Overview
The AD976ABN is a high-speed, low-power 16-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device operates on a single 5 V supply and is designed for high-throughput applications. The AD976ABN is part of the AD976/AD976A series, which features successive approximation, switched capacitor architecture. It is fabricated using Analog Devices’ proprietary BiCMOS process, combining high-performance bipolar devices with CMOS transistors. The ADC is factory calibrated to minimize linearity errors and is fully tested for both DC and AC parameters such as SNR, THD, offset, gain, and linearity.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Throughput Rate | 100 kSPS (AD976), 200 kSPS (AD976A) |
| Supply Voltage | Single 5 V |
| Power Dissipation | 100 mW max |
| Input Range | ±10 V |
| Reference | Internal or External 2.5 V |
| Interface | High Speed Parallel Interface |
| Package Options | 28-Lead Skinny DIP, SSOP, SOIC |
| Operating Temperature | –40°C to +85°C |
Key Features
- Fast Throughput: High-speed operation with throughput rates of 100 kSPS for the AD976 and 200 kSPS for the AD976A.
- Single-Supply Operation: Operates from a single 5 V supply, minimizing power consumption and complexity.
- Comprehensive DC and AC Specifications: Factory calibrated and fully tested for SNR, THD, offset, gain, and linearity.
- 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 AD976ABN is suitable for a variety of high-speed data acquisition applications, including:
- Industrial Automation: High-speed data acquisition in industrial control systems.
- Medical Devices: High-precision data conversion in medical imaging and diagnostic equipment.
- Aerospace and Defense: High-reliability data acquisition in aerospace and defense systems.
- Test and Measurement: High-speed data conversion in test and measurement instruments.
Q & A
- What is the resolution of the AD976ABN ADC?
The AD976ABN 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 AD976ABN?
The AD976ABN operates on a single 5 V supply.
- What is the input range of the AD976ABN?
The input range of the AD976ABN is ±10 V.
- Does the AD976ABN have an internal reference?
Yes, the AD976ABN can use either an internal or external 2.5 V reference.
- What types of packages are available for the AD976ABN?
The AD976ABN is available in 28-Lead Skinny DIP, SSOP, and SOIC packages.
- What is the operating temperature range of the AD976ABN?
The operating temperature range is –40°C to +85°C.
- Is the AD976ABN still in production?
No, the AD976ABN is obsolete and no longer manufactured. However, there are available substitutes such as the AD7651ASTZ.
- What is the power dissipation of the AD976ABN?
The maximum power dissipation is 100 mW.
- How does the AD976ABN perform analog-to-digital conversion?
The AD976ABN uses a successive approximation technique with a capacitor array charge distribution method for analog-to-digital conversion.
