REF195GS-REEL7

Overview

The REF195GS-REEL7 is a precision micropower voltage reference from the Analog Devices REF19x series, providing a fixed 5.0 V output. It operates within an input voltage range of 5.1 V to 15 V and delivers up to 30 mA of output current while consuming a maximum supply current of 45 μA. The device features a low dropout voltage and includes short-circuit protection. It achieves high initial accuracy with a maximum temperature coefficient of 5 ppm/°C and exhibits low noise characteristics.

Feature Summary

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

Applications

• Portable instrumentation
• Analog-to-digital (ADC) and digital-to-analog (DAC) converters
• Smart sensors
• Solar powered applications
• 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 REEL7 suffix corresponds to the tape and reel packaging format needed for your assembly process. Ensure compatibility with the 8-lead SOIC package dimensions during PCB layout.

Selection Notes

Select this component when a stable 5 V reference is needed with minimal power consumption. The low dropout characteristic allows operation from supplies very close to the output voltage. Consider the available electrical grades if tighter line or load regulation is required for the specific system environment.

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 architectures and are available in 8-lead SOIC, TSSOP, and PDIP packages depending on the electrical grade.

Replacement Considerations

REF195GSZ-REEL7

FAQ

What is the function of Pin 1 and Pin 5?

Pin 1 and Pin 5 are test pins reserved for factory Zener zap trimming. They should be left 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 the supply current to less than 15 μA.