REF195GSZ-REEL7

Overview

The REF195GSZ-REEL7 is a precision micropower, low dropout voltage reference from the Analog Devices REF19x series. It provides a fixed 5 V output with an initial accuracy of ±2 mV and a maximum temperature coefficient of 5 ppm/°C. The device operates within a supply voltage range of 5.1 V to 15 V, drawing a maximum supply current of 45 μA. It features short-circuit protection and supports a sleep mode that reduces current consumption to 15 μA. The component is housed in an 8-lead SOIC package and is specified for operation over an industrial temperature range of −40°C to +85°C.

Feature Summary

• Utilizes patented temperature drift curvature correction circuitry and laser trimming for high stability.
• Includes a dedicated SLEEP pin to disable the output and minimize power consumption.
• Incorporates internal short-circuit protection mechanisms.
• Operates with low dropout voltage requirements relative to the supply input.

Applications

• Portable instrumentation
• Analog-to-digital (ADC) and digital-to-analog (DAC) converters
• Smart sensors
• Solar powered applications
• Loop-current-powered instruments

Procurement Notes

Verify the specific electrical grade (E, F, or G) required for your application, as performance specifications vary by grade. Confirm the package suffix matches the desired form factor. Ensure compatibility with the operating temperature range and verify that the REEL7 designation aligns with automated assembly requirements. Cross-reference the datasheet revision to ensure all parameter updates are accounted for during design validation.

Selection Notes

Select this component when a stable 5 V reference is needed with minimal quiescent current. Consider the E grade for the highest accuracy and lowest noise if budget permits. Evaluate the need for the sleep function to manage battery life in portable designs. Ensure the load current does not exceed the 30 mA limit and that the supply voltage remains within the specified dropout margins.

Part Context

This part belongs to the REF19x series of precision band gap voltage references. The series includes various nominal output voltages such as 2.048 V, 2.5 V, 3.0 V, 3.3 V, 4.096 V, and 4.5 V. The REF195 variant specifically targets the 5 V standard. Other packages available in the series include TSSOP and PDIP, though the SOIC package offers the full range of electrical grades.

Replacement Considerations

Direct substitutes within the same family include REF195GSZ and REF195GSZ-REEL. For different output voltages, consider REF194GSZ-REEL7 (4.5 V) or REF196GSZ-REEL7 (3.3 V). Verify pinout compatibility and thermal characteristics before substituting with components from other manufacturers.