AD9218BSTZ-80

Product Overview

Category: Integrated Circuit (IC)

Use: The AD9218BSTZ-80 is a high-speed analog-to-digital converter (ADC) designed for various applications that require precise and fast conversion of analog signals into digital data. It is commonly used in communication systems, medical equipment, industrial automation, and scientific research.

Characteristics: - High-speed conversion: The AD9218BSTZ-80 can convert analog signals into digital data at a maximum rate of 80 Mega Samples Per Second (MSPS), ensuring accurate representation of the input signal. - High resolution: With a 12-bit resolution, this ADC provides excellent precision in capturing analog signals. - Low power consumption: The device operates at low power levels, making it suitable for battery-powered applications. - Wide input voltage range: The AD9218BSTZ-80 can handle input voltages ranging from -0.3V to +2.5V, allowing flexibility in signal acquisition. - Small package size: The ADC is available in a compact package, making it easy to integrate into various electronic systems.

Package and Quantity: The AD9218BSTZ-80 is packaged in a small outline integrated circuit (SOIC) package. Each package contains one unit of the ADC.

Specifications

• Resolution: 12 bits
• Sampling Rate: Up to 80 MSPS
• Input Voltage Range: -0.3V to +2.5V
• Power Supply: +3.3V
• Power Consumption: 150mW (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AD9218BSTZ-80 has a total of 28 pins. The pin configuration is as follows:

Pin 1: VREFP Pin 2: VREFN Pin 3: VCM Pin 4: VIN- Pin 5: VIN+ Pin 6: AGND Pin 7: DGND Pin 8: CLK Pin 9: CS Pin 10: SDO Pin 11: SDI Pin 12: SCLK Pin 13: PDWN Pin 14: RESET Pin 15: AVDD Pin 16: DVDD Pin 17: D[11] Pin 18: D[10] Pin 19: D[9] Pin 20: D[8] Pin 21: D[7] Pin 22: D[6] Pin 23: D[5] Pin 24: D[4] Pin 25: D[3] Pin 26: D[2] Pin 27: D[1] Pin 28: D[0]

Functional Features

• High-speed conversion: The AD9218BSTZ-80 can accurately convert analog signals into digital data at a high sampling rate of up to 80 MSPS.
• Low power consumption: The ADC operates at low power levels, making it suitable for power-constrained applications.
• Flexible input voltage range: The device can handle a wide range of input voltages, allowing compatibility with various signal sources.
• Serial interface: The ADC supports a serial interface for easy integration with microcontrollers and other digital systems.
• Built-in reference voltage: The AD9218BSTZ-80 includes an internal reference voltage, eliminating the need for an external reference source.

Advantages and Disadvantages

Advantages: - High-speed and accurate conversion - Low power consumption - Wide input voltage range - Compact package size - Built-in reference voltage

Disadvantages: - Limited resolution compared to higher-end ADCs - May require additional external components for specific applications

Working Principles

The AD9218BSTZ-80 operates based on the successive approximation register (SAR) architecture. It uses a sample-and-hold circuit to capture the analog input signal, which is then converted into digital data through a series of comparisons and approximations. The internal reference voltage ensures accurate conversion, while the serial interface allows easy communication with external devices.

Application Field Plans

The AD9218BSTZ-80 finds applications in various fields, including:

1. Communication Systems: The ADC is used in wireless communication systems for signal processing and modulation/demodulation tasks.
2. Medical Equipment: It is employed in medical imaging devices, such as ultrasound machines, for converting analog signals from sensors into digital images.
3. Industrial Automation: The ADC is utilized in industrial control systems for precise measurement and monitoring of analog signals.
4. Scientific Research: It is used in scientific instruments and data acquisition systems for capturing and analyzing analog signals in research experiments.

Alternative Models

1. AD9218BSTZ-100: Similar to the AD9218BSTZ-80