified to AEC-Q10x Yes
ReferenceVoltage (V) 2.5 - 5 V
Accuracy (%) 1, 0.5, 0.2 %
MaximumInput Voltage (V) - V
Sink Current (mA) 15 mA
Minimum Cathode Current for Regulation Typ (µA) 60, 62 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
Operating Ambient Temperature Range (°C) -40 to 125 °C

Related Content

Packages

Technical Documents

Recommended Soldering Techniques

TN1.pdf

RoHS CofC