Overview
The AD7884AQ is a high-speed, 16-bit analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the AD7884 series and is known for its high throughput rate and robust conversion capabilities. The AD7884AQ uses a two-pass flash architecture, enabling it to achieve a maximum throughput rate of 166 kSPS. It is designed to operate over a wide temperature range of -40°C to +85°C, making it suitable for various industrial and commercial applications.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 16 bits |
| Throughput Rate | 166 kSPS |
| Input Ranges | ±5 V, ±3 V |
| Conversion Time | 5.3 µs (first phase: 3.35 µs) |
| Supply Voltage | ±5 V |
| Reference Voltage | 3 V (VREF+) |
| Temperature Range | -40°C to +85°C |
| Package Type | 40-lead CERDIP, 44-lead PLCC |
| Output Structure | 16-bit parallel |
| Conversion Initiation | CONVST signal |
Key Features
- High-Speed Conversion: The AD7884AQ features a two-pass flash architecture, allowing for high-speed conversions with a maximum throughput rate of 166 kSPS.
- Dual Input Ranges: The device supports two input ranges: ±5 V and ±3 V, providing flexibility in various application scenarios.
- Internal Oscillator: It has its own internal oscillator that controls the conversion process, simplifying system design.
- Sample-and-Hold Amplifier: The analog input section includes a sample-and-hold amplifier, ensuring accurate signal capture and conversion.
- Parallel Output Structure: The AD7884AQ offers a 16-bit parallel output structure, facilitating easy integration with microprocessors.
- Wide Temperature Range: The device operates over a temperature range of -40°C to +85°C, making it suitable for harsh environments.
Applications
- Industrial Automation: The high speed and accuracy of the AD7884AQ make it ideal for industrial automation applications where rapid data acquisition is critical.
- Medical Devices: Its precision and reliability are beneficial in medical devices that require accurate and fast analog-to-digital conversion.
- Aerospace and Defense: The device's ability to operate over a wide temperature range and its high-speed conversion capabilities make it suitable for aerospace and defense applications.
- Test and Measurement Equipment: The AD7884AQ is used in various test and measurement instruments where high-speed data acquisition is necessary.
Q & A
- What is the resolution of the AD7884AQ?
The AD7884AQ has a resolution of 16 bits.
- What is the maximum throughput rate of the AD7884AQ?
The maximum throughput rate of the AD7884AQ is 166 kSPS.
- What are the available input ranges for the AD7884AQ?
The AD7884AQ supports input ranges of ±5 V and ±3 V.
- How is the conversion process initiated in the AD7884AQ?
The conversion process is initiated by the CONVST signal.
- What type of output structure does the AD7884AQ have?
The AD7884AQ has a 16-bit parallel output structure.
- What is the temperature range of the AD7884AQ?
The AD7884AQ operates over a temperature range of -40°C to +85°C.
- What type of packages is the AD7884AQ available in?
The AD7884AQ is available in 40-lead CERDIP and 44-lead PLCC packages.
- Does the AD7884AQ have an internal oscillator?
Yes, the AD7884AQ has its own internal oscillator that controls the conversion process.
- What is the purpose of the sample-and-hold amplifier in the AD7884AQ?
The sample-and-hold amplifier ensures accurate signal capture and conversion by holding the input signal during the conversion process.
- In what types of applications is the AD7884AQ commonly used?
The AD7884AQ is commonly used in industrial automation, medical devices, aerospace and defense, and test and measurement equipment.
