REF43BZ/883C

Overview

The REF43BZ/883C is a low-power precision voltage reference providing a stable +2.5 V output, manufactured by Analog Devices Inc. It utilizes zener-breakdown adjustment and curvature correction circuitry to ensure minimal output tolerance and low thermal drift. The device operates within a supply voltage range of +4.5 V to +40 V and supports an extended industrial temperature range from -40°C to +85°C. Key electrical specifications include a maximum initial accuracy of ±0.05%, a maximum temperature coefficient of 10 ppm/°C, and a maximum power supply current of 450 µA.

Feature Summary

• Provides a stable +2.5 V output independent of supply voltage, load conditions, or ambient temperature variations
• Employs zener-breakdown adjustment and unique curvature correction circuitry for low thermal drift
• Designed for low-power applications with high precision and stability

Applications

• 8-bit, 10-bit, and 12-bit data acquisition systems
• Applications requiring a stable known voltage source
• Precision measurement instrumentation

Procurement Notes

Verify the specific suffix BZ/883C against official Analog Devices documentation to confirm military-grade packaging and qualification status. Confirm availability as the component may be subject to limited supply or special order constraints. Ensure compatibility with existing system requirements regarding package type and operating temperature range before procurement.

Selection Notes

Select this component for designs requiring a precise 2.5 V reference with low power consumption. Note that the REF43 series is generally not recommended for new designs; evaluate alternative modern references if applicable. Verify that the ±0.05% initial accuracy and 10 ppm/°C temperature coefficient meet the specific system precision requirements.

Part Context

The REF43BZ/883C belongs to the REF43 family of precision voltage references produced by Analog Devices. This series is characterized by its use of zener-breakdown technology rather than standard bandgap references, offering superior performance in terms of noise and long-term stability. The /883C suffix typically indicates a military-grade version with specific screening and reliability standards.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Analog Devices cross-reference guides for potential alternatives.