AD7676 with AD8021 drivers

We have a telemetry deck that uses AD8021s as a single-ended to differential driver for an AD7676 PulSAR ADC as documented in the AD7676 data sheet.  We want to make sure that when using +/12V supplies for the AD8021s, their inherent current limiting is sufficient to prevent damage to the AD7676 input and its protection diodes.  Thank you.