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MAXIM INTEGRATED / ANALOG DEVICES LM4040CEM321T Voltage Reference Module

The LM4040CEM321T is a compact, high-accuracy bandgap voltage reference designed for space-critical applications. This micropower shunt regulator offers a stable output voltage of 3.0V with initial accuracy of 0.5% and a low temperature coefficient, ensuring precise voltage regulation over a wide temperature range. It features a 3-pin SC70 surface-mount package, no external capacitors required for stability, and a wide operating current range from 45μA to 15mA, making it ideal for portable, battery-powered, and industrial systems. The device is guaranteed to operate reliably from -40°C to +125°C, with excellent long-term stability and low output noise.

Authorized Distributors
Source:Newark
Part No:LM4040CEM3-2.1+T
Stock:1561
Inv Date:06-05-2026
Price: Unit price: $3.68
Buy/RFQ:
Source:DigiKey
Part No:LM4040CEM3-2.1+T
Stock:2109
Inv Date:06-05-2026
Price: Unit price: $3.57
Buy/RFQ:

MAXIM INTEGRATED / ANALOG DEVICES LM4040CEM321T Voltage Reference Module Specifications:

  • Output Voltage: 3.0V
  • Initial Accuracy: 0.5%
  • Temperature Coefficient: Guaranteed up to 150ppm/°C
  • Package: SC70 (3-pin surface-mount)
  • No external capacitor needed for stability
  • Operating Current Range: 45μA to 15mA
  • Reverse Breakdown Voltage: 2.997V to 3.003V at 25°C
  • Long-term Stability: 120 ppm over 1000 hours
  • Operating Temperature Range: -40°C to +125°C
  • Max Power Dissipation: Derates 2.17mW/°C above 70°C
  • Leakage Current: Min 45μA at 65μA typical
  • Reverse Dynamic Impedance: 0.3Ω to 0.9Ω
  • Low output noise: 50μV RMS from 10Hz to 10kHz

Buy the Maxim LM4040CEM321T – Reliable 3.0V Voltage Reference for Industrial Applications

Get the Maxim LM4040CEM321T voltage reference now to ensure precise, stable, and reliable voltage regulation for your industrial, portable, and battery-powered applications. This high-accuracy, low-noise component offers excellent long-term stability and does not require external capacitors, making it easy to design into space-critical systems. Guaranteed operation from -40°C to +125°C, it maintains a 3.0V output with 0.5% accuracy, ensuring your device performs consistently under varying conditions. Perfect for precision voltage regulation with minimal footprint.

Buy Maxim LM4040CEM321T now and experience unmatched voltage stability, low noise, and high temperature durability in your industrial and portable systems.

Frequently Asked Questions

Where can I buy MAXIM INTEGRATED / ANALOG DEVICES LM4040CEM321T?

You can click on the BUY or RFQ button to purchase LM4040CEM321T from an authorized MAXIM INTEGRATED / ANALOG DEVICES distributor.

How do I troubleshoot issues or seek technical support for part LM4040CEM321T?

You can download the LM4040CEM321T datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.

Who is the manufacturer of LM4040CEM321T?

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