4 ms·
1. Single bit ADC/DACs are trivial. 2. CDAC + switched capacitor multiplier + SAR ADC can be competitive with digital multiplier.
by twtw 9y ago
1. Single bit ADC/DACs are trivial.
2. CDAC + switched capacitor multiplier + SAR ADC can be competitive with digital multiplier.
- deepnotderp 9y ago1. Yes, and the advantage of analog is significantly reduced as well, as a binary multiply and add then reduce to single gate operations. 2. Switched capacitor multipliers (actually almost anything analog) have difficulty scaling with feature shrinks, and that's before considering noise. E.g. see all the difficulties Xilinx went through to get 16nm FinFET ADCs efficiently working.