The SPX4040S-2.5 is a precision shunt voltage reference produced by Sipex Corporation. It provides a stable 2.5V output voltage with a low temperature coefficient and excellent long-term stability. This device is ideal for applications requiring a precise and stable voltage reference.

Applications:

• Precision voltage references for data acquisition systems
• Analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
• Power supply monitoring
• Instrumentation and measurement equipment
• Battery-powered devices requiring stable voltage reference
• Setpoint control in industrial applications

Features:

• Output Voltage: 2.5V ±0.5%
• Low Temperature Coefficient: 20 ppm/°C (typical)
• Operating Current: 60µA to 15mA
• Low Output Impedance: 0.2Ω (typical)
• Wide Operating Temperature Range: -40°C to +85°C
• Package: TO-92, SOIC-8 and SOT-23 packages available.
• Excellent Long-Term Stability

Benefits:

• High Accuracy: Provides a precise and reliable 2.5V voltage reference.
• Stable Output Voltage: Maintains a stable output voltage over temperature variations.
• Low Power Consumption: Minimizes power consumption in battery-powered applications.
• Easy to Use: Simple shunt regulator configuration requires only a resistor.
• Wide Operating Temperature Range: Suitable for industrial and automotive applications.
• Small Footprint: Available in small packages for space-constrained designs.

Additional Details:

The SPX4040S-2.5 is a two-terminal shunt voltage reference designed for use in a wide variety of applications. It requires an external resistor to limit the current through the device. The output voltage is determined by the internal bandgap reference. The low temperature coefficient ensures that the output voltage remains stable over a wide range of temperatures. Its low dynamic impedance enables stable operation even with varying load currents. The device is available in various packages, including TO-92, SOIC-8, and SOT-23, allowing for flexibility in circuit design. This voltage reference is frequently used in circuits where a stable 2.5V rail is needed for sensor excitation or ADC/DAC referencing.