ADR4520 Datasheet

• Maximum temperature coefficient (TCV_OUT):
  • 0.8 ppm/°C (D grade 0°C to 70°C)
  • 1 ppm/°C (C grade 0°C to 70°C)
  • 2 ppm/°C (B grade −40°C to +125°C)
  • 4 ppm/°C (A grade −40°C to +125°C)
• Output noise (0.1 Hz to 10 Hz):
• 1 μV p-p at V_OUT of 2.048 V typical
• Initial output voltage error:
  • B, C, D grade: ±0.02% (maximum)
• Input voltage range: 3 V to 15 V
• Operating temperature:
  • A grade and B grade: −40°C to +125°C
  • C grade and D grade: 0°C to +70°C
• Output current: +10 mA source/−10 mA sink
• Low quiescent current: 950 μA (maximum)
• Low dropout voltage: 300 mV at 2 mA (V_OUT ≥ 3 V)
• 8-lead SOIC package and LCC package
• AEC-Q100 qualified for automotive applications
• Long-term drift: 8 ppm typical at 4500 hours

• Precision data acquisition systems
• High resolution data converters
• High precision measurement devices
• Industrial instrumentation
• Medical devices
• Automotive battery monitoring

The ADR4520 devices are high precision, low power, low noise voltage references featuring ±0.02% B, C, and D grade maximum initial error, excellent temperature stability, and low output noise.

This family of voltage references uses an innovative core topology to achieve high accuracy while offering industry-leading temperature stability and noise performance. The low, thermally induced output voltage hysteresis and low long-term output voltage drift of the devices also improve system accuracy over time and temperature variations.

A maximum operating current of 950 μA and a maximum low dropout voltage of 300 mV allow the devices to function very well in portable equipment.

The ADR4520 series of references are each provided in an 8-lead SOIC and are available in a wide range of output voltages, all of which are specified over the extended industrial temperature range of −40°C to +125°C.