ADS7958SRGET datasheet by Texas Instruments

ADS7958SRGET Frequently Asked Questions (FAQs)

• What is the recommended layout and routing for the ADS7958SRGET?
  The recommended layout and routing for the ADS7958SRGET involves keeping the analog and digital grounds 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 power plane and a dedicated digital power plane.
• How do I optimize the performance of the ADS7958SRGET in noisy environments?
  To optimize the performance of the ADS7958SRGET in noisy environments, use a low-pass filter at the input, use a shielded cable for the analog input, and consider using a common-mode filter. Additionally, ensure that the analog and digital grounds are properly separated and that the power supply is well-regulated.
• What is the maximum sampling rate that can be achieved with the ADS7958SRGET?
  The maximum sampling rate of the ADS7958SRGET is 250 kSPS. However, the actual sampling rate may be limited by the system's clock frequency, the analog input bandwidth, and the digital interface used.
• How do I calibrate the ADS7958SRGET for optimal performance?
  The ADS7958SRGET does not require calibration. However, it's recommended to perform a system-level calibration to ensure that the ADC is operating within the specified accuracy. This can be done by applying a known input voltage and measuring the output code.
• What is the power consumption of the ADS7958SRGET?
  The power consumption of the ADS7958SRGET depends on the operating mode and the clock frequency. In normal mode, the typical power consumption is around 15 mW at 3.3 V and 10 MHz clock frequency. In power-down mode, the typical power consumption is around 1.5 mW.