REF3330AIDBZR

Overview

The REF3330AIDBZR is a fixed-output series voltage reference IC manufactured by Texas Instruments, providing a precise 3V output. It features an initial accuracy of ±0.15% and a temperature coefficient of 30ppm/°C. The device operates within an input voltage range of 3.2V to 5.5V and draws a supply current of 8.5µA. It supports a maximum output current of 5mA and exhibits low noise of 84µVp-p from 0.1Hz to 10Hz. The component is housed in a SOT-23-3 package and functions reliably across an extended industrial temperature range of -40°C to +125°C.

Feature Summary

• Delivers high precision with ±0.15% initial accuracy and low temperature drift for stable reference performance.
• Enables battery-powered designs through ultra-low quiescent current consumption of 8.5µA.
• Ensures stability without requiring external load capacitors, simplifying circuit layout.

Applications

• Portable instrumentation and handheld devices
• Data acquisition systems requiring high accuracy
• Industrial process control loops

Procurement Notes

Verify the specific suffix 'DBZR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the 3V output voltage aligns with the target system's reference requirements. Ensure the SOT-23-3 footprint matches the PCB design constraints. Check for RoHS compliance status if environmental regulations apply to the final product deployment.

Selection Notes

Select this component when a fixed 3V reference with tight tolerance is needed. The low power consumption makes it suitable for battery-operated equipment. Consider the 5mA drive capability against the load requirements. The wide operating temperature range supports harsh industrial environments. Verify input voltage headroom stays within the specified 3.2V to 5.5V limits.

Part Context

This part belongs to the REF33xx family of precision voltage references from Texas Instruments. These devices utilize bandgap technology to provide stable outputs. The family offers various fixed voltages with similar form factors. The REF3330 specifically targets applications needing 3V precision with minimal power draw.

FAQ

Does the REF3330AIDBZR require an output capacitor for stability?

No, the REF3330 is designed to be stable with zero load capacitance, eliminating the need for external output capacitors.

What is the maximum output current capability of this device?

The device can source up to 5mA of output current while maintaining its specified performance parameters.