AD7628KNZ

Product Overview

Category

AD7628KNZ belongs to the category of Analog-to-Digital Converters (ADCs).

Use

The AD7628KNZ is used to convert analog signals into digital data for processing in various applications.

Characteristics

• High-resolution: The AD7628KNZ offers a resolution of 16 bits, ensuring accurate conversion of analog signals.
• Fast conversion rate: It can perform conversions at a rate of up to 1 mega-sample per second (MSPS), enabling real-time data acquisition.
• Low power consumption: The device operates with low power consumption, making it suitable for battery-powered applications.
• Wide input voltage range: The AD7628KNZ accepts input voltages ranging from 0V to VREF, allowing flexibility in signal acquisition.
• Serial interface: It features a serial peripheral interface (SPI) for easy communication with microcontrollers or other digital devices.

Package and Quantity

The AD7628KNZ comes in a 48-lead LQFP (Low Profile Quad Flat Package) package. It is typically sold in reels containing a quantity of 250 units.

Specifications

• Resolution: 16 bits
• Conversion Rate: Up to 1 MSPS
• Input Voltage Range: 0V to VREF
• Interface: SPI (Serial Peripheral Interface)
• Package Type: 48-lead LQFP
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The AD7628KNZ has a total of 48 pins. Below is the detailed pin configuration:

Pin Number | Pin Name | Description -----------|----------|------------ 1 | VDD | Power supply voltage 2 | VREF | Reference voltage input 3 | AGND | Analog ground 4-19 | AIN0-AIN15 | Analog input channels 20 | DVDD | Digital power supply voltage 21 | DGND | Digital ground 22 | SCLK | Serial clock input 23 | DIN | Serial data input 24 | DOUT | Serial data output 25 | CS | Chip select input 26-33 | ADDR0-ADDR7 | Address inputs 34-41 | GPIO0-GPIO7 | General-purpose I/O pins 42-45 | NC | No connection 46 | RESET | Reset input 47 | PD | Power-down input 48 | VIO | I/O power supply voltage

Functional Features

• High-resolution conversion: The AD7628KNZ provides accurate 16-bit resolution conversion, ensuring precise digitization of analog signals.
• Fast data acquisition: With a conversion rate of up to 1 MSPS, it enables real-time data acquisition for time-sensitive applications.
• Flexible input range: The device accepts a wide input voltage range from 0V to VREF, allowing compatibility with various signal sources.
• Easy integration: It features a serial peripheral interface (SPI) for seamless communication with microcontrollers or other digital devices.
• Low power consumption: The AD7628KNZ operates with low power consumption, making it suitable for power-constrained applications.

Advantages and Disadvantages

Advantages

• High-resolution conversion ensures accurate digitization of analog signals.
• Fast conversion rate enables real-time data acquisition.
• Wide input voltage range provides flexibility in signal acquisition.
• Serial interface allows easy integration with digital devices.
• Low power consumption makes it suitable for battery-powered applications.

Disadvantages

• Limited number of analog input channels (16 channels).
• Requires an external reference voltage source (VREF).

Working Principles

The AD7628KNZ 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 circuitry iteratively approximates the input voltage by successively adjusting the digital code until it converges to the most accurate representation.

Application Field Plans

The AD7628KNZ finds applications in various fields, including but not limited to: - Industrial automation - Data acquisition systems - Medical instrumentation - Test and measurement equipment - Audio processing

Alternative Models

Below are some alternative models that offer similar functionality to the AD7628KNZ:

1. AD7626KNZ: 16-bit ADC with 6 analog input channels.
2. AD7624KNZ: 16-bit ADC with 4 analog input channels.
3. AD7616KNZ: 16-bit ADC with 16 analog input channels.
4. AD7608KNZ: 16-bit ADC with 8 analog input channels.

These alternatives provide options with varying numbers of analog input channels to suit different application requirements.

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