I'm looking for a part with four fast comparators (faster than 60ns response time) for a digital power application. I can't find any good way to filter by comparator count, but I manually found TMS320F28050. I'm wondering if there are any lower cost parts that also have four fast comparators? I'm planning on running a DC-DC converter with these comparators, but I thought maybe even a part designed for motor control would work since I would think multiple high-speed comparators would be a common requirement there. Or is the Piccolo my lowest cost choice?