AD589:  Two-Terminal IC 1.2 V Reference

The AD589 is a two-terminal, low cost, temperature compensated bandgap voltage reference which provides a fixed 1.23 V output voltage for input currents between 50 µA and 5.0 mA.

The high ...More

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AD589:  Two-Terminal IC 1.2 V Reference

Product Description

The AD589 is a two-terminal, low cost, temperature compensated bandgap voltage reference which provides a fixed 1.23 V output voltage for input currents between 50 µA and 5.0 mA.

The high stability of the AD589 is primarily dependent upon the matching and thermal tracking of the on-chip components. Analog Devices' precision bipolar processing and thin-film technology combine to provide excelent performance at low cost.

Additionally, the active circuit produces an output impedance ten times lower than typical low-TC Zener diodes. This feature allows operation with no external components required to maintain full accuracy under changing load conditions.

The AD589 is available in seven versions. The AD589J, K, L and M grades are specified for 0°C to +70°C operation, while the S, T, and U grades are rated for the full -55°C to +125°C temperature range. All grades are available in a metal can (H-02A) package. The AD589J is also available in an 8-pin SOIC package.

Features

  • Superior Replacement for Other 1.2 V References
  • Wide Operating Range: 50 µA to 5 mA
  • Low Power: 60 µW Total PD at 50 µA
  • Low Temperature Coefficient:
    10 ppm/°C Max, 0°C to 70/°C (AD589M)
  • 2-Terminal Zener Operation
  • Low Output Impedance: 0.6 Ω
  • No Frequency Compensation Required
  • Low Cost
  • MIL-STD-883 Compliant Versions Available

Diagrams

AD589 Diagram
Pin Configuration for AD589

Specifications

Vout 1.2
Initial Accuracy (%) 1.2
Ref Out TC (ppm/C) 10ppm/C
Supply Voltage Range (V) n/a, Shunt Type Reference
Supply Current (max) 50µA
Ref Output Current (mA) n/a
0.1-10 Hz Noise (µV p-p) 5µV p-p
Temp Range(s) -55 to +125,0 to +70
Package Metal Can,SOIC
Reference Type Shunt

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