REF195GRU-REEL7

Overview

The REF195GRU-REEL7 is a precision micropower voltage reference from the Analog Devices REF19x series, providing a fixed 5.00 V output. It operates with a supply current of 45 μA maximum and features a low dropout voltage design. The device includes a sleep mode that reduces supply current to 15 μa maximum. It offers high initial accuracy with a maximum drift of ±2 mV and a temperature coefficient of 5 ppm/°C maximum. Electrical specifications are maintained over an extended industrial temperature range of −40°C to +85°C.

Feature Summary

• Utilizes patented temperature drift curvature correction circuitry for high stability
• Features short-circuit protection and low dropout voltage capability
• Includes a dedicated sleep pin for power reduction in standby states
• Achieves high initial accuracy through laser trimming of thin-film resistors

Applications

• Portable instruments
• ADCs and DACs
• Smart sensors
• Solar powered applications
• Loop-current-powered instruments

Procurement Notes

Verify the specific suffix RU against official documentation to confirm package type and grade. Ensure the REEL7 designation matches required tape and reel specifications for automated assembly processes. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity before procurement.

Selection Notes

Select this component when a stable 5 V reference is required with minimal quiescent current consumption. The low dropout characteristic allows operation from supplies close to the output voltage. Consider the sleep functionality if power conservation is critical during idle periods. Verify that the operating temperature range meets the environmental requirements of the target application.

Part Context

This part belongs to the REF19x series of precision band gap voltage references. The series utilizes laser trimming and curvature correction to achieve low temperature coefficients. The REF195 variant specifically provides a 5 V nominal output. Other variants in the series offer different fixed voltages such as 2.048 V, 2.5 V, and 3.3 V.

Replacement Considerations

REF195GSZ-REEL7

FAQ

What is the function of Pin 1 and Pin 5?

Pin 1 and Pin 5 are factory test points reserved for in-package Zener zap trimming. They should remain unconnected by the user.

How does the sleep mode operate?

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