ADR4525 Ultra-Low-Noise, High-Accuracy 2.5V Voltage Reference

The ADR45xx series of 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 employs a new core topology for high accuracy, while offering industry-leading temperature stability and noise performance. The devices’ low thermally induced output voltage hysteresis and low long-term output voltage drift also improve system accuracy over time and temperature variations.

A maximum operating current of 950 μA allows the device to be used in portable equipment.

ADR45xx series references are available in a wide range of output voltages, in an SOIC package, all of which are specified over the extended industrial temperature range of -40°C to +125 °C.

APPLICATIONS
  • Precision data acquisition systems
  • High-resolution data converters
  • High-precision measurement devices
  • Industrial instrumentation
  • Medical devices
  • Automotive battery monitoring
Features and Benefits
  • Maximum temperature coefficient (TC):
    2 ppm / °C
  • Output noise (0.1 – 10 Hz):
    < 1.25 μVp-p @ 2.5 VOUT typ.
  • Initial output voltage error:
    ± 0.02% maximum
  • Input voltage range:
    3 to 15 V
  • Operating temperature:
    -40°C – +125 °C
  • Output current:
    +10 mA source / -10 mA sink
  • Low quiescent current:
    950 μA (max)
  • SOIC-8 package
Linear Products
Reference Designs
Data Sheets
Documentnote
ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550: Ultralow Noise, High Accuracy Voltage References Data Sheet (Rev. 0)PDF 993 kB
Application Notes
Documentnote
AN-1359: Low Noise, Dual-Supply Solution Using the ADP5070 for the Precision AD5761R Bipolar DAC in Single-Supply Systems (Rev. A)PDF 0.99 M
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADR4525ARZ Production8 ld SOICOTH 98-40 to 125C2.652.45Y
ADR4525ARZ-R7 Production8 ld SOICREEL 1000-40 to 125C02.45Y
ADR4525BRZ Production8 ld SOICOTH 98-40 to 125C3.953.45Y
ADR4525BRZ-R7 Production8 ld SOICREEL 1000-40 to 125C03.45Y
ADR4525WBRZ-R7 Pre-Release8 ld SOICREEL 1000-40 to 125C00Y
Reference Materials
ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550: 超低噪声、高精度基准电压源 (Rev. 0) adr4520
ADR4520/ADR4525/ADR4530/ADR4533/ADR4540/ADR4550: Ultralow Noise, High Accuracy Voltage References Data Sheet (Rev. 0) adr4520
CN0312 设计和集成文件 adg733
CN0255 设计和集成文件 adr4525
CN0370 Design & Integration Files adr4525
AN-1359: Low Noise, Dual-Supply Solution Using the ADP5070 for the Precision AD5761R Bipolar DAC in Single-Supply Systems (Rev. adp5070
CN-0255:16位、100 kSPS、单电源、低功耗数据采集系统 adr4525
CN0312:带可编程增益跨阻放大器和同步检波器的双通道色度计 adg733