When high-speed mode is enabled, the AIN0 (positive) and AIN1 (negative) pins can be used to sample signals with a bandwidth of up to 500 kHz.
High-speed mode is enabled by the HIGHSPEED field of the register CH[n].CONFIG.
In high-speed mode, AIN0 and AIN1 can be configured
as one of the following:
- A single-ended input (AIN0 vs GND), with AIN1 not connected.
- AIN0 as the positive side of a differential pair, with AIN1 as the negative input.
The other channels ( AIN[2..7]) cannot be used in high-speed mode.
CHOPPING is not available in high-speed mode.