GENERAL DESCRIPTION
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.
   
FEATURES
    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
   
APPLICATIONS
    Precision data acquisition systems
    High resolution converters
    Battery-powered instrumentation
    Portable medical instruments
    Industrial process control systems
    Precision instruments
    Optical network control circuits