REF02CSZ-REEL7

Overview

The REF02CSZ-REEL7 is a series voltage reference integrated circuit manufactured by Analog Devices Inc., housed in an 8-SOIC surface-mount package. It provides a fixed output voltage of 5V with an initial accuracy tolerance of ±1%. The device operates within an input voltage range of 8V to 36V and draws a supply current of 1.6mA. Key electrical characteristics include a temperature coefficient of 65ppm/°C and low noise performance of 15µVp-p from 0.1Hz to 10Hz. It supports a maximum output current of 10mA and functions reliably across a working temperature range of -40°C to 85°C.

Feature Summary

• Provides a stable, fixed 5V output suitable for precision analog circuits
• Features low noise performance with specified peak-to-peak noise values
• Operates over a wide input voltage range up to 36V
• Designed for surface-mount assembly in compact 8-SOIC packages

Applications

• Precision data acquisition systems requiring stable reference voltages
• Analog-to-digital converter (ADC) reference inputs
• Calibration equipment and test instruments
• Sensor signal conditioning circuits

Procurement Notes

Verify the specific suffix REEL7 indicates tape-and-reel packaging when ordering. Confirm that the ±1% accuracy class meets your system requirements, as other variants like REF02B or REF02A offer tighter tolerances. Ensure the 8-SOIC footprint matches your PCB layout constraints. Check for any recent Product Change Notices regarding manufacturing site transfers or material updates before finalizing procurement plans.

Selection Notes

Select this component when a 5V reference is required with moderate accuracy and low noise. Compare against REF02AZ for higher precision or REF02HSZ for lower temperature coefficients if environmental stability is critical. Consider the 10mA output capability for driving multiple loads without external buffering. Evaluate the 65ppm/°C drift against thermal variations in the application environment.

Part Context

This part belongs to the REF02 family of three-terminal series voltage references from Analog Devices. The family includes various accuracy grades and package options, such as ceramic DIP and plastic SOIC. The REF02 series is designed to replace older zener-based references, offering improved stability and lower noise. The CSZ suffix denotes the specific accuracy grade and RoHS-compliant lead-free finish.

Replacement Considerations

Direct pin-compatible replacements within the same package include REF02BISZ-REEL7 for tighter accuracy or REF02AISZ-REEL7 for even higher precision. For non-pin-compatible but functionally similar alternatives, consider the ADR series. Verify that any substitute maintains the 5V output and sufficient output current for the load.