REF3140TDD2

Overview

The REF3140TDD2 is a series voltage reference IC manufactured by Texas Instruments, housed in a 7-pin die package. It provides a fixed output voltage of 4.096 V with an initial accuracy tolerance of ±0.2%. The device operates with a maximum shunt current of 10 mA and features a temperature coefficient of 20 ppm/°C. It supports an input voltage range up to 5.5 V and functions within an operating temperature range of -40°C to +125°C.

Feature Summary

• Provides a stable fixed output voltage of 4.096 V suitable for precision applications.
• Features low temperature drift of 20 ppm/°C for consistent performance across thermal variations.
• Designed for high reliability with extended industrial temperature operation capabilities.

Applications

• Precision analog-to-digital converter (ADC) reference sources
• Data acquisition systems requiring stable voltage benchmarks
• Industrial process control instrumentation

Procurement Notes

Verify the specific package type and pinout configuration when sourcing this die form factor component. Ensure that handling procedures account for the exposed die nature during assembly. Confirm compatibility with the target PCB design regarding thermal dissipation and electrical connections. Cross-reference the manufacturer's latest documentation for any updates to the mechanical outline or testing standards prior to final procurement decisions.

Selection Notes

Select this component when a fixed 4.096 V reference with tight initial accuracy is required. Consider the 20 ppm/°C temperature coefficient for environments with significant thermal fluctuations. Evaluate the 10 mA output current capability against the load requirements of the connected circuitry. Ensure the 5.5 V maximum input voltage aligns with the system power supply constraints.

Part Context

This part belongs to the REF31xx series of voltage references from Texas Instruments. It is designed as a cost-effective solution for applications needing a precise voltage source without the complexity of adjustable regulators. The die package offers flexibility for custom module integration where standard surface-mount packages may not fit the form factor constraints.

Replacement Considerations

Direct substitutes include other parts within the REF3140 family such as the REF3140AIDBZTG4, provided the package difference between die and SOT-23-3 is acceptable for the application design.