9.2.1.2 Detailed Design Procedure

The usually recommended RC filter in front of a ΔΣ modulator to improve signal-to-noise performance of the signal path, is not required for the AMC1305. By design, the input bandwidth of the analog front-end of the device is limited to 1 MHz.

For modulator output bit-stream filtering, a device from TI's TMS320F2837x family of dual-core MCUs is recommended. This family supports up to eight channels of dedicated hardwired filter structures that significantly simplify system level design by offering two filtering paths per channel: one providing high accuracy results for the control loop and one fast response path for overcurrent detection.