The recommended layout and routing for the ADS7886SBDBVR involves keeping the analog and digital traces separate, using a solid ground plane, and minimizing the length of the analog input traces. Additionally, it's recommended to use a 4-layer PCB with a dedicated analog ground plane and to avoid routing digital traces under the ADC.
To optimize the performance of the ADS7886SBDBVR in noisy environments, use a low-pass filter at the analog input, use a shielded cable for the analog input, and consider using a common-mode filter. Additionally, ensure that the power supply is well-regulated and decoupled, and consider using a ferrite bead or a common-mode choke to filter out high-frequency noise.
The maximum sampling rate of the ADS7886SBDBVR is 1.5 MSPS (mega-samples per second). However, the actual sampling rate may be limited by the system's clock frequency, the analog input bandwidth, and the digital interface.
The ADS7886SBDBVR does not require calibration. It has an internal calibration circuit that performs a self-calibration sequence during power-up. However, if the ADC is used in a system that requires high accuracy, an external calibration procedure may be necessary to compensate for system-level errors.
The power consumption of the ADS7886SBDBVR depends on the operating mode and the clock frequency. In normal operation, the typical power consumption is around 15 mW at 1.5 MSPS. In power-down mode, the typical power consumption is around 1.5 μW.
ADS7886SBDBVR datasheet
by Texas Instruments
