DESCRIPTION
The VRE304 is a low cost, high precision +4.5 V reference. Available in an industry standard 8-pin surface mount package, the device is ideal for upgrading systems that use lower performance references.
The device provides ultrastable +4.5 V output with ±0.45 mV (.01%) initial accuracy and a temperature coefficient of 0.6 ppm/°C. This improvement in accuracy is made possible by a unique, patented 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.

FEATURES
♦ +4.5 V Output, ± 0.450 mV (.01%)
♦ Temperature Drift: 0.6 ppm/ºC
♦ Low Noise: 3μVp-p (0.1-10Hz)
♦ Industry Standard Pinout: 8-Pin Surface Mount Package
♦ Excellent Line Regulation: 6 ppm/V Typical
♦ Output Trim Capability

APPLICATIONS
   The VRE304 is recommended for use as a reference for 14, 16, or 18 bit D/A converters which require an external precision reference. The device is also ideal for calibrating scale factor on high resolution A/D converters. The VRE304 offers superior performance over monolithic references.