Features and Benefits
- Ultra-Small 3-Pin SC70 Package
- 0.1% (max) Initial Accuracy
- 25ppm/°C (max) Temperature Coefficient Guaranteed Over -40°C to +85°C Temperature Range
- Wide Operating Current Range: 60µA to 15mA
- Low 28µVRMS Output Noise (10Hz to 10kHz)
- 1.2205V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V Fixed Reverse Breakdown Voltages
- No Output Capacitors Required
- Stable with Capacitive Loads
The MAX6138 is a precision, two-terminal shunt mode, bandgap voltage reference available in fixed reverse breakdown voltages of 1.2205V, 2.048V, 2.5V, 3.0V, 3.3V, 4.096V, and 5.0V. Ideal for space-critical applications, the MAX6138 is offered in the subminiature 3-pin SC70 surface-mount package (1.8mm x 1.8mm), 50% smaller than comparable devices in SOT23 surface-mount packages.
Laser-trimmed resistors ensure precise initial accuracy. With a 25ppm/°C temperature coefficient, the device is offered in three grades of initial accuracy ranging from 0.1% to 0.5%. The MAX6138 has a 60µA to 15mA shunt-current capability with low-dynamic impedance, ensuring stable reverse breakdown voltage accuracy over a wide range of operating temperatures and currents.
The MAX6138 does not require an external stabilizing capacitor while ensuring stability with capacitive loads. The MAX6138 is a higher precision device in a smaller package than the LM4040/LM4050.
- Cell Phones
- Industrial Process Controls
- Notebook Computers
- Portable Battery-Powered Equipment
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Documentation & Resources
MAX6138 Reliability Data1/12/202333K
Measuring the Invisible with the Old5/31/2012
Precision Current-Transmitter/Source-Sink Calibrator Has Wide Compliance Range1/31/2011
Precision Current-Sink/Source Circuits Configure as Mirrors or Amplifiers11/11/2010
PWM-Controlled 4–20mA Transmitter Is Galvanically Isolated8/5/2010
Precision Current Source is Software-Programmable3/14/2005
Simple Circuit Provides +5V Gate Bias from -48V Input12/5/2002
Using a DS1802 Pushbutton Digital Potentiometer to Create an Audio Preamplifier with Attenuator3/8/2023
How to Address Reference Long-Term Drift Performance9/26/2018
Accurate DC-DC Converter Minimizes Wasted Power6/2/2003
Understanding Voltage-Reference Topologies and Specifications11/19/2001
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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