ADR381 2.048 V and 2.5 V Bandgap Voltage References

The ADR380 and ADR381 are precision 2.048 V and 2.500 V band gap voltage references featuring high accuracy, high stability, and low power consumption in a tiny footprint. Patented temperature drift curvature correction techniques minimize nonlinearity of the voltage change with temperature. The wide operating range and low power consumption make them ideal for 3 V to 5 V battery-powered applications.

The ADR380 and ADR381 are micropower, low dropout voltage (LDV) devices that provide a stable output voltage from supplies as low as 300 mV above the output voltage. They are specified over the industrial (−40°C to +85°C) temperature range. The ADR380/ADR381 are available in the tiny 3-lead SOT-23 package.

Features and Benefits
  • Initial accuracy: ±5 mV/±6 mV maximum
  • Initial accuracy error: ±0.24%/±0.24%
  • Low TCVOUT: 25 ppm/°C maximum
  • Load regulation: 70 ppm/mA
  • Line regulation: 25 ppm/V
  • Wide operating ranges
    2.4 V to 18 V for ADR380
    2.8 V to 18 V for ADR381
  • Low power: 120 μA maximum
  • High output current: 5 mA
  • Wide temperature range: −40°C to +85°C
  • Tiny 3-lead SOT-23 package with standard pinout
  • Linear Products
    Reference Designs
    Data Sheets
    Documentnote
    ADR380/ADR381: Precision Low Drift 2.048 V/2.500 V SOT-23 Voltage Reference Data Sheet (Rev. C)PDF 316 kB
    Application Notes
    Documentnote
    AN-713: The Effect of Long-Term Drift on Voltage References (Rev. 0)PDF 237 kB
    Frequently Asked Questions
    Documentnote
    Order Information
    Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
    ADR381ARTZ-R2 Production3 ld SOT-23REEL 250-40 to 85C1.211.21Y
    ADR381ARTZ-REEL7 Production3 ld SOT-23REEL 3000-40 to 85C00.78Y
    Reference Materials
    ADR380/ADR381: Precision Low Drift 2.048 V/2.500 V SOT-23 Voltage Reference Data Sheet (Rev. C) adr380
    CN0218 设计和集成文件 adr381
    CN0188 设计和集成文件 adr381
    AN-713: The Effect of Long-Term Drift on Voltage References (Rev. 0) ad580
    CN-0218:500 V共模电压电流监控器 adr381
    CN-0188: Isolated Low Side Current Monitor for Negative High Voltage Rails ad7171