REF192GS

Overview

The REF192GSZ is a precision 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 an initial accuracy tolerance of ±0.4%. The device operates within an input voltage range of 3 V to 15 V and draws a maximum supply current of 45 μA. It features a temperature coefficient of 25 ppm/°C over the industrial temperature range of -40°C to +85°C. The output can source up to 30 mA, and it includes short-circuit protection.

Feature Summary

• Utilizes patented temperature drift curvature correction circuitry for high stability
• Incorporates laser trimming of thin-film resistors to achieve precise initial accuracy
• Features a dedicated sleep mode pin to reduce supply current significantly when inactive
• Includes built-in 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 'GSZ' corresponds to the 8-lead SOIC package and G-grade electrical specifications as defined in the official ordering guide. Confirm that the required operating conditions align with the specified industrial temperature range and input voltage limits. Ensure compatibility with the system's load requirements regarding the 30 mA output current capability.

Selection Notes

Select this component when a stable 2.5 V reference is needed with low power consumption and moderate precision. The SOIC package is suitable for surface-mount assembly. Consider the G-grade specifications if the application requires the standard performance levels outlined in the datasheet. Evaluate the need for the sleep function if power management during idle states is critical.

Part Context

The REF192GSZ belongs to the REF19x series of precision band gap voltage references. This family offers various nominal output voltages including 2.048 V, 3.0 V, 4.5 V, and 5.0 V. The series is characterized by micropower operation, low dropout voltage capabilities, and high output current drive, making it versatile for different reference voltage needs in compact designs.

Replacement Considerations

Other members of the REF19x series such as REF191, REF193, REF194, REF195, REF196, and REF198 offer different nominal output voltages but share similar architectural features. For identical 2.5 V output in alternative packages, consider REF192GPZ (PDIP) or REF192GRUZ (TSSOP). Verify that any substitute matches the required package type and electrical grade.