Overview
The ADS1296RIZXGR, produced by Texas Instruments, is part of the ADS129x and ADS129xR family of multichannel, simultaneous sampling, 24-bit, delta-sigma (ΔΣ) analog-to-digital converters (ADCs). These devices are designed with high levels of integration and exceptional performance, enabling the development of scalable medical instrumentation systems with reduced size, power, and overall cost. They are particularly suited for medical electrocardiogram (ECG) and electroencephalogram (EEG) applications.
Key Specifications
| Specification | Value |
|---|---|
| Number of Channels | 8 |
| Resolution | 24-bit |
| Data Rate | 250 SPS to 32 kSPS |
| Input-Referred Noise | 4 μV PP (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 |
| Analog Supply Voltage (AVDD) | 2.7 V to 5.25 V |
| Digital Supply Voltage (DVDD) | 1.65 V to 3.6 V |
| Operating Temperature Range | –40°C to +85°C (industrial grade) |
| Package Options | 64-ball NFBGA, TQFP-64 |
Key Features
- Eight low-noise programmable gain amplifiers (PGAs) and eight high-resolution ADCs.
- Low power consumption: 0.75 mW/channel.
- Built-in right leg drive amplifier, lead-off detection, Wilson central terminal, pace detection, and test signals.
- Integrated respiration impedance measurement (ADS129xR versions).
- Digital pace detection capability.
- Built-in oscillator and reference.
- SPI™-Compatible serial interface.
- Flexible input multiplexer per channel for test, temperature, and lead-off detection.
- Supports systems meeting AAMI EC11, EC13, IEC60601-1, IEC60601-2-27, and IEC60601-2-51 standards.
Applications
- Medical Instrumentation: ECG, EMG, EEG.
- Patient Monitoring: Holter, event, stress, and vital signs including ECG, AED, telemedicine.
- Bispectral Index (BIS), Evoked Audio Potential (EAP), Sleep Study Monitor.
- High-Precision, Simultaneous, Multichannel Signal Acquisition.
Q & A
- What is the resolution of the ADS1296RIZXGR?
The ADS1296RIZXGR has a resolution of 24 bits.
- What is the data rate range of the ADS1296RIZXGR?
The data rate range is from 250 SPS to 32 kSPS.
- What is the input-referred noise of the ADS1296RIZXGR?
The input-referred noise is 4 μV PP (150 Hz BW, G = 6).
- What are the programmable gain options for the ADS1296RIZXGR?
The programmable gain options are 1, 2, 3, 4, 6, 8, or 12.
- Does the ADS1296RIZXGR support medical standards?
Yes, it supports systems meeting AAMI EC11, EC13, IEC60601-1, IEC60601-2-27, and IEC60601-2-51 standards.
- What are the package options for the ADS1296RIZXGR?
The package options include a 64-ball NFBGA and a TQFP-64.
- What is the operating temperature range for the ADS1296RIZXGR?
The operating temperature range is –40°C to +85°C (industrial grade).
- Does the ADS1296RIZXGR have integrated respiration impedance measurement?
Yes, the ADS129xR versions include a fully integrated respiration impedance measurement function.
- What type of serial interface does the ADS1296RIZXGR use?
The ADS1296RIZXGR uses an SPI™-Compatible serial interface.
- Can multiple ADS1296RIZXGR devices be cascaded?
Yes, multiple devices can be cascaded in high channel count systems in a daisy-chain configuration.
