Overview
The AD976AAN is a high-speed, low-power 16-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device operates from a single 5 V supply and is designed for high-performance applications. The AD976AAN features a successive approximation, switched capacitor architecture and includes an internal 2.5 V reference and a high-speed parallel interface. It is fabricated using Analog Devices’ proprietary BiCMOS process, which combines high-performance bipolar devices with CMOS transistors. The device is available in 28-lead DIP, SSOP, and SOIC packages.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16-bit |
| Throughput Rate | 200 kSPS (AD976A), 100 kSPS (AD976) |
| Supply Voltage | Single 5 V |
| Power Dissipation | 100 mW max |
| Input Range | ±10 V |
| Reference | Internal 2.5 V |
| Interface | High-speed parallel interface |
| Package | 28-lead DIP, SSOP, SOIC |
| Operating Temperature | –40°C to +85°C |
Key Features
- Fast Throughput: The AD976AAN offers high-speed throughput rates of up to 200 kSPS, making it suitable for demanding applications.
- Single-Supply Operation: Operates from a single 5 V supply, reducing power consumption and simplifying system design.
- Comprehensive DC and AC Specifications: Factory calibrated and fully tested for SNR, THD, offset, gain, and linearity, ensuring high accuracy and reliability.
- Complete A/D Solution: Includes an accurate ADC, reference, and on-chip clock, providing a highly integrated solution.
- High-Speed Parallel Interface: Allows direct connection to digital signal processors and microcontrollers.
- Successive Approximation Technique: Uses a capacitor array charge distribution technique for analog-to-digital conversion, eliminating the need for external sample/hold circuitry.
Applications
The AD976AAN is suitable for a variety of high-performance applications, including:
- Industrial Automation: For precise measurement and control in industrial environments.
- Medical Devices: For accurate data acquisition in medical equipment.
- Aerospace and Defense: For high-reliability and high-precision data conversion in aerospace and defense systems.
- Test and Measurement Equipment: For high-speed and accurate data acquisition in test and measurement instruments.
Q & A
- What is the resolution of the AD976AAN ADC?
The AD976AAN has a resolution of 16 bits.
- What are the throughput rates of the AD976 and AD976A?
The AD976 has a throughput rate of 100 kSPS, while the AD976A has a throughput rate of 200 kSPS.
- What is the supply voltage for the AD976AAN?
The AD976AAN operates from a single 5 V supply.
- What is the input range of the AD976AAN?
The input range of the AD976AAN is ±10 V.
- Does the AD976AAN have an internal reference?
Yes, the AD976AAN includes an internal 2.5 V reference.
- What types of packages are available for the AD976AAN?
The AD976AAN is available in 28-lead DIP, SSOP, and SOIC packages.
- What is the operating temperature range for the AD976AAN?
The operating temperature range is –40°C to +85°C.
- Is the AD976AAN still in production?
No, the AD976AAN is obsolete and no longer manufactured.
- What technique does the AD976AAN use for analog-to-digital conversion?
The AD976AAN uses a successive approximation technique with a capacitor array charge distribution method.
- What are some typical applications for the AD976AAN?
Typical applications include industrial automation, medical devices, aerospace and defense, and test and measurement equipment.
