Overview
The ADS1296IPAGR, produced by Texas Instruments, is a low-power, 6-channel, 24-bit analog-to-digital converter (ADC) designed specifically for biopotential measurements such as electrocardiogram (ECG) and electroencephalogram (EEG) applications. This device is part of the ADS129x family, which integrates multiple channels, simultaneous sampling, and high-resolution delta-sigma (ΔΣ) ADCs with built-in programmable gain amplifiers (PGAs) and an onboard oscillator. The ADS1296IPAGR is optimized for medical instrumentation, offering high levels of integration, low power consumption, and exceptional performance, making it ideal for developing scalable medical systems with reduced size, power, and overall cost.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 6 |
| Resolution | 24-bit |
| Data Rate | 250 SPS to 32 kSPS |
| Input-Referred Noise | 4 μVPP (150 Hz BW, G=6) |
| Input Bias Current | 200 pA |
| Common-Mode Rejection Ratio (CMRR) | –115 dB |
| Programmable Gain | 1, 2, 3, 4, 6, 8, or 12 |
| Power Consumption | 0.75 mW/channel |
| Package Type | 64-TQFP |
| Operating Temperature Range | –40°C to +85°C |
| Interface | SPI™-Compatible Serial Interface |
Key Features
- Low power consumption: 0.75 mW/channel, making it suitable for battery-powered devices.
- High-resolution 24-bit delta-sigma (ΔΣ) ADCs with integrated PGAs.
- Simultaneous sampling of all channels.
- Programmable gain settings (1, 2, 3, 4, 6, 8, or 12).
- Integrated Wilson central terminal (WCT) and Goldberger central terminals (GCT) for ECG applications.
- Support for respiration impedance measurement in the ADS1296R version.
- Compliance with medical standards such as AAMI EC11, EC13, IEC60601-1, IEC60601-2-27, and IEC60601-2-51.
- SPI™-Compatible Serial Interface for data communication.
Applications
- Medical Instrumentation: ECG, EMG, EEG, and other biopotential measurements.
- Patient Monitoring: Holter, event, stress, and vital signs monitoring.
- Telemedicine: Remote patient monitoring systems.
- AED (Automated External Defibrillator) and BIS (Bispectral Index) monitoring.
- Evoked Audio Potential (EAP) and sleep study monitors.
Q & A
- What is the resolution of the ADS1296IPAGR ADC?
The ADS1296IPAGR has a resolution of 24 bits.
- How many channels does the ADS1296IPAGR support?
The ADS1296IPAGR supports 6 channels.
- What is the data rate range of the ADS1296IPAGR?
The data rate range is from 250 SPS to 32 kSPS.
- What is the input-referred noise of the ADS1296IPAGR?
The input-referred noise is 4 μVPP (150 Hz BW, G=6).
- What is the power consumption per channel of the ADS1296IPAGR?
The power consumption per channel is 0.75 mW.
- What package types are available for the ADS1296IPAGR?
The ADS1296IPAGR is available in a 64-TQFP package.
- What is the operating temperature range of the ADS1296IPAGR?
The operating temperature range is –40°C to +85°C.
- Does the ADS1296IPAGR support respiration impedance measurement?
The ADS1296R version supports respiration impedance measurement.
- Is the ADS1296IPAGR compliant with medical standards?
Yes, it is compliant with standards such as AAMI EC11, EC13, IEC60601-1, IEC60601-2-27, and IEC60601-2-51.
- What interface does the ADS1296IPAGR use for data communication?
The ADS1296IPAGR uses an SPI™-Compatible Serial Interface.
