ADS7825PG4

Overview

Category: Integrated Circuit (IC)

Use: Analog-to-Digital Converter (ADC)

Characteristics: - High-resolution ADC - Low power consumption - Small form factor - Serial interface - Wide input voltage range

Package: PG4 package

Essence: The ADS7825PG4 is a high-performance, 12-bit ADC designed for various applications that require accurate analog-to-digital conversion.

Packaging/Quantity: Available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Resolution: 12 bits
• Input Voltage Range: 0V to Vref
• Conversion Time: 3.2 µs (typical)
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Interface: I2C-compatible serial interface

Pin Configuration

The ADS7825PG4 features a 10-pin PG4 package with the following pin configuration:

1. VDD - Power supply voltage
2. GND - Ground
3. SDA - Serial data input/output
4. SCL - Serial clock input
5. ADDR - Address selection
6. AIN0 - Analog input channel 0
7. AIN1 - Analog input channel 1
8. AIN2 - Analog input channel 2
9. AIN3 - Analog input channel 3
10. REF - Reference voltage input

Functional Features

• High-resolution conversion: The ADS7825PG4 provides 12-bit resolution, allowing for precise analog-to-digital conversion.
• Low power consumption: With its low power design, the ADC minimizes energy consumption, making it suitable for battery-powered devices.
• Serial interface: The I2C-compatible serial interface enables easy integration with microcontrollers and other digital devices.
• Wide input voltage range: The ADC supports a wide input voltage range from 0V to Vref, accommodating various signal levels.

Advantages and Disadvantages

Advantages: - High resolution for accurate conversion - Low power consumption for energy efficiency - Small form factor for space-constrained applications - Serial interface for easy integration - Wide input voltage range for versatile usage

Disadvantages: - Limited number of analog input channels (4 channels) - Requires an external reference voltage

Working Principles

The ADS7825PG4 operates based on the successive approximation register (SAR) architecture. It converts analog signals into digital data by comparing the input voltage against a reference voltage and generating a binary representation of the analog value.

The ADC utilizes an internal clock and control circuitry to perform the conversion process. The converted digital data is then made available through the serial interface for further processing or storage.

Detailed Application Field Plans

The ADS7825PG4 is widely used in various applications that require accurate analog-to-digital conversion, including but not limited to:

1. Industrial automation systems
2. Data acquisition systems
3. Medical equipment
4. Instrumentation and measurement devices
5. Consumer electronics

Detailed and Complete Alternative Models

1. ADS7825E - Similar specifications and features, but available in an SOIC package.
2. ADS7825U - Similar specifications and features, but available in a TSSOP package.
3. ADS7825P - Similar specifications and features, but available in a PDIP package.

These alternative models provide flexibility in terms of package options while maintaining similar performance characteristics to the ADS7825PG4.

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