REF43GZ

Overview

The REF43GZ is a low power precision voltage reference providing a stable 2.5 V output independent of variations in supply voltage, load conditions or ambient temperature. It features an initial accuracy of 0.10% and a temperature coefficient of 25ppm/°C. The device utilizes zener-zap trimming for both output voltage and temperature coefficient, with a unique curvature correction circuit to reduce thermal curvature characteristic of previous bandgap references. It is housed in an 8-Pin Hermetic DIP (Q-8) package.

Feature Summary

• Provides a stable 2.5 V output independent of supply voltage, load conditions, or ambient temperature variations
• Features zener-zap trimming for output voltage and temperature coefficient to ensure tight tolerances and low thermal drift
• Incorporates a unique curvature correction circuit to reduce the thermal curvature typical of many previous bandgap references

Applications

• Reference level for 8-bit data acquisition systems
• Reference level for 10-bit data acquisition systems
• Reference level for 12-bit data acquisition systems
• Applications requiring a stable, known voltage

Procurement Notes

Verify that the component matches the specific ordering code REF43GZ, which denotes the 8-Pin Hermetic DIP package variant. Confirm the manufacturer is Analog Devices Inc. Ensure the part meets the specified RoHS status if applicable to your assembly process. Cross-reference the datasheet revision D specifications against your design requirements before procurement.

Selection Notes

Select the REF43GZ when a hermetically sealed 8-pin DIP package is required for the REF43 series. This model offers 0.10% initial accuracy and a 25ppm/°C temperature coefficient. Consider other suffixes like GS for SOIC packages if surface mount technology is preferred over through-hole mounting for your PCB layout constraints.

Part Context

The REF43GZ belongs to the REF43 family of low power precision voltage references manufactured by Analog Devices Inc. This family provides stable 2.5 V outputs suitable for various data acquisition applications. The GZ suffix specifically identifies the 8-Pin Hermetic DIP package option within this product line.

Replacement Considerations

Direct substitutes include REF43GP (Plastic DIP), REF43GS (SOIC), and REF43FZ (Hermetic DIP with higher accuracy). Verify pin compatibility and package dimensions when replacing.