REF3430MDBVTEP

Overview

The REF3430MDBVTEP is a low-drift, low-power series voltage reference from the REF34xx-EP family. It provides a fixed 3 V output with an initial accuracy of ±0.05% and a maximum temperature coefficient of 10 ppm/°C. The device operates over an extended temperature range of –55°C to 125°C and supports a load current of ±10 mA. Key electrical characteristics include a quiescent current of 95 µA maximum, a dropout voltage of 50 mV at no load, and an output noise of 3.8 µVp-p/V in the 0.1 Hz to 10 Hz band. It features a 6-pin SOT-23 package with force and sense connections.

Feature Summary

• Enhanced product reliability with controlled baseline, single assembly and fabrication sites, and extended product life cycle.
• High precision performance featuring ±0.05% initial accuracy and low temperature drift for stable signal integrity.
• Low power consumption with 95 µA maximum quiescent current and shutdown mode reducing current to under 3 µA.
• Kelvin sensing capability via separate force and sense pins to minimize PCB trace IR drop errors.

Applications

• Precision data acquisition systems
• PLC analog I/O modules
• Field transmitters
• Industrial instrumentation
• Test equipment

Procurement Notes

Verify that the specific suffix MDBVT corresponds to the standard REF3430-EP specifications regarding package type and thermal rating. Confirm the component meets the required defense or aerospace qualification standards if applicable. Ensure the ordering information matches the exact pinout and marking requirements for your design implementation.

Selection Notes

Select this component when high long-term stability and low drift are critical for system accuracy. The REF3430-EP is suitable for designs requiring a 3 V reference with minimal power draw. Consider the Kelvin connection feature if PCB layout constraints introduce significant trace resistance. Verify compatibility with downstream ADCs or DACs regarding input impedance and noise requirements.

Part Context

This part belongs to the REF34xx-EP enhanced product family designed for demanding environments. It offers pin-to-pin replacement for MAX607x and ADR34xx devices. The EP designation indicates adherence to stricter manufacturing controls and traceability compared to standard commercial variants.

Replacement Considerations

The datasheet identifies MAX607x and ADR34xx as compatible pin-to-pin replacements. Verify that substitute components meet the same extended temperature range and accuracy specifications.