REF192GSZ-REEL

Overview

The REF192GSZ-REEL is a micropower voltage reference from the Analog Devices REF19x series, housed in an 8-lead SOIC package. It provides a fixed nominal output voltage of 2.5 V with a maximum initial accuracy of ±2 mV and a temperature coefficient of 5 ppm/°C. The device operates within an extended industrial temperature range of −40°C to +85°C. Key electrical specifications include a maximum supply current of 45 μA, a sleep mode current of 15 μA, and a maximum load current capability of 30 mA.

Feature Summary

• Utilizes patented temperature drift curvature correction circuitry for high precision
• Features low dropout voltage design for operation near supply limits
• Includes a dedicated sleep pin for significant power reduction
• Incorporates short-circuit protection for enhanced reliability

Applications

• Portable instruments
• Analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
• Smart sensors
• Solar powered applications
• Loop-current-powered instruments

Procurement Notes

Verify the specific suffix 'REEL' indicates tape and reel packaging rather than tube packaging when sourcing. Confirm that the component matches the 8-lead SOIC physical outline dimensions. Ensure the ordering part number corresponds to the desired electrical grade and output tolerance specifications defined in the manufacturer's ordering guide.

Selection Notes

Select this component for designs requiring a stable 2.5 V reference with minimal quiescent current consumption. The low dropout characteristic allows operation with supply voltages close to the output level. Consider the available sleep mode functionality if power conservation during idle periods is a critical system requirement.

Part Context

This part belongs to the REF19x series of precision band gap voltage references manufactured by Analog Devices. The series utilizes laser trimming of thin-film resistors to achieve high initial accuracy. While the REF192 variant specifically targets a 2.5 V output, other members of the family provide different nominal voltages such as 2.048 V or 5.0 V.

Replacement Considerations

REF192GSZ

FAQ

What is the function of Test Pins 1 and 5?

Test Pins 1 and 5 are reserved for factory Zener zap trimming processes. Users should leave these pins unconnected to ensure proper device operation.

How does the device enter sleep mode?

Sleep mode is enabled by applying a low TTL or CMOS logic level to the SLEEP pin, which turns off the output and reduces supply current to less than 15 μA.