ADR827:  1.25V Low Power, Precision Reference and Op Amp

The ADR821/ADR827 offer a combination of precision voltage reference and op amp in a 10-lead mini small outline package (MSOP). The reference and the op amp can be operated independently, offering the ...More

ADR827:  1.25V Low Power, Precision Reference and Op Amp

Product Description

The ADR821/ADR827 offer a combination of precision voltage reference and op amp in a 10-lead mini small outline package (MSOP). The reference and the op amp can be operated independently, offering the user a range of flexibility for arranging the combination. Featuring a combined operating current of less than 400 µA and 15 ppm/°C on the reference, the ADR82x is ideally suited for applications requiring precision and low power.

Available with the reference at 1.25 V and at 2.5 V, the ADR82x also comes in two grades. The reference on the A grade offers 30 ppm/°C temperature drift performance and ±0.4% initial accuracy. The B grade provides tighter temperature drift performance of 15 ppm/°C and only ±0.2% initial accuracy. All versions operate from −40°C to +125°C.

Applications

  • Battery-powered instrumentation
  • Portable medical instrumentation
  • Data acquisition systems
  • Industrial process controls
  • Automotive applications

    • Features

    • 10-lead MSOP package
    • ±2.7 V to ±15 V operation
    • 400 µA supply current
    • Reference
      °0.2% initial accuracy
      15 ppm/°C temperature drift maximum
      +5 mA/−3 mA output drive
    • −40°C to +125°C temperature range
    • On-board precision resistors
    • Amplifier
      Rail-to-Rail input and output
      100 µV offset voltage typical @ ±15 V
      50 nA bias current
      Unity gain stable
      No phase reversal

    Diagrams

    ADR827 Diagram
    Functional Block Diagram for ADR827

    Specifications

    Vout 1.25
    Initial Accuracy (%) 0.4
    Ref Out TC (ppm/C) 15ppm/C
    Supply Voltage Range (V) +2.7V to +15V
    Supply Current (max) 400µA
    Ref Output Current (mA) 5mA
    0.1-10 Hz Noise (µV p-p) 8µV p-p
    Temp Range(s) -40 to +125
    Package MSOP
    Reference Type Series

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