Ultrastable +2.5V Output Voltage Reference with ±0.25mV Initial Accuracy

  • Very high accuracy – +2.5V output, ±0.25mV
  • Temperature drift – 0.6 ppm/°C
  • Low noise – 1.5µVp-p (0.1Hz-10Hz)
  • Low thermal hysteresis – 1 ppm typical
  • Output source and sink current – ±15mA
  • Excellent line regulation – 5 ppm/V typical
  • Optional noise reduction and voltage trim

 VRE3025 Data Sheet

The VRE3025 series of low cost, zener-based precision voltage references provides ultrastable +2.5V output with ±0.25mV (.01%) initial accuracy. This improvement in accuracy is made possible by a unique, proprietary multipoint laser compensation technique. The device also features a buried zener for low noise and excellent long term stability.

Temperature coefficients are as low as 0.6 ppm/°C over the full industrial (0°C to +70°C) or hi-rel industrial (-40°C to +85°C) temperature range depending on the model and grade. This series 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.

Variant Initial Error (mV) Temperature Coeff. (ppm/°C) Temp Range (°C) Package Option
VRE3025BD ±0.375 1 0 to 70 8-pin DIP KD
VRE3025BS ±0.375 1 0 to 70 8-pin Surface Mount GF
VRE3025JS ±0.250 0.6 -40 to 85 8-pin Surface Mount GF
VRE3025LS ±0.500 2 -40 to 85 8-pin Surface Mount GF