Apex Microtechnology VRE305 +5V Low Noise Precision Voltage Reference

Apex Microtechnology VRE305 +5V Low Noise Precision Voltage Reference is a low-cost, Zener-based precision voltage reference. The VRE305 provides ultrastable +5V output with ±0.5mV (.01%) initial accuracy. Accuracy improvement is possible by a multipoint laser compensation technique. Other improvements include warm-up drift, line regulation, and long-term stability. This makes this series accurate and stable and is housed in an 8-pin SMT or DIP package. Temperature coefficients are as low as 0.6ppm/°C over the full industrial (0°C to +70°C) or hi-rel industrial (-40°C to +85°C) temperature range.


  • +5V Output, ± 0.5mV (0.01%)
  • 0.6ppm/°C temperature drift
  • 3μVP-P (0.1-10Hz) low noise
  • 8-pin DIP or surface mount package industry-standard pinout
  • 6ppm/V typical excellent line regulation
  • Output trim capability


  • For use as a reference for 14-, 16-, or 18-bit D/A converters which require an external precision reference
  • Calibrating scale factor on high-resolution A/D converters
  • Superior performance over monolithic references


Apex Microtechnology VRE305 +5V Low Noise Precision Voltage Reference
Published: 2020-08-25 | Updated: 2022-03-11