ADS7828E/2K5

Product Overview

Category

The ADS7828E/2K5 belongs to the category of analog-to-digital converters (ADCs).

Use

This product is primarily used for converting analog signals into digital data, making it suitable for various applications in industries such as telecommunications, industrial automation, and consumer electronics.

Characteristics

• High-resolution: The ADS7828E/2K5 offers a resolution of 12 bits, ensuring accurate conversion of analog signals.
• Low power consumption: It operates at a low power supply voltage, making it energy-efficient.
• Fast conversion rate: With a maximum sampling rate of 200 kilosamples per second (ksps), it can quickly convert analog signals into digital form.
• Wide input voltage range: The ADC accepts input voltages ranging from 0 to Vref, providing flexibility in signal acquisition.
• Small package size: The ADS7828E/2K5 comes in a compact package, allowing for space-saving integration into electronic systems.

Package and Quantity

The ADS7828E/2K5 is available in a small outline integrated circuit (SOIC) package. It is typically sold in reels containing a quantity of 250 units.

Specifications

• Resolution: 12 bits
• Sampling Rate: Up to 200 ksps
• Input Voltage Range: 0 to Vref
• Power Supply Voltage: 2.7V to 5.5V
• Package Type: SOIC
• Package Quantity: 250 units per reel

Pin Configuration

The ADS7828E/2K5 has a total of 16 pins, which are assigned specific functions as follows:

1. VDD - Power supply voltage input
2. GND - Ground reference
3. SDA - Serial data input/output
4. SCL - Serial clock input
5. ADDR0 - Address bit 0
6. ADDR1 - Address bit 1
7. ADDR2 - Address bit 2
8. ADDR3 - Address bit 3
9. AIN0 - Analog input channel 0
10. AIN1 - Analog input channel 1
11. AIN2 - Analog input channel 2
12. AIN3 - Analog input channel 3
13. AIN4 - Analog input channel 4
14. AIN5 - Analog input channel 5
15. AIN6 - Analog input channel 6
16. AIN7 - Analog input channel 7

Functional Features

• Multi-channel conversion: The ADS7828E/2K5 can sequentially convert analog signals from up to eight different channels.
• I2C interface: It utilizes the I2C communication protocol for easy integration with microcontrollers and other digital devices.
• Programmable gain amplifier: The ADC includes a programmable gain amplifier that allows for amplification of weak analog signals, enhancing signal accuracy.
• Internal reference voltage: It features an internal reference voltage source, eliminating the need for an external reference.

Advantages and Disadvantages

Advantages

• High resolution ensures accurate conversion of analog signals.
• Low power consumption makes it energy-efficient.
• Fast conversion rate enables quick data acquisition.
• Wide input voltage range provides flexibility in signal acquisition.
• Compact package size allows for space-saving integration.

Disadvantages

• Limited number of analog input channels (up to eight).
• Requires an external microcontroller or digital device for control and data processing.

Working Principles

The ADS7828E/2K5 operates by sampling the analog input voltage and converting it into a corresponding digital value using an internal successive approximation register (SAR) algorithm. The converted digital data is then transmitted via the I2C interface to an external microcontroller or digital device for further processing.

Detailed Application Field Plans

The ADS7828E/2K5 can be applied in various fields, including:

1. Telecommunications: It can be used for signal acquisition in telecommunication systems, such as voice and data transmission equipment.
2. Industrial Automation: The ADC is suitable for monitoring and control applications in industrial automation systems, enabling precise measurement of analog signals.
3. Consumer Electronics: It can be integrated into consumer electronic devices, such as audio equipment and instrumentation, for accurate signal conversion.

Detailed and Complete Alternative Models

• ADS7828E/2K5R - Similar to the ADS7828E/2K5 but available in a different package (QFN).
• ADS7828E/4K5 - A higher-resolution version with 14-bit resolution.
• ADS7828E/1K5 - A lower-resolution version with 10-bit resolution.

These alternative models offer similar functionality but may vary in terms of resolution, package type, and quantity per reel.

In conclusion, the ADS7828E/2K5 is a