Overview
The AD588AQ, produced by Analog Devices Inc., is a high-precision voltage reference integrated circuit. It represents a significant advancement in monolithic voltage references, offering low initial error and low temperature drift. This device uses a proprietary ion-implanted, buried Zener diode and laser-wafer drift trimming of high stability thin film resistors to achieve outstanding performance. The AD588AQ includes a basic reference cell and three additional amplifiers that provide pin-programmable output ranges, making it highly versatile for various applications.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| OUTPUT VOLTAGE ERROR (+10 V, −10 V Outputs) | ±3 | −1 | +1 | mV |
| OUTPUT VOLTAGE ERROR (+5 V, −5 V Outputs) | ±3 | −1 | +1 | mV |
| OUTPUT VOLTAGE DRIFT (0°C to 70°C) | ±2 | ±3 | ±1.5 | ppm/°C |
| OUTPUT VOLTAGE DRIFT (−25°C to +85°C) | ±3 | ±3 | ±3 | ppm/°C |
| Supply Current | 10 | mA | ||
| Output Current | 10 | mA | ||
| Operating Temperature Range | −25°C | +85°C | ||
| Package Type | 16-Lead CERDIP |
Key Features
- High Precision: Low initial error and low temperature drift, providing absolute accuracy performance previously not available in monolithic form.
- Pin Programmable Output Ranges: Allows configuration of various output voltages such as ±5 V, +5 V, +10 V, −5 V, and −10 V through pin strapping.
- Full Kelvin Capability: Provides the means to sense a system ground and offer forced and sensed outputs referenced to that ground, ensuring high accuracy in applications.
- Low Drift Amplifiers: The amplifiers are laser trimmed for low offset and low drift, maintaining the accuracy of the reference.
- Temperature Compensation: The device includes temperature compensation circuitry, resulting in a temperature coefficient of 1.5 ppm/°C or less.
Applications
- Precision Measurement Systems: The AD588AQ can be used as a system reference in precision measurement applications requiring 12-bit absolute accuracy.
- System Calibration: It provides a known voltage for system calibration in software, eliminating the need for manual system calibration and periodic recalibration.
- Industrial and Aerospace: Available in various packages suitable for industrial and military/aerospace temperature ranges, making it versatile for different environments.
- Long Line and High Current Loads: The device can be configured to drive long lines or high current loads with the help of Kelvin connections and boosters).
Q & A
- What is the primary function of the AD588AQ?
The AD588AQ is a high-precision voltage reference integrated circuit designed to provide stable and accurate output voltages.
- What are the available output voltage configurations for the AD588AQ?
The AD588AQ can be configured to provide output voltages such as ±5 V, +5 V, +10 V, −5 V, and −10 V through pin strapping.
- What is the operating temperature range for the AD588AQ?
The AD588AQ is specified for the −25°C to +85°C industrial temperature range.
- What type of package is the AD588AQ available in?
The AD588AQ is available in a 16-lead CERDIP package.
- Does the AD588AQ support Kelvin connections?
Yes, the AD588AQ provides full Kelvin capability, allowing it to sense a system ground and offer forced and sensed outputs referenced to that ground.
- What is the typical supply current for the AD588AQ?
The typical supply current for the AD588AQ is 10 mA.
- What is the typical output current for the AD588AQ?
The typical output current for the AD588AQ is 10 mA.
- How does the AD588AQ achieve its high precision?
The AD588AQ uses a proprietary ion-implanted, buried Zener diode and laser-wafer drift trimming of high stability thin film resistors to achieve its high precision.
- What are some common applications for the AD588AQ?
The AD588AQ is commonly used in precision measurement systems, system calibration, and in industrial and aerospace environments.
- Does the AD588AQ require both positive and negative power supplies?
Yes, the AD588AQ requires both positive and negative power supplies for operation.
