ADS1230IPWG4 datasheet by Texas Instruments

ADS1230IPWG4 Frequently Asked Questions (FAQs)

• What is the recommended layout and placement for the ADS1230IPWG4?
  Texas Instruments recommends a 4-layer PCB with a solid ground plane, and placing the ADS1230IPWG4 close to the analog input signal sources. Additionally, it's recommended to keep the analog and digital grounds separate and connect them at a single point.
• How do I optimize the performance of the ADS1230IPWG4 in noisy environments?
  To optimize performance in noisy environments, use a low-pass filter on the analog input, keep the analog input traces short and away from digital traces, and use a shielded cable for the analog input signal. Additionally, consider using a common-mode filter or a differential amplifier to reject common-mode noise.
• What is the recommended power-up sequence for the ADS1230IPWG4?
  The recommended power-up sequence is to power up the analog supply (AVDD) first, followed by the digital supply (DVDD), and then the clock signal. This ensures that the analog circuitry is stable before the digital circuitry is enabled.
• How do I handle the ADS1230IPWG4's digital output data?
  The ADS1230IPWG4 outputs data in a 24-bit twos-complement format. The data should be read on the falling edge of the SCLK signal, and the data should be latched on the rising edge of the SCLK signal. Additionally, the data should be processed in a way that takes into account the device's offset and gain errors.
• What is the maximum sampling rate of the ADS1230IPWG4?
  The maximum sampling rate of the ADS1230IPWG4 is 80SPS (samples per second) when using the internal clock, and up to 100SPS when using an external clock. However, the actual sampling rate may be limited by the system's noise floor and the desired signal-to-noise ratio.