Manufacturer Analog Devices
Manufacturer Part Number ADR4533ARZ
Description VOLTAGE REFERENCE, 3.3V, %0.02, SOIC-8
Stock Code W002732
Download Technical Datasheet

The ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ ADR4550 devices are high precision, low power, low noise voltage references featuring ±0.02% 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/ADR4525/ADR4530/ADR4533/ADR4540/ ADR4550 series of references are each provided in an 8-lead SOIC package 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. The ADR4525W, available in an 8-lead SOIC package, is qualified for automotive applications.


  • Maximum temperature coefficient (TCVOUT):
  • 1 ppm/°C (C grade 0°C to +70°C)
  • 2 ppm/°C (B grade −40°C to +125°C)
  • Output noise (0.1 Hz to 10 Hz):
  • 1 μV p-p at VOUT of 2.048 V typical
  • Initial output voltage error:
  • B grade: ±0.02% (maximum)
  • Input voltage range: 3 V to 15V
  • Operating temperature:
  • A grade and B grade: −40°C to +125°C
  • C 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 (VOUT ≥ 3 V)
  • 8-lead SOIC package
  • Qualified for automotive applications
  • Long-term drift: 51 ppm typical at 4500 hours

REACH SVHC Compliance


Number of Pins




Supply Current

950 µA

Temperature Coefficient

-4.00 ppm/°C to 4.00 ppm/°C



Operating Temperature

-40.0 °C to 125 °C

Input Voltage (DC)

3.00 V to 15.0 V



Lead-Free Status

Contains Lead

Lifecycle Status


Mounting Style

Surface Mount