GENERAL DESCRIPTION
The AD584LH 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 AD584LH is used as a power supply reference, the supply can be switched off with a single, lowpower 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 750 µA including the output buffer amplifier. The AD584LH 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 AD584LH J and K are also available in an 8-pin plastic DIP.
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/8C max, 08C to +708C (AD584L) 15 ppm/8C max, –558C to +125°C (AD584T) Zero Output Strobe Terminal Provided Two Terminal Negative Reference Capability (5 V & Above) Output Sources or Sinks Current Low Quiescent Current: 1.0 mA max 10 mA Current Output Capability MIL-STD-883 Compliant Versions Available
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/8C max, 08C to +708C (AD584L)
15 ppm/8C max, –558C to +125°C (AD584T)
Zero Output Strobe Terminal Provided
Two Terminal Negative Reference
Capability (5 V & Above)
Output Sources or Sinks Current
Low Quiescent Current: 1.0 mA max
10 mA Current Output Capability
MIL-STD-883 Compliant Versions Available
Feature
- 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:15 ppm/°C Max, 0°C to 70°C (AD584K)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
(Picture: Pinout)
