ADR423ARMZ-REEL7

Overview

The ADR423ARMZ-REEL7 is a 3.00 V XFET voltage reference in an 8-lead MSOP package. It delivers a B-grade initial accuracy of ±1.5 mV (±0.04%) and a temperature coefficient of 3 ppm/°C across the −40°C to +125°C range. The device operates with a supply voltage from 5 V to 18 V, drawing a maximum quiescent current of 500 µA while providing up to 10 mA output current. Noise performance is rated at 2 µV p-p (0.1 Hz to 10 Hz) with long-term stability of 50 ppm per 1000 hours.

Feature Summary

• Utilizes second-generation eXtra implanted junction FET (XFET) technology for superior accuracy and thermal hysteresis compared to band gap references.
• Features a patented temperature drift curvature correction technique that minimizes nonlinearity of voltage change with temperature.
• Includes a dedicated trim terminal allowing output voltage adjustment over a ±0.5% range without compromising other performance metrics.

Applications

• Precision data acquisition systems
• High resolution converters
• Portable medical instruments

Procurement Notes

Verify the specific suffix against official documentation to confirm packaging details. Confirm the electrical grade matches system requirements, as accuracy specifications vary between A and B grades. Ensure input voltage headroom meets the minimum 2 V differential requirement relative to the 3.00 V output under all operating load conditions.

Selection Notes

Select this component when low noise and high precision are critical for signal integrity. The MSOP footprint offers a 30% size reduction compared to SOIC packages. Consider the trim pin utility if system-level calibration is required to compensate for external circuit errors without degrading temperature coefficients.

Part Context

This part belongs to the ADR42x series of ultraprecision voltage references manufactured by Analog Devices. The series includes variants with different nominal output voltages, sharing identical core XFET architecture and package options. The ARMZ suffix indicates the MSOP surface-mount package variant within the broader ADR423 product family.

Replacement Considerations

ADR423ARZ-REEL7