Catalog
High Precision 2.5 V IC Reference
Key Features
• Laser Trimmed to High Accuracy: 2.500 V ± 0.4%
• 3-Terminal Device: Voltage In/Voltage Out
• Excellent Temperature Stability: 10 ppm/°C (AD580M, U)
• Low Quiescent Current: 1.5 mA max
• Excellent Long-Term Stability: 250 µV (25 µV/Month)
• Small, Hermetic IC Package: TO-52 Can
• MIL-STD-883 Compliant Versions Available
Description
AI
The AD580 is a three-terminal, low cost, temperature compensated, bandgap voltage reference which provides a fixed 2.5 V output for inputs between 4.5 V and 30 V. A unique combination of advanced circuit design and laser-wafer trimmed thin-film resistors provide the AD580 with an initial tolerance of ±0.4%, a temperature stability of better than 10 ppm/°C and long-term stability of better than 250µV. In addition, the low quiescent current drain of 1.5 mA max offers a clear advantage over classical Zener techniques.The AD580 is recommended as a stable reference for all 8-, 10- and 12-bit D-to-A converters that require an external reference. In addition, the wide input range of the AD580 allows operation with 5 volt logic supplies making the AD580 ideal for digital panel meter applications or whenever only a single logic power supply is available.The AD580J, K, L and M are specified for operation over the 0°C to +70°C temperature range; the AD580S, T and U are specified for operation over the extended temperature range of -55°C to +125°C.