ADS1198CPAGR

Product Overview

Category

The ADS1198CPAGR belongs to the category of integrated circuits (ICs) specifically designed for biomedical applications.

Use

This IC is primarily used in medical devices for acquiring and processing bioelectric signals, such as electrocardiograms (ECGs) and electromyograms (EMGs).

Characteristics

• High-resolution: The ADS1198CPAGR offers high-resolution analog-to-digital conversion, enabling accurate signal acquisition.
• Low power consumption: This IC is designed to operate with low power consumption, making it suitable for portable medical devices.
• Noise filtering: It incorporates built-in filters to reduce noise interference and enhance signal quality.
• Flexible input configuration: The ADS1198CPAGR supports multiple electrode configurations, allowing for versatile signal acquisition.

Package

The ADS1198CPAGR comes in a small form factor package known as TQFP (Thin Quad Flat Pack), which facilitates easy integration into electronic systems.

Essence

The essence of the ADS1198CPAGR lies in its ability to acquire and process bioelectric signals accurately and efficiently, making it an essential component in medical devices.

Packaging/Quantity

This IC is typically packaged in reels or tubes, containing a specific quantity per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Resolution: 24 bits
• Sampling Rate: Up to 32 kSPS (samples per second)
• Input Channels: 8 differential or 16 single-ended channels
• Supply Voltage Range: 2.7V to 5.25V
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The ADS1198CPAGR has a total of 48 pins, each serving a specific function. Here is a detailed pin configuration:

1. VREFP: Positive reference voltage input
2. VREFN: Negative reference voltage input
3. AVDD: Analog power supply
4. DVDD: Digital power supply
5. RESET: Reset pin for device initialization
6. CLK: Clock input for synchronization
7. CS: Chip select input
8. DRDY: Data ready output
9. START: Start conversion input
10. PWDN: Power-down control input
11. TEST: Test mode selection input 12-19. AINP0-AINP7: Positive analog input channels 20-27. AINN0-AINN7: Negative analog input channels 28-35. GPIO0-GPIO7: General-purpose input/output pins 36-43. DGND: Digital ground 44-48. AGND: Analog ground

Functional Features

1. High-resolution ADC: The ADS1198CPAGR provides 24-bit resolution, ensuring accurate signal acquisition and processing.
2. Flexible input configuration: It supports both differential and single-ended input configurations, allowing for versatile electrode arrangements.
3. Built-in filters: This IC incorporates programmable filters to reduce noise interference and enhance signal quality.
4. Low power consumption: Designed for portable medical devices, the ADS1198CPAGR operates with low power consumption, prolonging battery life.

Advantages and Disadvantages

Advantages

• High-resolution ADC ensures precise signal acquisition.
• Versatile input configuration accommodates various electrode arrangements.
• Built-in filters improve signal quality by reducing noise interference.
• Low power consumption extends battery life in portable medical devices.

Disadvantages

• Limited number of input channels (8 differential or 16 single-ended).
• Higher cost compared to lower-resolution alternatives.
• Requires external components for complete system integration.

Working Principles

The ADS1198CPAGR works based on the principle of analog-to-digital conversion. It receives bioelectric signals from the input channels, amplifies and filters them to enhance signal quality, and then converts them into digital data using its high-resolution ADC. The digital data can be further processed or transmitted for analysis.

Detailed Application Field Plans

The ADS1198CPAGR finds extensive application in various medical devices, including: - Electrocardiography (ECG) monitors - Electromyography (EMG) devices - Portable health monitoring systems - Sleep apnea detection devices - Stress testing equipment

Detailed and Complete Alternative Models

1. ADS1298: Similar to the ADS1198CPAGR, this IC offers 24-bit resolution and supports up to 8 differential or 16 single-ended channels.
2. ADS1294: This IC provides a lower-cost alternative with 24-bit resolution and support for up to 4 differential or 8 single-ended channels.
3. ADS1256: A lower-resolution option with 24-bit ADC and support for up to 8 differential or 15 single-ended channels.

These alternative models offer varying features and specifications, allowing designers to choose the most suitable option based on their specific requirements