REF192FSZ

Overview

The REF192FSZ is a micropower, low dropout voltage reference from the Analog Devices REF19x series. It provides a nominal output voltage of 2.5 V with an initial accuracy of ±0.08%. The device features a maximum temperature coefficient of 5 ppm/°C and consumes a maximum supply current of 45 μA. It supports a maximum load current of 30 mA and operates within a temperature range of -40°C to +85°C. The component is housed in an 8-lead SOIC package.

Feature Summary

• Utilizes patented temperature drift curvature correction circuitry for high stability
• Includes a dedicated sleep mode pin to reduce supply current significantly
• Features short-circuit protection for enhanced reliability
• Laser trimmed using thin-film resistors to achieve precise initial accuracy

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 electrical grade (E, F, or G) required for the application, as performance specifications vary by grade. Confirm that the SOIC-8 package matches the PCB footprint. Ensure the input voltage remains within the specified limits relative to the output voltage to maintain regulation. Check for any recent product change notifications regarding manufacturing sites.

Selection Notes

Select this component when a stable 2.5 V reference is needed with minimal power consumption. The low dropout characteristic allows operation with supply voltages close to the output level. Consider the sleep functionality if power conservation during idle periods is critical. Verify that the thermal environment stays within the industrial temperature range for guaranteed specifications.

Part Context

The REF192FSZ belongs to the REF19x series of precision band gap voltage references. This family includes various output voltages such as 2.048 V, 3.0 V, 4.5 V, 5.0 V, 3.3 V, and 4.096 V. All members share similar architectural features including micropower operation and low dropout capabilities, differing primarily in their nominal output voltage and specific electrical grades.

Replacement Considerations

Direct substitutes within the same series include REF192ESZ and REF192GSZ, which offer different accuracy grades. Other REF19x variants like REF191, REF193, REF194, REF195, REF196, and REF198 provide different fixed output voltages but share the same package and general interface.