REF192GRUZ

Overview

The REF192GRUZ is a micropower voltage reference from the Analog Devices REF19x series, providing a fixed nominal output of 2.5 V. It operates within an input voltage range of 3 V to 15 V and delivers a maximum output current of 30 mA while consuming only 45 μA of supply current. The device features a temperature coefficient of 25 ppm/°C over the industrial temperature range of -40°C to +85°C and exhibits low noise characteristics with a peak-to-peak value of 25 μV in the 0.1 Hz to 10 Hz bandwidth. It is housed in an 8-TSSOP surface-mount package.

Feature Summary

• Utilizes patented temperature drift curvature correction circuitry for high precision
• Includes a dedicated sleep mode pin to reduce supply current significantly
• Features short-circuit protection for enhanced operational safety
• Provides low dropout voltage capability for efficient power usage

Applications

• Portable instruments
• Analog-to-digital converters (ADCs)
• Digital-to-analog converters (DACs)
• Smart sensors
• Loop-current-powered instruments

Procurement Notes

Verify that the specific part number matches the required electrical grade and package type. Confirm compatibility with the intended operating temperature range and input voltage conditions. Ensure proper handling procedures are followed due to the sensitivity of the internal band gap reference structure.

Selection Notes

Select this component when a stable 2.5 V reference is needed with minimal power consumption. Consider the 8-TSSOP package for space-constrained designs. Evaluate the need for the sleep function if power management during idle states is critical for the application.

Part Context

This device belongs to the REF19x series of precision micropower voltage references. The series offers various output voltages and packages, including SOIC, PDIP, and TSSOP options. The GRUZ suffix indicates the specific TSSOP packaging configuration available for surface-mount assembly.

Replacement Considerations

REF192GSZ

FAQ

What is the purpose of Test Pins 1 and 5?

Test Pins 1 and 5 are factory test points reserved for in-package Zener zapping during manufacturing. Users should leave these pins unconnected.

How does the sleep mode function operate?

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