VRE204

4.5V, 20-Pin Precision Reference Supply

Overview

Description

VRE204 Series Precision Voltage References provide ultrastable +4.5 V outputs with up to ±0.4 mV initial accuracy and temperature coefficient as low as 0.6 ppm/°C over the full military temperature range. These references are specifically designed to be used with the Crystal Semiconductor line of successive-approximation type Analog-to-Digital Converters (ADCs). This line of ADCs sets new standards for temperature drift, which can only be as good as the external reference used. The VRE204 combined with a Crystal ADC will provide the lowest drift data conversion obtainable.

The VRE204 series is available in the military operating temperature range -55°C to +125°C, and two performance grades. All devices are packaged in 20-terminal LCC ceramic packages for maximum long-term stability. These “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: +4.5 V Output, ±0.4 mV
• Extremely Low Drift: 0.6 ppm/°C (-55°C to +125°C)
• Excellent Stability: 6 ppm/1000 Hrs. Typical
• Excellent Line Regulation: 6 ppm/V Typical
• Wide Supply Range: ±13.5 V to ±22.0 V
• Hermetic 20-terminal Ceramic LCC
• Military Processing Option

Diagram