Table 1: Power consumption and conversion time.

Codec chipPower consumption (mW)Conversion time per value (us)

DS2164 100 mW <375 us
Cmx639 6.27 mW 125–500 us
TP3064 70 mW 290 us
MC14550x 40 mW 125 us
Software ADPCM 17 us + 52 us = 69 us