REF198FS-REEL

Overview

The REF198FS-REEL is a precision micropower voltage reference from the Analog Devices REF19x series, featuring a nominal output voltage of 4.096 V. It utilizes patented temperature drift curvature correction and laser trimming for high accuracy with an initial tolerance of ±2 mV maximum. The device operates with a low supply current of 45 μA maximum and includes a sleep mode reducing consumption to 15 μa. It supports a maximum output current of 30 mA and functions within an extended industrial temperature range of −40°C to +85°C.

Feature Summary

• Features a patented temperature drift curvature correction circuit combined with laser trimming for high stability.
• Includes a dedicated sleep mode pin that significantly reduces supply current when the output is disabled.
• Provides short-circuit protection and maintains performance over a wide operating temperature range.

Applications

• Portable instrumentation
• Analog-to-digital and digital-to-analog converters
• Smart sensors
• Solar powered applications

Procurement Notes

Verify the specific electrical grade (E, F, or G) required for your application, as specifications vary by grade. Confirm the REEL suffix indicates tape-and-reel packaging suitable for automated assembly. Ensure the input supply voltage remains within the specified dropout limits to maintain regulation. Check for any recent product change notifications regarding package or material updates.

Selection Notes

Select this component when a stable 4.096 V reference is needed in space-constrained portable designs. The low quiescent current makes it suitable for battery-operated systems where power efficiency is critical. Consider the specific accuracy grade required, as higher grades offer tighter initial tolerances and lower temperature coefficients. Verify that the load current requirements do not exceed the 30 mA limit.

Part Context

This part belongs to the REF19x series of precision band gap voltage references. The series offers various fixed output voltages including 2.048 V, 2.5 V, 3.0 V, 3.3 V, 4.5 V, and 5.0 V. All variants share similar architectural features such as micropower operation, low dropout capability, and integrated sleep functionality across SOIC, TSSOP, and PDIP packages.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.