ADS7959SDBT datasheet by Texas Instruments

ADS7959SDBT Frequently Asked Questions (FAQs)

• What is the recommended layout and routing for the ADS7959SDBT to achieve optimal performance?
  Texas Instruments provides a recommended layout and routing guide in the ADS7959SDBT evaluation module user's guide (SLAU445). It's essential to follow this guide to minimize noise, ensure signal integrity, and achieve optimal performance.
• How do I calibrate the ADS7959SDBT to achieve the highest accuracy?
  The ADS7959SDBT has an internal calibration circuit that can be used to calibrate the device. Refer to the calibration procedure outlined in the datasheet (section 8.3.1) and the application note 'ADS7959 Calibration and Verification' (SLAA642).
• What is the maximum sampling rate I can achieve with the ADS7959SDBT, and how do I configure it?
  The maximum sampling rate of the ADS7959SDBT is 2 MSPS. To achieve this rate, you need to configure the device in the 'Fast' mode (CLKDIV = 0) and use an external clock source. Refer to the datasheet (section 7.3.1) for more information on clocking and sampling rate configuration.
• How do I handle the digital output data from the ADS7959SDBT, and what is the output data format?
  The ADS7959SDBT outputs 16-bit digital data in a binary two's complement format. The output data is available on the DOUT pin and is clocked out on the rising edge of the SCLK pin. You can use a microcontroller or FPGA to handle the digital output data and perform further processing or analysis.
• What is the power consumption of the ADS7959SDBT, and how can I reduce it?
  The power consumption of the ADS7959SDBT depends on the operating mode and sampling rate. In the 'Normal' mode, the typical power consumption is around 15 mW. To reduce power consumption, you can use the 'Low-Power' mode (PDWN = 1), which reduces the power consumption to around 5 mW. Additionally, you can use the 'Shutdown' mode (SD = 1) to further reduce power consumption to around 1 μW.