AD584:  Pin Programmable Precision Voltage Reference

The AD584 is an eight-terminal precision voltage reference offering pin-programmable selection of four popular output voltages: 10.000 V, 7.500 V, 5.000 V and 2.500 V. Other output voltages, ...More

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AD584:  Pin Programmable Precision Voltage Reference

Product Description

The AD584 is an eight-terminal precision voltage reference offering pin-programmable selection of four popular output voltages: 10.000 V, 7.500 V, 5.000 V and 2.500 V. Other output voltages, above, below or between the four standard outputs, are available by the addition of external resistors. Input voltage may vary between 4.5 and 30 volts.

Laser Wafer Trimming (LWT) is used to adjust the pin-programmable output levels and temperature coefficients, resulting in the most flexible high precision voltage reference available in monolithic form.

In addition to the programmable output voltages, the AD584 offers a unique strobe terminal which permits the device to be turned on or off. When the AD584 is used as a power supply reference, the supply can be switched off with a single, low-power signal. In the "off" state the current drain by the AD584 is reduced to about 100 µA. In the "on" state the total supply current is typically 750µA including the output buffer amplifier.

The AD584 is recommended for use as a reference for 8-, 10- or 12-bit D/A converters which require an external precision reference. The device is also ideal for all types of A/D converters of up to 14-bit accuracy, either successive approximation or integrating designs, and in general can offer better performance than that provided by standard self-contained references.

The AD584J, K and L are specified for operation from 0°C to +70°C; the AD584S and T are specified for the -55°C to +125°C range. All grades are packaged in a hermetically sealed eight-terminal TO-99 metal can; the AD584 J and K are also available in an 8-pin plastic DIP.

*Protected by U.S. Patent No. 3,887,863; RE 30,586

Features

  • Four Programmable Output Voltages: 10.000 V, 7.500 V, 5.000 V, 2.500 V
  • Laser Trimmed to High Accuracies
  • No External Components Required
  • Trimmed Temperature Coefficient:
    5 ppm/°C Max, 0°C to 70°C (AD584L)
    15 ppm/°C Max, -55°C to +125°C (AD584T)
  • Zero Output Strobe Terminal Provided
  • Two Terminal Negative Reference
    Capability (5 V and above)
  • Output Sources or Sinks Current
  • Low Quiescent Current: 1.0 mA Max
  • 10 mA Current Output Capability
  • MIL-STD-883 Compliant Versions
    Available

Diagrams

AD584 Diagram
Functional Block Diagram for AD584

Specifications

Vout +2.5/+5/+7.5/+10 Prog
Initial Accuracy (%) 0.05
Ref Out TC (ppm/C) 5ppm/C
Supply Voltage Range (V) +4.5 to +30
Supply Current (max) 1mA
Ref Output Current (mA) 10mA
0.1-10 Hz Noise (µV p-p) 50µV p-p
Temp Range(s) -55 to +125,0 to +70
Package DIP,TO-92
Reference Type Series-Multi/Select Out

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AD589 1.2 1.2 10 5 n/a n/a, Shunt Type Reference -55 to +125, 0 to +70 50µA Shunt Metal Can, SOIC $1.33 Two-Terminal IC 1.2 V Shunt Reference
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ADR127 1.25 0.12 3 5 5 +2.7 to +18 -40 to +125 125µA Series TSOT $0.92 1.25V, Precision Micropower LDO Voltage Reference
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