AD9280ARSZ

Basic Information Overview

• Category: Analog-to-Digital Converter (ADC)
• Use: Converts analog signals into digital data
• Characteristics:
  • High-speed, low-power ADC
  • 8-bit resolution
  • Sampling rate up to 100 MSPS (Mega Samples Per Second)
• Package: Small Outline Integrated Circuit (SOIC)
• Essence: Provides accurate and fast conversion of analog signals to digital format
• Packaging/Quantity: Available in reels of 250 units

Specifications

• Resolution: 8 bits
• Input Voltage Range: 0V to VREF
• Sampling Rate: Up to 100 MSPS
• Power Supply: +5V
• Power Consumption: 200 mW
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The AD9280ARSZ has a total of 28 pins. The pin configuration is as follows:

1. VREF-
2. VREF+
3. AGND
4. VIN-
5. VIN+
6. VCM
7. DGND
8. CLKOUT
9. D[7]
10. D[6]
11. D[5]
12. D[4]
13. D[3]
14. D[2]
15. D[1]
16. D[0]
17. CS
18. WR
19. RD
20. RESET
21. PDWN
22. DVDD
23. AVDD
24. REFOUT
25. REFIN
26. CLKIN
27. CLK
28. VIO

Functional Features

• High-speed conversion: The AD9280ARSZ can convert analog signals into digital data at a sampling rate of up to 100 MSPS.
• Low power consumption: With a power consumption of only 200 mW, it is suitable for power-sensitive applications.
• Wide input voltage range: The ADC can accept analog input voltages ranging from 0V to VREF.
• Small form factor: The SOIC package allows for easy integration into various electronic systems.

Advantages and Disadvantages

Advantages: - High-speed conversion enables real-time data acquisition. - Low power consumption makes it suitable for portable devices. - Wide input voltage range allows for versatile applications. - Small form factor facilitates integration into compact designs.

Disadvantages: - Limited resolution of 8 bits may not be sufficient for certain high-precision applications. - Requires external voltage reference (VREF) for accurate conversions.

Working Principles

The AD9280ARSZ operates based on the successive approximation register (SAR) architecture. It samples the analog input signal at a high speed and converts it into digital data using a comparator and a digital-to-analog converter (DAC). The SAR algorithm iteratively determines the most significant bit (MSB) by comparing the DAC output with the sampled input voltage. This process continues until all the bits are determined, resulting in an 8-bit digital representation of the analog input.

Detailed Application Field Plans

The AD9280ARSZ is commonly used in various applications that require high-speed analog-to-digital conversion. Some of the specific application fields include:

1. Communications: Used in wireless communication systems for baseband signal processing and modulation/demodulation.
2. Test and Measurement: Enables accurate data acquisition in oscilloscopes, spectrum analyzers, and other test equipment.
3. Medical Imaging: Provides fast digitization of signals in medical imaging devices such as ultrasound machines and MRI scanners.
4. Industrial Automation: Used in control systems for precise measurement and monitoring of analog signals.
5. Radar Systems: Enables digitization of radar signals for target detection and tracking.

Detailed and Complete Alternative Models

1. AD9281ARSZ: Similar to AD9280ARSZ but with 10-bit resolution.
2. AD9648BCPZ-80: 14-bit ADC with a sampling rate of 80 MSPS.
3. MAX11100PMB1: 12-bit ADC evaluation board with a sampling rate of 100 MSPS.

These alternative models offer different resolutions, sampling rates, and package options to suit specific application requirements.

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