ADR420 Ultraprecision, Low Noise, 2.048 V XFET® Voltage Reference

The ADR42x are a series of ultraprecision, second generation eXtra implanted junction FET (XFET) voltage references featuring low noise, high accuracy, and excellent long-term stability in SOIC and MSOP footprints.

Patented temperature drift curvature correction technique and XFET technology minimize nonlinearity of the voltage change with temperature. The XFET architecture offers superior accuracy and thermal hysteresis to the band gap references. It also operates at lower power and lower supply headroom than the buried Zener references.

The superb noise and the stable and accurate characteristics of the ADR42x make them ideal for precision conversion applications such as optical networks and medical equipment. The ADR42x trim terminal can also be used to adjust the out-put voltage over a ±0.5% range without compromising any other performance. The ADR42x series voltage references offer two electrical grades and are specified over the extended industrial temperature range of −40°C to +125°C. Devices have 8-lead SOIC or 30% smaller, 8-lead MSOP packages.

Applications
  • Precision data acquisition systems
  • High resolution converters
  • Battery-powered instrumentation
  • Portable medical instruments
  • Industrial process control systems
  • Precision instruments
  • Optical network control circuits
Features and Benefits
  • Chinese data sheet available
  • Low noise (0.1 Hz to 10 Hz)
    ADR420: 1.75 μV p-p
    ADR421: 1.75 μV p-p
    ADR423: 2.0 μV p-p
    ADR425: 3.4 μV p-p
  • Low temperature coefficient: 3 ppm/°C
  • Long-term stability: 50 ppm/1000 hours
  • Load regulation: 70 ppm/mA
  • Line regulation: 35 ppm/V
  • Low hysteresis: 40 ppm typical
  • Wide operating range
    ADR420: 4 V to 18 V
    ADR421: 4.5 V to 18 V
    ADR423: 5 V to 18 V
    ADR425: 7 V to 18 V
  • Quiescent current: 0.5 mA maximum
  • High output current: 10 mA
  • Wide temperature range: −40°C to +125°C
Linear Products
Data Sheets
Documentnote
ADR420/ADR421/ADR423/ADR425: Ultraprecision, Low Noise, 2.048 V/2.500 V/3.00 V/5.00 V XFET® Voltage References Data Sheet (Rev. J)PDF 544 kB
Application Notes
Documentnote
AN-713: The Effect of Long-Term Drift on Voltage References (Rev. 0)PDF 237 kB
Product Highlight
Documentnote
Frequently Asked Questions
Documentnote
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADR420ARMZ Production8 ld MSOPOTH 50-40 to 125C3.192.88Y
ADR420ARMZ-REEL7 Production8 ld MSOPREEL 1000-40 to 125C02.88Y
ADR420ARZ Production8 ld SOICOTH 98-40 to 125C3.192.88Y
ADR420ARZ-REEL7 Production8 ld SOICREEL 1000-40 to 125C02.88Y
ADR420BRZ Production8 ld SOICOTH 98-40 to 125C5.274.43Y
ADR420BRZ-REEL7 Production8 ld SOICREEL 1000-40 to 125C04.43Y
Reference Materials
ADR420/ADR421/ADR423/ADR425:高精度、低噪声、2.048 V/2.500 V/3.00 V/5.00 V XFET®基准电压源 数据手册 (Rev. H) adr420
ADR420/ADR421/ADR423/ADR425: Ultraprecision, Low Noise, 2.048 V/2.500 V/3.00 V/5.00 V XFET® Voltage References Data Sheet (Rev. J) adr420
AN-713: The Effect of Long-Term Drift on Voltage References (Rev. 0) ad580
CN-0074 adr420
CN-0073: High Accuracy, Bipolar Voltage Output Digital-to-Analog Conversion... adr420