Overview
The AD586LRZ-REEL, produced by Analog Devices Inc., is a high precision 5 V voltage reference that represents a significant advancement in monolithic voltage reference technology. It utilizes a proprietary ion-implanted buried Zener diode and laser wafer trimming of high stability thin-film resistors, resulting in outstanding performance at a low cost. The device is designed to offer higher precision and lower noise compared to most other 5 V references, making it an ideal choice for various precision applications.
Key Specifications
| Parameter | Value | Notes |
|---|---|---|
| Output Voltage | 5.000 V ±2.0 mV (M grade) | Maximum deviation from 5.000 V |
| Temperature Coefficient | 2 ppm/°C max (0°C to 70°C, M grade) | Varying coefficients for different grades |
| Noise Level | 100 nV/√Hz | Typical output noise |
| Noise Reduction | Pin available for external capacitor | For additional noise filtering |
| Output Current Capability | Sourcing or sinking 10 mA | Output current capacity |
| Operating Temperature Range | 0°C to 70°C (J, K, L, M grades) | Different ranges for A, B, S, and T grades |
| Package Types | 8-lead PDIP, SOIC, CERDIP | Varying package options |
| MIL-STD-883 Compliance | Available for certain versions | Compliant with military standards |
Key Features
- High Precision: Laser trimming of both initial accuracy and temperature coefficients results in very low errors over temperature without the use of external components.
- Low Noise: The buried Zener approach provides lower noise and drift than bandgap voltage references, with a typical output noise of 4 µV p-p.
- Noise Reduction Capability: A noise reduction pin is available for additional noise filtering using an external capacitor.
- Output Trim Capability: An optional fine-trim connection is provided for applications requiring higher precision.
- Industrial and Military Grades: Available in versions compliant with MIL-STD-883 and industrial temperature range SOICs.
- Output Current Capability: The output is capable of sourcing or sinking 10 mA.
Applications
The AD586 is recommended for use as a reference for 8-, 10-, 12-, 14-, or 16-bit DACs that require an external precision reference. It is also ideal for successive approximation or integrating ADCs with up to 14 bits of accuracy. The device can offer better performance than standard on-chip references in various precision applications.
Q & A
- What is the output voltage of the AD586?
The output voltage of the AD586 is 5.000 V with a maximum deviation of ±2.0 mV for the M grade.
- What is the temperature coefficient of the AD586?
The temperature coefficient is 2 ppm/°C max for the M grade between 0°C and 70°C.
- How does the AD586 reduce noise?
The AD586 provides a noise reduction pin that can be used with an external capacitor to further reduce the noise level generated by the buried Zener.
- What are the available package types for the AD586?
The AD586 is available in 8-lead PDIP, SOIC, and CERDIP packages.
- Is the AD586 compliant with military standards?
Yes, certain versions of the AD586 are compliant with MIL-STD-883.
- What is the output current capability of the AD586?
The output is capable of sourcing or sinking 10 mA.
- For which types of converters is the AD586 recommended?
The AD586 is recommended for use as a reference for 8-, 10-, 12-, 14-, or 16-bit DACs and for successive approximation or integrating ADCs with up to 14 bits of accuracy.
- How does the AD586 compare to other 5 V references?
The AD586 offers higher performance and lower noise compared to most other 5 V references, thanks to its proprietary ion-implanted buried Zener diode and laser wafer trimming.
- What is the operating temperature range for the AD586?
The operating temperature range varies by grade: 0°C to 70°C for J, K, L, M grades; -40°C to +85°C for A, B grades; and -55°C to +125°C for S, T grades.
- Does the AD586 require external components for operation?
No, the AD586 does not require external components for basic operation; however, an external fine trim may be desired for higher precision applications.
