ADS1296RIZXGR

The ADS1296RIZXGR is an 8-channel, 24-bit delta-sigma analog-to-digital converter with integrated programmable-gain amplifiers (PGAs) designed for biopotential measurements (EEG, ECG, EMG). It provides simultaneous sampling across all channels, low-noise front end, and a flexible SPI-compatible interface.
Key features
- 8 input channels with per-channel programmable gains
- Simultaneous sampling and 24-bit resolution
- Integrated lead-off detection and bias/RLD drive
- Internal reference buffer options and programmable data rates (up to tens of kSPS)
- Low power, suitable for wearable/medical devices
- SPI control and data output
Typical applications
- EEG headsets, ECG/ECG monitors, EMG systems, other biopotential instrumentation
Quick usage notes
- Connect electrodes to INx inputs, configure per-channel gains, data rate, and operating mode
- Read 24-bit samples via SPI; use lead-off detection to monitor electrode contact
- Use the RLD/bias features to maintain patient safety and signal integrity
Suffix RIZXGR indicates the specific RoHS-compliant packaging variant.

Key features of ADS1296RIZXGR (8-channel, 24-bit biopotential AFE):
- 8 differential channels with on-chip programmable gain amplifiers (PGA) per channel (gain 1× to 24×)
- 24-bit delta-sigma ADC for high-resolution biopotential measurements (EEG/ECG)
- Integrated signal chain: input multiplexer, reference buffer, and bias/Right-Leg Drive (RLD)
- Lead-off detection and electrode impedance measurement for quality monitoring
- Simultaneous-sampling architecture across channels with flexible data rates
- SPI-compatible control interface with data-ready signaling (DRDY); supports continuous or burst readout
- Low-noise, low-power design suitable for portable/medical devices
- Narrow-band filtering and reference options to improve common-mode rejection
- Robust, industry-standard packaging options and temperature range for clinical/industrial use
Notes: Always check the latest datasheet for exact data-rate ranges, pinout, and environmental specs for your specific package variant.

- Pin count: 28-pin package.
- Function: ADS1296RIZXGR is an 8-channel, low-noise, 24-bit delta-sigma analog-front-end ADC for biopotential measurements (EEG/ECG) with integrated programmable-gain amplifiers, reference/lead-off features, and a SPI-compatible interface for control and data readout.

- Manufacturer: Texas Instruments (TI).
- What kind of company: An American multinational semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing integrated circuits.

- EEG/ERP acquisition for clinical, research, and wearable headsets
- ECG and cardiac monitoring (Holter/telemetry)
- EMG and neuromuscular diagnostics
- Evoked potentials and intraoperative monitoring
- Sleep studies and polysomnography
- Portable/ambulatory biopotential monitoring and wearables
- Brain–computer interfaces and neurofeedback systems
- Medical research instrumentation for biopotential sensing

The ADS1296RIZXGR comes in a 28‑lead LQFP (lead‑frame quad flat package), RoHS/Green compliant.