The LM4040EIZ-2.5 is a precision shunt voltage reference manufactured by Texas Instruments (formerly National Semiconductor). It provides a stable 2.5V output voltage over a wide range of operating conditions. It is designed for applications requiring a precise and stable voltage reference, such as data acquisition systems, instrumentation, and power supplies.

Applications

• Data Acquisition Systems: Provides a stable reference voltage for analog-to-digital converters (ADCs) and digital-to-analog converters (DACs).
• Precision Instrumentation: Used in precision instruments, such as multimeters and calibrators, for accurate voltage measurements.
• Power Supplies: Provides a reference voltage for regulating the output voltage of power supplies.
• Battery-Powered Devices: Ensures stable operation of battery-powered devices by providing a consistent reference voltage.
• Current Sources: Used in precise current source circuits.

Features

• Precise 2.5V Output Voltage: Provides a highly accurate 2.5V output voltage.
• Low Temperature Coefficient: Maintains stable output voltage over a wide temperature range.
• Wide Operating Current Range: Operates with a wide range of shunt currents.
• Low Dynamic Impedance: Minimizes output voltage variations due to load changes.
• Small Package Size: Available in small packages for space-constrained applications.
• RoHS Compliant: Meets environmental standards for hazardous substance restrictions.

Benefits

• High Accuracy: Precise output voltage ensures accurate and reliable measurements.
• Stable Performance: Low temperature coefficient and dynamic impedance provide stable performance over varying conditions.
• Simplified Design: Easy to use and requires minimal external components.
• Wide Operating Range: Functions effectively in a variety of applications with different current requirements.
• Compact Size: Small package size allows for integration into space-constrained designs.

Technical Specifications

The LM4040EIZ-2.5 provides a typical output voltage of 2.5V with a tolerance of ±0.5%. The operating temperature range is typically -40°C to +85°C. The shunt current range is typically 60 μA to 15 mA. It is available in a variety of packages including TO-92, SOIC, and SOT-23.