ADR550 High Precision Shunt Mode Voltage Reference (5.0 V)

Designed for space-critical applications, the ADR525/ADR530/ADR550 are high precision shunt voltage references, housed in ultrasmall SC70 and SOT-23-3 packages. These references feature low temperature drift of 40 ppm/°C, an initial accuracy of better than ±0.2%, and ultralow output noise of 18 μV p-p. Portable, battery-powered equipment Automotive Power supplies Data acquisition systems Instrumentation and process control Energy measurement

Available in output voltages of 2.5 V, 3.0 V, and 5.0 V, the advanced design of the ADR525/ADR530/ADR550 eliminates the need for compensation by an external capacitor, yet the references are stable with any capacitive load. The minimum operating current increases from a mere 50 μA to a maximum of 15 mA. This low operating current and ease of use make these references ideally suited for handheld, battery-powered applications.

A trim terminal is available on the ADR525/ADR530/ADR550 to allow adjustment of the output voltage over a ±0.5% range, without affecting the temperature coefficient of the device. This feature provides users with the flexibility to trim out small system errors.

For better initial accuracy and wider temperature range, see the ADR5040/ADR5041/ADR5043/ADR5044/ADR5045 family at www.analog.com.

Applications

Features and Benefits
  • Ultracompact SC70 and SOT-23-3 packages
  • Temperature coefficient: 40 ppm/°C (maximum)
  • 2× the temperature coefficient improvement over the LM4040
  • Pin compatible with
    LM4040/LM4050
  • Initial accuracy: ±0.2%
  • Low output voltage noise: 14 μV p-p @
    2.5 V output
  • No external capacitor required
  • Operating current range: 50 μA to 15 mA
  • Industrial temperature range:
    −40°C to +85°C
Linear Products
Data Sheets
Documentnote
ADR525/ADR530/ADR550: High Precision Shunt Mode Voltage References Data Sheet (Rev. F)PDF 266 kB
Application Notes
Documentnote
AN-713: The Effect of Long-Term Drift on Voltage References (Rev. 0)PDF 237 kB
Frequently Asked Questions
Documentnote
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADR550ARTZ-REEL7 Production3 ld SOT-23REEL 3000-40 to 85C00.49Y
ADR550BRTZ-REEL7 Production3 ld SOT-23REEL 3000-40 to 85C01.21Y
Reference Materials
ADR525/ADR530/ADR550: High Precision Shunt Mode Voltage References Data Sheet (Rev. F) adr525
AN-713: The Effect of Long-Term Drift on Voltage References (Rev. 0) ad580
Precision Switchable Vout Regulator for OTP Applications adp1610