1 Features

• Qualified for Automotive Applications
• Low Temperature Drift
  • Standard Grade: 8 ppm/°C (max)
• High Accuracy
  • Standard Grade: 0.1% (max)
• Low Noise: 3 μV_PP/V
• Excellent Long-Term Stability:
  • 5 ppm/1000 hr (typ) after 1000 hours
• High Output Current: ±10 mA
• Temperature Range: –40°C to 125°C

2 Applications

• 16-Bit Data Acquisition Systems
• ATE Equipment
• Industrial Process Control
• Medical Instrumentation
• Optical Control Systems
• Precision Instrumentation

3 Description

The REF50xxA-Q1 family of devices is low-noise, low-drift, very-high precision-voltage reference. These reference devices are capable of both sinking and sourcing, and are very robust with regard to line and load changes.

Excellent temperature drift (3 ppm/°C) and high accuracy (0.05%) are achieved using proprietary design techniques. These features combined with very low noise make the REF50xxA-Q1 family of devices ideal for use in high-precision data acquisition systems.

Each reference voltage is available in a standard-grade versions. The devices are offered in SO-8 packages and are specified from –40°C to 125°C.

1. For all available packages, see the orderable addendum at the end of the data sheet.

4 Simplified Schematic