REF4132A40DBVR

Overview

The REF4132A40DBVR is a precision series voltage reference manufactured by Texas Instruments, designed for applications requiring high accuracy and stability. It provides a fixed output voltage of 4.096 V with an initial accuracy of ±0.05%. The device features a low temperature coefficient of 12 ppm/°C, ensuring minimal drift over varying thermal conditions. Operating within a supply voltage range of 3.05 V to 5.5 V, it draws a typical supply current of 100 µA. The component is housed in a compact SOT-23-5 package and supports operation across an extended temperature range from -40°C to +125°C.

Feature Summary

• Delivers high-precision fixed output voltage with ±0.05% initial accuracy
• Exhibits low temperature drift characterized by a 12 ppm/°C coefficient
• Operates efficiently with low power consumption at 100 µA supply current
• Provides stable performance across an extended industrial temperature range

Applications

• High-resolution data acquisition systems
• Precision analog-to-digital converter (ADC) references
• Medical instrumentation requiring stable voltage sources
• Industrial process control loops

Procurement Notes

Verify the specific suffix DBVR corresponds to the SOT-23-5 surface-mount package configuration. Confirm that the A-grade designation aligns with the required ±0.05% accuracy specifications for your design. Ensure the operating input voltage remains within the 3.05 V to 5.5 V range to maintain specified performance levels. Check for any recent process change notifications or obsolescence notices from the manufacturer before finalizing procurement plans.

Selection Notes

Select this component when a fixed 4.096 V reference is needed with tight tolerance requirements. The low noise characteristics make it suitable for sensitive signal chains. Consider the SOT-23-5 footprint constraints during PCB layout. Compare against other series references if higher output voltages or different accuracy grades are required. Ensure thermal management strategies account for the full operating temperature range.

Part Context

This part belongs to the REF4132 family of low-drift, low-power series voltage references. It shares architectural similarities with other members like the REF4132B30DBVR but differs in output voltage and accuracy grade. The family is designed to replace older discrete reference solutions in compact designs. It serves as a critical building block for precision measurement circuits where long-term stability is paramount.

FAQ

What is the maximum output current capability of the REF4132A40DBVR?

The datasheet specifies a maximum output current of 10 mA.

Does the REF4132A40DBVR have automotive qualification?

No, the standard REF4132A40DBVR is not AEC-Q100 qualified; the REF4132-Q1 variant holds automotive certification.