Overview
The ADS1292RIRSMT is a high-performance, low-power, 24-bit analog-to-digital converter (ADC) designed by Texas Instruments. This model is part of the ADS1292 series, specifically tailored for biopotential signal acquisition, such as electrocardiogram (ECG) and electroencephalogram (EEG) applications. Its compact VQFN-32 package and advanced features make it ideal for portable medical devices, fitness monitors, and other low-power applications. The ADS1292RIRSMT stands out for its high integration, including a programmable gain amplifier (PGA), internal reference, and on-board oscillator, which significantly reduce system size and power consumption.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Resolution | 24 | bit | |
| Channels | 2 | ||
| Conversion Rate | 125 SPS to 8 kSPS | ||
| Input Type | Differential | ||
| SNR | 107 | dB | |
| Interface | SPI | ||
| Analog Supply Voltage | 2.7 to 5.25 | V | |
| Digital Supply Voltage | 1.7 to 3.6 | V | |
| Operating Temperature | -40 to +85 | °C | |
| Package | VQFN-32 | 4x4 mm |
Key Features
- Integrated Programmable Gain Amplifier (PGA) for signal conditioning.
- Built-in internal reference and on-board oscillator for simplified design.
- Low power consumption: 335 µW per channel.
- High common-mode rejection ratio (CMRR) of 120 dB.
- Integrated respiratory impedance measurement (ADS1292R version).
- Flexible power-down and standby modes for energy efficiency.
Applications
The ADS1292RIRSMT is widely used in medical and fitness applications, including portable ECG monitors, wearable fitness devices, and biopotential signal acquisition systems. Its high precision and low power consumption make it suitable for battery-operated devices, while its compact size enables integration into space-constrained designs. Additionally, it is used in industrial applications requiring high-resolution data acquisition.
Q & A
1. What is the resolution of the ADS1292RIRSMT?
The ADS1292RIRSMT features a 24-bit resolution, providing high precision for signal acquisition.
2. How many channels does the ADS1292RIRSMT support?
It supports 2 channels for simultaneous signal acquisition.
3. What is the conversion rate of the ADS1292RIRSMT?
The conversion rate ranges from 125 SPS to 8 kSPS, depending on the application requirements.
4. What is the input type of the ADS1292RIRSMT?
It uses differential input to reduce common-mode noise.
5. What is the SNR of the ADS1292RIRSMT?
The signal-to-noise ratio (SNR) is 107 dB, ensuring high-quality signal acquisition.
6. What is the operating temperature range of the ADS1292RIRSMT?
It operates within a temperature range of -40°C to +85°C.
7. What is the package type of the ADS1292RIRSMT?
It is available in a compact VQFN-32 package (4x4 mm).
8. Does the ADS1292RIRSMT support SPI interface?
Yes, it features an SPI-compatible serial interface for communication.
9. What are the typical applications of the ADS1292RIRSMT?
It is commonly used in portable ECG monitors, wearable fitness devices, and biopotential signal acquisition systems.
10. What is the power consumption of the ADS1292RIRSMT?
It consumes 335 µW per channel, making it suitable for low-power applications.
