The ADS1296IPAG requires careful PCB layout and placement to minimize noise and ensure optimal performance. TI recommends placing the device close to the electrodes, using a solid ground plane, and keeping analog and digital traces separate. A 4-layer PCB with a dedicated analog ground plane is recommended.
The ADS1296IPAG has programmable gain settings, but finding the optimal gain requires understanding the signal amplitude and noise floor of your specific application. TI recommends using the device's built-in calibration modes to determine the optimal gain settings. Additionally, consider using external amplifiers or filters to condition the signal before it reaches the ADS1296IPAG.
The ADS1296IPAG has built-in lead-off detection, but it's essential to understand the electrode impedance and its impact on the measurement. TI recommends using a lead-off detection circuit that can detect changes in electrode impedance and alert the system to potential issues. Additionally, consider using electrode impedance measurement techniques, such as the ones described in the ADS1296IPAG datasheet.
The ADS1296IPAG is a sensitive device that can be affected by EMI. To ensure EMC, TI recommends using a shielded enclosure, keeping the device away from high-frequency sources, and using EMI filters or shielding on the PCB. Additionally, consider using a common-mode choke or ferrite beads to reduce EMI.
The ADS1296IPAG requires a clean and stable power supply to operate correctly. TI recommends using a low-dropout regulator (LDO) with a high power supply rejection ratio (PSRR) and a low equivalent series resistance (ESR) capacitor. Additionally, consider using a pi-filter or a ferrite bead to filter out high-frequency noise.
ADS1296IPAG datasheet
by Texas Instruments
