ADS1191IRSMT

Overview

Category: Integrated Circuit (IC)

Use: Analog Front-End (AFE) for biopotential measurements

Characteristics: - High-resolution, low-power AFE - Designed for medical and fitness applications - Supports simultaneous sampling of multiple channels - Provides amplification, filtering, and digitization of analog signals - Enables accurate measurement of bioelectric signals

Package: Surface Mount Technology (SMT)

Essence: The ADS1191IRSMT is a highly integrated IC that serves as an Analog Front-End (AFE) for biopotential measurements. It offers high resolution and low power consumption, making it suitable for various medical and fitness applications.

Packaging/Quantity: The ADS1191IRSMT is available in a surface mount package. The quantity may vary depending on the supplier.

Specifications

• Resolution: 24 bits
• Input Voltage Range: ±4.5V
• Sampling Rate: Up to 32 kSPS (samples per second)
• Number of Channels: 8
• Power Supply: 2.7V to 5.25V
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The ADS1191IRSMT has a total of 20 pins. The pin configuration is as follows:

Pin 1: VREFP Pin 2: VREFN Pin 3: AVDD Pin 4: DVDD Pin 5: CLK Pin 6: START Pin 7: PWDN Pin 8: DRDY Pin 9: RESET Pin 10: TEST Pin 11: MISO Pin 12: MOSI Pin 13: SCLK Pin 14: CS Pin 15: GPIO1 Pin 16: GPIO2 Pin 17: GPIO3 Pin 18: GPIO4 Pin 19: GNDA Pin 20: GNDD

Functional Features

• Simultaneous sampling of multiple channels allows for efficient data acquisition.
• High-resolution ADC (Analog-to-Digital Converter) ensures accurate measurement of bioelectric signals.
• Integrated amplifiers and filters provide signal conditioning for optimal performance.
• Low power consumption makes it suitable for battery-powered applications.
• Flexible digital interface enables easy integration with microcontrollers or other digital systems.

Advantages and Disadvantages

Advantages: - High resolution for precise measurements - Low power consumption for extended battery life - Simultaneous sampling of multiple channels for efficient data acquisition - Integrated amplifiers and filters for signal conditioning

Disadvantages: - Limited number of channels (8) - Requires external microcontroller or digital system for complete functionality

Working Principles

The ADS1191IRSMT works by amplifying, filtering, and digitizing analog bioelectric signals. It consists of multiple channels that simultaneously sample the input signals. The amplified and filtered signals are then converted into digital format using a high-resolution ADC. The digital data can be further processed or transmitted to external devices for analysis or display.

Detailed Application Field Plans

The ADS1191IRSMT is widely used in various medical and fitness applications, including but not limited to:

1. Electrocardiography (ECG) monitoring systems
2. Electromyography (EMG) devices for muscle activity measurement
3. Electroencephalography (EEG) equipment for brainwave analysis
4. Fitness trackers and wearable health monitoring devices
5. Sleep monitoring systems for sleep disorder diagnosis

Detailed and Complete Alternative Models

1. ADS1299: A higher-channel-count alternative with 24-bit resolution and up to 16 channels.
2. ADS1294: A lower-channel-count alternative with 24-bit resolution and up to 4 channels.
3. ADS1194: A lower-channel-count alternative with 16-bit resolution and up to 4 channels.

These alternative models offer different channel counts and resolutions, allowing users to choose the most suitable option for their specific application requirements.

In conclusion, the ADS1191IRSMT is a highly integrated Analog Front-End (AFE) IC designed for biopotential measurements in medical and fitness applications. With its high resolution, low power consumption, and simultaneous sampling capabilities, it provides accurate and efficient data acquisition for various bioelectric signals.