Overview
The AD581SH is a high-precision 10 V IC voltage reference produced by Analog Devices Inc. This monolithic, temperature-compensated device is designed to provide a precise 10.00 V output from an unregulated input voltage ranging from 12 V to 30 V. The AD581SH utilizes laser wafer trimming to achieve high accuracy and stability, making it suitable for a variety of precision applications in analog and digital systems.
Key Specifications
| Parameter | Min | Typ | Max |
|---|---|---|---|
| Output Voltage Tolerance (Error from Nominal 10,000 V Output) | ±5 mV (L model), ±15 mV (U model) | ||
| Temperature Coefficient | 5 ppm/°C (L model), 10 ppm/°C (U model) | ||
| Line Regulation (15 V ≤ VIN ≤ 30 V) | 3.0 mV (0.002%) | ||
| Load Regulation (0 ≤ IOUT ≤ 5 mA) | 200 μV/mA | ||
| Quiescent Current | 0.75 mA | 1.0 mA | |
| Turn-on Settling Time to 0.1% | 200 μs | ||
| Noise (0.1 Hz to 10 Hz) | 40 μV (p-p) | ||
| Long-term Stability | 25 ppm/1000 hrs | ||
| Operating Temperature Range | -55°C to +125°C (U model) | ||
| Package Type | 3-Lead TO-5 Metal Can |
Key Features
- High Precision Output: The AD581SH provides a precise 10.00 V output with a maximum deviation of ±5 mV for the L model and ±15 mV for the U model over the specified temperature range.
- Temperature Compensation: Laser wafer trimming ensures a low temperature coefficient of 5 ppm/°C for the L model and 10 ppm/°C for the U model.
- No External Components Required: Achieves full accuracy and stability without the need for external components, making it ideal for low power systems.
- Low Quiescent Current: The device has a typical quiescent current of 750 μA, including the output buffer amplifier.
- High Output Current Capability: The output buffer amplifier can supply up to 10 mA.
- Long-term Stability: Equivalent to selected Zener reference diodes, with a long-term stability of 25 ppm/1000 hours.
- MIL-STD-883 Compliant: Available in versions compliant with MIL-STD-883 for military and aerospace applications.
Applications
- Digital-to-Analog Converters (DACs): Recommended for use as a reference for 8-, 10-, or 12-bit DACs that require an external precision reference.
- Analog-to-Digital Converters (ADCs): Ideal for all types of ADCs up to 14-bit accuracy, including successive approximation and integrating designs.
- Precision Measurement Systems: Suitable for applications requiring high precision voltage references, such as in test and measurement equipment.
- Military and Aerospace: Versions compliant with MIL-STD-883 make it suitable for military and aerospace applications.
Q & A
- What is the output voltage of the AD581SH?
The AD581SH provides a precise 10.00 V output.
- What is the temperature coefficient of the AD581SH?
The temperature coefficient is 5 ppm/°C for the L model and 10 ppm/°C for the U model.
- Does the AD581SH require external components for full accuracy?
No, the AD581SH achieves full accuracy and stability without the need for external components.
- What is the typical quiescent current of the AD581SH?
The typical quiescent current is 750 μA, including the output buffer amplifier.
- What is the maximum output current capability of the AD581SH?
The output buffer amplifier can supply up to 10 mA.
- What is the long-term stability of the AD581SH?
The long-term stability is 25 ppm/1000 hours.
- Is the AD581SH compliant with MIL-STD-883?
Yes, versions of the AD581SH are compliant with MIL-STD-883.
- What are the typical applications of the AD581SH?
It is used as a reference for DACs, ADCs, and in precision measurement systems.
- What is the operating temperature range of the AD581SH?
The operating temperature range is -55°C to +125°C for the U model.
- What type of package does the AD581SH come in?
The AD581SH comes in a 3-Lead TO-5 metal can package.
