Overview
The AD581LH, produced by Analog Devices Inc., is a high precision 10 V IC voltage reference. This 3-pin, temperature-compensated, monolithic device utilizes a band gap circuit design to provide a precise 10.00 V output from an unregulated input voltage ranging from 12 V to 30 V. The use of laser wafer trimming (LWT) ensures high precision performance by minimizing initial error and temperature coefficient, making it suitable for applications requiring high accuracy and stability.
Key Specifications
| Parameter | Minimum | Typical | Maximum |
|---|---|---|---|
| Output Voltage Tolerance | ±30 mV | ±10 mV | ±5 mV |
| Temperature Coefficient | 30 ppm/°C | 15 ppm/°C | 5 ppm/°C |
| Line Regulation (15 V ≤ VIN ≤ 30 V) | 3.0 mV (0.002%) | 3.0 mV (0.002%) | 3.0 mV (0.002%) |
| Load Regulation (0 ≤ IOUT ≤ 5 mA) | 200 μV/mA | 500 μV/mA | 500 μV/mA |
| Quiescent Current | 0.75 mA | 1.0 mA | 1.0 mA |
| Turn-On Settling Time to 0.1% | 200 μs | 200 μs | 200 μs |
| Noise (0.1 Hz to 10 Hz) | 40 μV (p-p) | 40 μV (p-p) | 40 μV (p-p) |
| Long-Term Stability | 25 ppm/1000 hr | 25 ppm/1000 hr | 25 ppm/1000 hr |
| Operating Temperature Range | 0°C to +70°C | ||
| Package | 3-Pin TO-5 Metal Can |
Key Features
- High Precision Output: The AD581LH provides a precise 10.00 V output with an initial error tolerance of ±5 mV and a temperature coefficient of 5 ppm/°C.
- Temperature Compensation: Laser wafer trimming ensures high precision performance over a wide temperature range without the need for external components.
- Low Quiescent Current: The device has a typical quiescent current of 750 μA, making it suitable for low power systems.
- High Output Current Capability: The output buffer amplifier can supply up to 10 mA.
- Long-Term Stability: The band gap design offers long-term stability equivalent to selected Zener reference diodes.
- MIL-STD-883 Compliant Versions: 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.
- Low Power Systems: Suitable for applications requiring high accuracy and stability in low power systems.
- Military and Aerospace: Available in versions compliant with MIL-STD-883, making it suitable for military and aerospace applications.
Q & A
- What is the output voltage of the AD581LH?
The AD581LH provides a precise 10.00 V output.
- What is the temperature coefficient of the AD581LH?
The temperature coefficient of the AD581LH is 5 ppm/°C.
- What is the typical quiescent current of the AD581LH?
The typical quiescent current is 750 μA.
- What is the maximum output current capability of the AD581LH?
The output buffer amplifier can supply up to 10 mA.
- What are the operating temperature ranges for the AD581LH?
The AD581LH operates from 0°C to +70°C.
- Is the AD581LH compliant with MIL-STD-883?
Yes, the AD581LH is available in versions compliant with MIL-STD-883.
- What type of package does the AD581LH come in?
The AD581LH is packaged in a hermetically sealed 3-pin TO-5 metal can.
- What are the typical applications of the AD581LH?
The AD581LH is recommended for use in DACs, ADCs, and other applications requiring high precision voltage references.
- How does the AD581LH achieve its high precision?
The AD581LH achieves high precision through laser wafer trimming, which minimizes initial error and temperature coefficient.
- What is the long-term stability of the AD581LH?
The long-term stability of the AD581LH is equivalent to selected Zener reference diodes, with a stability of 25 ppm/1000 hours.
