ADR370:  Precision Low Power 2.048 V SOT-23 Voltage Reference

The ADR370* is a low cost, 3-terminal (series) band gap voltage reference featuring high accuracy, high stability, and low power consumption packaged in a tiny 3-lead SOT-23 package. Precise matching ...More

ADR370:  Precision Low Power 2.048 V SOT-23 Voltage Reference

Product Description

The ADR370* is a low cost, 3-terminal (series) band gap voltage reference featuring high accuracy, high stability, and low power consumption packaged in a tiny 3-lead SOT-23 package. Precise matching and thermal tracking of on-chip components, as well as patented temperature drift curvature correction design techniques, have been employed to ensure that the ADR370 provides an accurate 2.048 V output.

This micropowered, low dropout voltage device sources or sinks up to 5 mA of load current while providing a stable 2.048 V output. The compact footprint, high accuracy, and operating range of 2.3 V to 15 V make the ADR370 ideal for use in 3 V and 5 V systems where there can be wide variations in supply voltage and a need to minimize power dissipation.

The ADR370 is offered in A and B grades; all devices are specified over the extended industrial range of −40°C to +125°C.

Applications

  • Battery-powered instrumentation
  • Portable medical instruments
  • Data acquisition systems
  • Industrial process control systems
  • Automotive

    • * Protected by U.S. Patent No. 5,969,657; other patents pending.

    Data Sheet, Rev. C, 12/07

    Features

    • Initial accuracy: ±4 mV maximum
    • Initial accuracy error: ±0.2%
    • Low TCVO
      ±50 ppm/°C maximum from −40°C to +125°C
      30 ppm/°C maximum from +25°C to +70°C
    • Load regulation: 400 μV/mA, 100 ppm/mA
    • Line regulation: 25 μV/V, 20 ppm/V
    • Wide operating range: VIN = 2.3 V to 15 V
    • Low power: 72 μA maximum
    • See Data Sheet for Additional Information

    Diagrams

    ADR370 Diagram
    Pin Configuration Diagram for ADR370

    Specifications

    Vout 2.048
    Initial Accuracy (%) 0.2
    Ref Out TC (ppm/C) 30ppm/C
    Supply Voltage Range (V) +2.3 to +15
    Supply Current (max) 72µA
    Ref Output Current (mA) 5mA
    0.1-10 Hz Noise (µV p-p) 70µV p-p
    Temp Range(s) -40 to +125
    Package SOT23
    Reference Type Series-Low Dropout

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