AD7865YSZ-1

Product Overview

Category

AD7865YSZ-1 belongs to the category of analog-to-digital converters (ADCs).

Use

The AD7865YSZ-1 is used to convert analog signals into digital data. It is commonly employed in various applications that require precise and accurate conversion of analog signals, such as industrial automation, medical equipment, and communication systems.

Characteristics

• High-resolution: The AD7865YSZ-1 offers a resolution of 16 bits, ensuring accurate conversion of analog signals.
• Fast conversion rate: With a maximum sampling rate of 250 kilosamples per second (ksps), it provides real-time data acquisition.
• Low power consumption: The ADC operates at low power levels, making it suitable for battery-powered devices.
• Wide input voltage range: It can handle a wide range of input voltages, allowing flexibility in signal acquisition.
• Serial interface: The AD7865YSZ-1 utilizes a serial interface for easy integration with microcontrollers or other digital systems.

Package and Quantity

The AD7865YSZ-1 comes in a small outline integrated circuit (SOIC) package. It is available in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Resolution: 16 bits
• Sampling Rate: Up to 250 ksps
• Input Voltage Range: ±10V
• Power Supply: +5V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AD7865YSZ-1 has a total of 28 pins. The pin configuration is as follows:

Pin 1: VREF- Pin 2: VREF+ Pin 3: AGND Pin 4: DGND Pin 5: REFIN Pin 6: REFOUT Pin 7: AIN1 Pin 8: AIN2 Pin 9: AIN3 Pin 10: AIN4 Pin 11: AIN5 Pin 12: AIN6 Pin 13: AIN7 Pin 14: AIN8 Pin 15: CS Pin 16: SCLK Pin 17: DIN Pin 18: DOUT Pin 19: RD Pin 20: WR Pin 21: CONVST Pin 22: RESET Pin 23: VDRIVE Pin 24: VIO Pin 25: AVDD Pin 26: DVDD Pin 27: NC Pin 28: VREFOUT

Functional Features

• High accuracy: The AD7865YSZ-1 provides precise and reliable conversion of analog signals, ensuring accurate data representation.
• Low noise: It incorporates a low-noise architecture, minimizing the impact of external interference on the converted digital data.
• Flexible input configuration: The ADC supports single-ended and differential input configurations, allowing compatibility with various signal sources.
• On-chip reference: The AD7865YSZ-1 includes an on-chip voltage reference, eliminating the need for an external reference source.

Advantages and Disadvantages

Advantages

• High resolution and fast conversion rate enable accurate and real-time data acquisition.
• Low power consumption makes it suitable for battery-powered applications.
• Wide input voltage range allows flexibility in signal acquisition.
• Serial interface simplifies integration with digital systems.

Disadvantages

• Limited number of input channels may restrict its use in applications requiring multiple simultaneous measurements.
• Higher cost compared to lower-resolution ADCs.

Working Principles

The AD7865YSZ-1 operates based on the successive approximation register (SAR) architecture. It samples the analog input voltage and performs a series of comparisons to determine the digital representation of the signal. The internal SAR algorithm iteratively adjusts the digital code until it converges to the closest approximation of the input voltage.

Detailed Application Field Plans

The AD7865YSZ-1 finds applications in various fields, including:

1. Industrial Automation: Used for precise measurement and control of analog signals in industrial processes.
2. Medical Equipment: Enables accurate data acquisition in medical devices such as patient monitoring systems and diagnostic equipment.
3. Communication Systems: Utilized for analog-to-digital conversion in communication systems, ensuring reliable transmission and reception of signals.
4. Test and Measurement: Provides high-resolution data acquisition capabilities for test and measurement equipment, facilitating accurate measurements.

Alternative Models

For users seeking alternative options, the following ADC models can be considered:

1. AD7866: Similar to AD7865YSZ-1 but with additional input channels.
2. AD7685: A lower-resolution ADC with 16-bit resolution and similar features.
3. ADS1256: A high-resolution ADC with 24-bit resolution, suitable for demanding applications.