ADS1194CZXGT

Product Overview

Category

The ADS1194CZXGT belongs to the category of integrated circuits (ICs) specifically designed for biomedical applications.

Use

This IC is primarily used in medical devices and equipment for measuring and monitoring bioelectric signals, such as electrocardiograms (ECGs).

Characteristics

• High-resolution: The ADS1194CZXGT offers high-resolution data acquisition, enabling accurate measurement of bioelectric signals.
• Low power consumption: This IC is designed to operate with low power consumption, making it suitable for portable and battery-powered medical devices.
• Noise reduction: It incorporates advanced noise reduction techniques to ensure reliable and clear signal acquisition.
• High input impedance: The IC features a high input impedance, allowing it to interface with various types of electrodes used in biomedical applications.

Package

The ADS1194CZXGT is available in a small form factor package, such as a 32-pin QFN (Quad Flat No-Lead) package.

Essence

The essence of the ADS1194CZXGT lies in its ability to accurately acquire and process bioelectric signals, providing vital information for medical diagnosis and monitoring.

Packaging/Quantity

This IC is typically sold in reels or trays, with a standard quantity of 250 units per reel/tray.

Specifications

• Resolution: 24 bits
• Sampling Rate: Up to 32 kSPS (samples per second)
• Input Channels: 4 differential channels
• Supply Voltage: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Interface: SPI (Serial Peripheral Interface)

Detailed Pin Configuration

1. VDD: Power supply voltage
2. VREFP: Positive reference voltage
3. VREFN: Negative reference voltage
4. AVDD: Analog power supply voltage
5. DVDD: Digital power supply voltage
6. CLK: Clock input for SPI interface
7. CS: Chip select for SPI interface
8. DIN: Data input for SPI interface
9. DOUT: Data output for SPI interface
10. DRDY: Data ready output
11. RESET: Reset input 12-15. INP1, INN1, INP2, INN2: Differential input channels 1 and 2 16-19. INP3, INN3, INP4, INN4: Differential input channels 3 and 4 20-23. REFOUTP, REFOUTN, REFINP, REFNN: Reference voltage inputs and outputs
12. TEST: Test mode pin 25-32. GND: Ground pins

Functional Features

• High-resolution data acquisition
• Low noise and distortion
• Programmable gain amplifier (PGA)
• Lead-off detection capability
• Built-in filter options for signal conditioning
• Flexible power management options

Advantages and Disadvantages

Advantages

• Accurate and reliable bioelectric signal acquisition
• Low power consumption for portable devices
• High input impedance for compatibility with various electrodes
• Noise reduction techniques for clear signal acquisition

Disadvantages

• Limited number of input channels (4)
• Requires external microcontroller or processor for data processing and analysis

Working Principles

The ADS1194CZXGT operates based on the principle of differential amplification and analog-to-digital conversion. It amplifies the small bioelectric signals received from the electrodes, filters out unwanted noise, and converts the analog signals into digital format for further processing.

Detailed Application Field Plans

The ADS1194CZXGT is widely used in various medical applications, including: - Electrocardiography (ECG) devices - Holter monitors - Portable ECG recorders - Stress testing equipment - Sleep monitoring devices

Detailed and Complete Alternative Models

1. ADS1191CZXGT: Single-channel version of the ADS1194CZXGT.
2. ADS1192CZXGT: Dual-channel version of the ADS1194CZXGT.
3. ADS1294CZXGT: Similar to ADS1194CZXGT but with additional features for higher performance.

These alternative models offer similar functionality and are suitable replacements depending on specific application requirements.

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