Overview
The AD588, produced by Analog Devices Inc., is a high-precision, multiple output, dual tracking voltage reference IC. It represents a significant advancement in monolithic voltage references, offering low initial error and low temperature drift. This component utilizes a proprietary ion-implanted, buried Zener diode and laser-wafer drift trimming of high stability thin film resistors to achieve outstanding performance. The AD588 is designed to provide pin programmable output ranges, making it highly versatile for various precision measurement applications.
Key Specifications
| Parameter | Value |
|---|---|
| Package Type | 20-lead LCC (Land Grid Array), 16-lead CERDIP, 16-lead SOIC Wide |
| Temperature Range | -55°C to +125°C (military/aerospace), -25°C to +85°C (industrial), 0°C to +70°C (commercial) |
| Initial Error | 1 mV |
| Temperature Drift | 1.5 ppm/°C |
| Output Noise | 10 µV p-p |
| Output Current | Up to 10 mA |
| Supply Voltage | Requires both positive and negative supplies |
| Kelvin Connections | Full Kelvin capability for sensing system ground and providing forced and sensed outputs |
Key Features
- Low initial error and low temperature drift for high accuracy.
- Pin programmable output ranges for flexibility.
- Includes three additional amplifiers for buffering and boosting outputs.
- Full Kelvin capability for accurate sensing and output.
- Low noise performance (10 µV p-p).
- High stability thin film resistors and laser-wafer drift trimming.
Applications
The AD588 is suitable for a variety of precision measurement applications, including:
- Precision system calibration: Provides a known voltage for system calibration, eliminating the need for manual calibration and periodic recalibration.
- Analog-to-Digital Converters (ADCs): Can be used with ADCs like the AD574A to provide a precise reference voltage.
- Digital-to-Analog Converters (DACs): Compatible with DACs such as the AD7535 and AD569.
- Resistance Temperature Detector (RTD) Excitation: Can be used to excite RTDs accurately.
- Bridge Driver Circuits: Useful in bridge driver circuits for precise voltage references.
Q & A
- What is the primary function of the AD588? The AD588 is a high-precision, multiple output, dual tracking voltage reference IC.
- What are the key features of the AD588? Low initial error, low temperature drift, pin programmable output ranges, and full Kelvin capability.
- What are the available package types for the AD588? 20-lead LCC, 16-lead CERDIP, and 16-lead SOIC Wide.
- What is the temperature range for the AD588? -55°C to +125°C (military/aerospace), -25°C to +85°C (industrial), and 0°C to +70°C (commercial).
- What is the initial error of the AD588? 1 mV.
- How much temperature drift does the AD588 exhibit? 1.5 ppm/°C.
- What is the output noise of the AD588? 10 µV p-p.
- Can the AD588 be used with analog-to-digital converters? Yes, it can be used with ADCs like the AD574A to provide a precise reference voltage.
- Does the AD588 require both positive and negative supplies? Yes, it requires both positive and negative supplies for operation.
- What is the purpose of the Kelvin connections in the AD588? The Kelvin connections allow for accurate sensing of system ground and providing forced and sensed outputs.
