Overview
The ADS1294IPAG is a high-performance, 4-channel, 24-bit analog-to-digital converter (ADC) manufactured by Texas Instruments. Designed for precision data acquisition, this component is particularly suited for applications in medical instrumentation, such as ECG and EEG systems. Its market positioning targets industries requiring high-resolution signal processing with low noise and power efficiency. The ADS1294IPAG stands out for its integration of a programmable gain amplifier (PGA), internal reference, and on-chip oscillator, making it a competitive choice for scalable medical and industrial systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Channels | 4 | Differential inputs | |
| Resolution | 24 | bit | |
| Conversion Rate | 125 to 8,000 | SPS | Programmable |
| Input Type | Differential | ||
| Signal-to-Noise Ratio (SNR) | 107 | dB | |
| Analog Supply Voltage | 2.7 to 5.25 | V | |
| Digital Supply Voltage | 1.65 to 3.6 | V | |
| Package | 64-TQFP | 10x10 mm |
Key Features
- High-resolution 24-bit ADC for precise signal acquisition.
- Integrated PGA with seven gain settings (1 to 12).
- Low noise and high SNR (107 dB) for accurate measurements.
- Flexible input multiplexer for test, temperature, and lead-off detection.
- On-chip oscillator and internal reference for simplified design.
Applications
The ADS1294IPAG is widely used in medical and industrial applications, including:
- Medical Instrumentation: ECG and EEG systems for patient monitoring and diagnostics.
- Industrial Automation: High-precision data acquisition in process control and monitoring systems.
- Portable Devices: Low-power, high-performance solutions for wearable health monitors.
Q & A
1. What is the resolution of the ADS1294IPAG?
The ADS1294IPAG features a 24-bit resolution, ensuring high-precision signal acquisition.
2. What is the maximum sampling rate?
The maximum sampling rate is 8,000 samples per second (SPS).
3. Does it support differential inputs?
Yes, the ADS1294IPAG supports differential inputs for noise reduction and improved signal integrity.
4. What is the operating voltage range?
The analog supply voltage ranges from 2.7 V to 5.25 V, while the digital supply voltage ranges from 1.65 V to 3.6 V.
5. Is the ADS1294IPAG RoHS compliant?
No, the ADS1294IPAG is not RoHS compliant.
6. What is the package type?
It comes in a 64-TQFP (Thin Quad Flat Package) with dimensions of 10x10 mm.
7. Can it be used in portable devices?
Yes, its low power consumption and high performance make it suitable for portable and wearable devices.
8. Does it include an internal reference?
Yes, the ADS1294IPAG includes an internal reference, simplifying system design.
9. What is the SNR of the ADS1294IPAG?
The signal-to-noise ratio (SNR) is 107 dB, ensuring high accuracy in measurements.
10. What are the typical applications?
Typical applications include medical instrumentation (ECG, EEG), industrial automation, and portable health monitoring devices.
