REF195GS-REEL

Overview

The REF195GS-REEL is a precision micropower voltage reference from the Analog Devices REF19x series, providing a fixed 5.0 V output in an 8-lead SOIC package. It features a maximum temperature coefficient of 5 ppm/°C and an initial accuracy of ±2 mV. The device operates with a supply current of 45 μA maximum and supports up to 30 mA output current. It includes short-circuit protection and low dropout voltage characteristics.

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

Applications

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

Procurement Notes

Verify the specific electrical grade (E, F, or G) required for your application, as specifications such as line regulation and temperature coefficient vary by grade. Confirm that the REEL suffix matches your automated assembly requirements. Ensure compatibility with the 8-lead SOIC footprint during PCB layout.

Selection Notes

Select this component when a stable 5 V reference is needed with minimal power consumption. Consider the E grade for superior performance if cost allows, while F and G grades offer standard precision. Verify that the input supply voltage remains within the specified range to maintain low dropout operation.

Part Context

This part belongs to the REF19x series of precision band gap voltage references. The series offers various nominal output voltages including 2.048 V, 2.5 V, 3.0 V, 3.3 V, 4.096 V, 4.5 V, and 5.0 V. All variants share similar micropower and low dropout characteristics.

Replacement Considerations

REF195GSZ-REEL7

FAQ

What is the function of Pins 1 and 5?

Pins 1 and 5 are factory test points reserved for in-package Zener zapping during manufacturing. They should remain unconnected in user applications.

How does the device operate in sleep mode?

Applying a low TTL or CMOS level to the SLEEP pin turns off the output and reduces the supply current to less than 15 μA.