VRE202

2.5V, 20-Pin Precision Reference Supply

Overview

Description

VRE202 Series Precision Voltage References provide ultrastable +2.5 V outputs with ±200 µV initial accuracy and temperature coefficient as low as 0.6 ppm/°C over the full military temperature range. This improvement in accuracy is made possible by a unique, proprietary multipoint laser compensation technique. Significant improvements have been made in other performance parameters as well, including initial accuracy, warm-up drift, line regulation, and long-term stability, making the VRE202 series the most accurate and stable 2.5 V surface mount references available.

VRE202 devices are available in two operating temperature ranges, -25°C to +85°C and -55°C to +125°C, and two electrical performance grades. All devices are packaged in 20-terminal ceramic LCC packages for maximum long-term stability. “M” versions are screened for high reliability and quality.

Applications

• Precision A/D and D/A Converters
• Transducer Excitation
• Accurate Comparator Threshold Reference
• High Resolution Servo Systems
• Digital Voltmeters
• High Precision Test And Measurement Instruments

Features

• Very High Accuracy: +2.5 V Output, ±200 µV
• Extremely Low Drift: 0.6 ppm/°C (-25°C to +85°C)
• Low Warm-up Drift: 1 ppm Typical
• Excellent Stability: 6 ppm/1000 Hrs. Typical
• Excellent Line Regulation: 6 ppm/V Typical
• Hermetic 20-Terminal Ceramic LCC
• Military Processing Option

Diagram