ADS7816UB/2K5

Product Overview

• Category: Analog-to-Digital Converter (ADC)
• Use: Converts analog signals into digital data for processing
• Characteristics:
  • High-resolution ADC with 12-bit resolution
  • Low power consumption
  • Serial interface for easy integration
  • Wide operating voltage range
• Package: SOIC-8
• Essence: The ADS7816UB/2K5 is a high-performance ADC designed for various applications requiring accurate and fast analog-to-digital conversion.
• Packaging/Quantity: Available in tape and reel packaging, with 2500 units per reel.

Specifications

• Resolution: 12 bits
• Conversion Rate: Up to 200 kSPS (thousand samples per second)
• Operating Voltage Range: 2.7V to 5.5V
• Power Consumption: 1.3 mW (typical)
• Input Voltage Range: 0V to Vref (analog supply voltage)
• Interface: SPI-compatible serial interface

Pin Configuration

The ADS7816UB/2K5 has an SOIC-8 package with the following pin configuration:

```

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| | | 1 2 | | 3 4 | | 5 6 | | 7 8 | |___________| ```

1. VDD: Power supply voltage
2. GND: Ground reference
3. CS: Chip select input
4. SCLK: Serial clock input
5. DIN: Serial data input
6. DOUT: Serial data output
7. AGND: Analog ground reference
8. REF: Reference voltage input

Functional Features

• High-resolution conversion: The 12-bit resolution ensures accurate digitization of analog signals.
• Low power consumption: The ADC operates with low power consumption, making it suitable for battery-powered applications.
• Serial interface: The SPI-compatible serial interface simplifies integration with microcontrollers and other digital devices.
• Wide operating voltage range: The ADC can operate within a wide voltage range, providing flexibility in various applications.

Advantages and Disadvantages

Advantages: - High resolution for precise measurements - Low power consumption extends battery life - Easy integration with microcontrollers - Wide operating voltage range allows for versatile applications

Disadvantages: - Limited to 12-bit resolution, may not be suitable for applications requiring higher precision - Requires an external reference voltage for accurate conversions

Working Principles

The ADS7816UB/2K5 utilizes successive approximation register (SAR) architecture to convert analog signals into digital data. It samples the input voltage and compares it to a reference voltage using a binary search algorithm. The conversion result is then outputted through the serial interface.

Detailed Application Field Plans

The ADS7816UB/2K5 is widely used in various applications, including but not limited to: - Data acquisition systems - Industrial automation - Medical equipment - Portable instruments - Sensor interfaces

Alternative Models

• ADS7817: 10-bit resolution ADC with similar features
• ADS7822: 8-channel, 12-bit resolution ADC with I2C interface
• ADS7870: 14-bit resolution ADC with differential inputs

These alternative models provide different resolutions and interface options to suit specific application requirements.

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