LM4040CIM7-2.0/NOPB Precision Micropower Shunt Voltage Reference

The LM4040CIM7-2.0/NOPB from Texas Instruments is a high-precision, micropower shunt voltage reference, offering excellent stability and accuracy for precision applications. This fixed-voltage reference operates at a nominal voltage of 2.0 Volts, with a ±0.1% initial accuracy for the A grade version.

Designed for space-constrained and power-sensitive applications, the LM4040 comes in a small SOT-23 package, making it an ideal choice for portable and battery-powered equipment. The device requires no external capacitors for operation and offers a low dynamic impedance, ensuring stable reverse breakdown voltage accuracy over a wide range of operating conditions, including temperature and load variations.

The NOPB designation in the part number indicates that this device is lead-free (Pb-free) and RoHS compliant, making it suitable for use in environmentally sensitive applications and those that require adherence to strict regulatory standards regarding hazardous substances.

Key features of the LM4040CIM7-2.0/NOPB include:

• Fixed 2.0V output with high accuracy
• Low temperature coefficient: typically 100 ppm/°C
• Wide operating current range from 60 µA to 15 mA
• Low output noise for precision applications
• Stable with capacitive loads
• Industrial temperature range: −40°C to 85°C

Applications for this voltage reference include:

• Portable, battery-powered equipment
• Data acquisition systems
• Instrumentation and test equipment
• Automotive electronics
• Power supply monitoring

With its combination of features, the LM4040CIM7-2.0/NOPB is an excellent choice for designers looking for a reliable and precise voltage reference solution. Whether for calibration, signal conditioning, or analog-to-digital conversion, this component ensures consistent performance and simplifies system design.