REF196GSZ-REEL7

Overview

The REF196GSZ-REEL7 is a precision micropower voltage reference from the Analog Devices REF19x series, housed in an 8-lead SOIC package. It provides a fixed nominal output voltage of 3.3 V with a maximum initial accuracy of ±2 mV and a 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 high output current capability of 30 mA, and low dropout voltage characteristics.

Feature Summary

• Utilizes patented temperature drift curvature correction circuitry for high stability
• Features laser trimming of thin-film resistors to achieve precise initial accuracy
• Includes short-circuit protection and sleep mode functionality
• Offers low dropout voltage operation requiring minimal supply headroom

Applications

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

Procurement Notes

Verify the specific suffix 'GSZ' corresponds to the 8-lead SOIC package variant when sourcing. Confirm that the REEL7 designation indicates tape and reel packaging suitable for automated assembly processes. Ensure compatibility with standard surface-mount placement equipment and soldering profiles specified in the manufacturer's documentation.

Selection Notes

Select this component when a stable 3.3 V reference is required with strict limits on quiescent current consumption. Consider its low dropout characteristic for battery-operated systems where supply voltage may approach the output level. Evaluate the 5 ppm/°C temperature coefficient against application thermal requirements and verify the 30 mA output drive capability meets load demands.

Part Context

This part belongs to the REF19x series of precision band gap voltage references manufactured by Analog Devices. The series encompasses various fixed output voltages including 2.048 V, 2.5 V, 3.0 V, 4.5 V, 5.0 V, and 4.096 V. All variants share common architectural features such as micropower operation and low dropout performance, differentiated primarily by their nominal output voltage and available package options.

Replacement Considerations

REF196GSZ

FAQ

What is the function of Test Pins 1 and 5?

Test Pins 1 and 5 are reserved for factory Zener zap trimming during manufacturing. Users should leave these pins unconnected as their resistance values vary widely between units.

How does the device 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.