JAJSOX0A March 2024 – June 2024 ADS127L18
ADVANCE INFORMATION
The optional input precharge buffers reduce settling time and bandwidth requirements of the signal driver. Enable the input precharge buffers when the input driver bandwidth is below 10MHz, or if an appreciable distance exists between the driver and ADC inputs. For higher bandwidth drivers, disable the precharge buffers to reduce power consumption. However, in any case, full-rated THD and SNR data sheet performance is realized when the input precharge buffers are active. Slower speed modes operate the modulator at a slower clock rate, thus the driver has more time to settle between the modulator sampling transients. See the related single-channel ADC THP210 and ADS127L11 Performance application note for details of the THP210 driver performance.