The ADS1120IPW requires careful layout and placement to minimize noise and ensure accurate conversions. TI recommends placing the device close to the analog signal source, using a solid ground plane, and keeping analog and digital traces separate. Additionally, decoupling capacitors should be placed close to the device's power pins.
To optimize the ADS1120IPW's performance, consider the following: choose the correct gain setting, adjust the sampling rate, and select the appropriate input range. Additionally, ensure proper filtering and shielding to minimize noise, and consider using a dedicated analog power supply.
The ADS1120IPW requires a one-time calibration after power-up. The calibration process involves writing specific registers to configure the device. TI recommends following the calibration procedure outlined in the datasheet, which includes setting the gain, offset, and other parameters.
The ADS1120IPW provides error flags and interrupt signals to indicate errors or exceptions during data conversion. Engineers should implement error handling routines to detect and respond to these flags, such as retrying conversions or resetting the device.
The ADS1120IPW has a maximum junction temperature of 150°C. Engineers should ensure proper thermal design, including heat sinking and airflow, to prevent overheating. Additionally, consider the device's power consumption and thermal resistance when designing the system.
ADS1120IPW datasheet
by Texas Instruments
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