ADS830E/2K5 datasheet by Texas Instruments

ADS830E/2K5 Frequently Asked Questions (FAQs)

• What is the recommended layout and routing for the ADS830E/2K5 to minimize noise and ensure optimal performance?
  Texas Instruments recommends a 4-layer PCB with a solid ground plane, and to keep the analog and digital signals separate. The input and output traces should be as short as possible and shielded from digital signals. Additionally, decoupling capacitors should be placed close to the power pins.
• How do I calibrate the ADS830E/2K5 to achieve the highest accuracy?
  The ADS830E/2K5 has an internal calibration circuit that can be used to calibrate the device. The calibration process involves applying a known input voltage and adjusting the internal calibration registers to achieve the desired accuracy. The calibration process should be performed at the operating temperature range of the device.
• What is the maximum input voltage range for the ADS830E/2K5, and how does it affect the accuracy?
  The maximum input voltage range for the ADS830E/2K5 is ±2.5V. Exceeding this range can affect the accuracy of the device. The device has an internal voltage limiter that prevents damage from overvoltage, but it's still important to ensure that the input voltage stays within the recommended range.
• How does the ADS830E/2K5 handle common-mode voltage, and what are the implications for the system design?
  The ADS830E/2K5 has a high common-mode rejection ratio (CMRR) of 80 dB, which means it can handle common-mode voltages up to ±2.5V. However, the system design should ensure that the common-mode voltage is within the recommended range to maintain accuracy and prevent damage to the device.
• What is the power consumption of the ADS830E/2K5, and how does it affect the system power budget?
  The power consumption of the ADS830E/2K5 is typically 15 mW at 2.5V supply voltage. This is relatively low power consumption, but it should still be considered in the system power budget, especially in battery-powered systems.