REF192FSZ-REEL

Overview

The REF192FSZ-REEL7 is a micropower voltage reference from the Analog Devices REF19x series, housed in an 8-lead SOIC package. It provides a nominal output voltage of 2.5 V with an initial accuracy of ±0.08% and a maximum temperature coefficient of 5 ppm/°C. The device operates within an extended industrial temperature range of -40°C to +85°C. Key electrical specifications include a maximum supply current of 45 μA, a maximum short-circuit current of 30 mA, and a maximum input voltage of 18 V.

Feature Summary

• Features patented temperature drift curvature correction circuitry for high stability.
• Includes a dedicated sleep mode pin to reduce supply current significantly.
• Provides internal short-circuit protection for enhanced reliability.
• Utilizes laser trimming of thin-film resistors to achieve precise initial accuracy.

Applications

• Portable instruments
• Analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)
• Smart sensors
• Solar powered applications

Procurement Notes

Verify the specific suffix 'FSZ' corresponds to the 8-lead SOIC package and tape-and-reel packaging configuration. Confirm that the component meets RoHS compliance standards as indicated by the manufacturer documentation. Ensure the ordering part number matches the required electrical grade and output voltage tolerance specifications for the intended design.

Selection Notes

Select this component when a stable 2.5 V reference is required with low power consumption. The 5 ppm/°C temperature coefficient makes it suitable for precision measurement systems. Consider the 8-lead SOIC package dimensions for PCB layout constraints. Evaluate the need for the sleep function if battery life optimization is critical for the application.

Part Context

This part belongs to the REF19x series of precision band gap voltage references manufactured by Analog Devices Inc. The series includes various output voltages such as 2.048 V, 3.0 V, 4.5 V, 5.0 V, and 3.3 V. The REF192 variant specifically targets the 2.5 V output requirement within this family of micropower devices.

Replacement Considerations

REF192ESZ-REEL7

FAQ

What is the purpose of Test Pins 1 and 5 on the REF192FSZ?

Test Pins 1 and 5 are reserved for factory Zener zap trimming during manufacturing. Users should leave these pins unconnected to ensure proper operation.

How does the REF192FSZ operate in sleep mode?

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