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Product Detailed Parameters
- Description：IC VREF SHUNT 3V SOT23-3
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Cut Tape (CT)
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：3V
- Voltage - Output (Max)：-
- Current - Output：15 mA
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：TO-236-3, SC-59, SOT-23-3
- Supplier Device Package：SOT-23-3
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The LM4040CEM3-3.0+T is a precision micropower shunt voltage reference manufactured by Analog Devices Inc./Maxim Integrated. It provides a fixed reverse-breakdown output voltage of 3.000V with an initial accuracy of 0.5%. The device operates within a temperature range of -40°C to +125°C and features a maximum temperature coefficient of 100ppm/°C. It utilizes a SOT-23-3 surface-mount package and supports a shunt current range from 60μA to 15mA.
Feature Summary
- Laser-trimmed resistors ensure precise initial accuracy across multiple grades.
- Stable operation without requiring external stabilizing capacitors.
- Capable of tolerating any capacitive load while maintaining stability.
Applications
- Portable, battery-powered equipment
- Notebook computers
- Cell phones
- Industrial process controls
Procurement Notes
Verify the specific suffix '+T' indicates tape and reel packaging configuration. Confirm that the 'E' grade designation aligns with the required extended temperature range specifications for your application environment. Ensure compatibility with lead-free/RoHS-compliant manufacturing processes as indicated by the '+' suffix in the ordering information.
Selection Notes
Select this component when a stable 3.000V reference is needed in space-constrained designs using the SOT-23-3 package. Consider the 0.5% initial accuracy and 100ppm/°C temperature coefficient against system tolerance requirements. Evaluate the 60μA minimum operating current to ensure proper biasing conditions are met during low-power states.
Part Context
This part belongs to the LM4040 family of improved precision micropower shunt voltage references. The series offers various fixed reverse-breakdown voltages including 2.048V, 2.500V, 3.3V, 4.096V, and 5.000V. Different letter codes denote varying accuracy grades and temperature ranges within the same functional architecture.
Replacement Considerations
LM4040CEM3-3.0/V+T is an automotive-qualified alternative within the same series.
FAQ
Does the LM4040CEM3-3.0+T require an external capacitor for stability?
No, the device does not require an external stabilizing capacitor and is guaranteed stable with any capacitive load.
What is the pin configuration for the SOT-23-3 package?
Pin 1 is the positive terminal, Pin 2 is the negative terminal, and Pin 3 is no connection (N.C.). Pin 3 must be left unconnected or connected to Pin 2.
