ZHCSEE1F October 2010 – September 2019 ADS1118
PRODUCTION DATA.
To convert from digital codes to temperature, first check whether the MSB is a 0 or a 1. If the MSB is a 0, simply multiply the decimal code by 0.03125°C to obtain the result. If the MSB = 1, subtract 1 from the result and complement all of the bits. Then multiply the result by –0.03125°C.
Example: The device reads back 0960h: 0960h has an MSB = 0.
0960h × 0.03125°C = 2400 × 0.03125°C = 75°C
Example: The device reads back 3CE0h: 3CE0h has an MSB = 1.
Subtract 1 and complement the result: 3CE0h → 0320h
0320h × (–0.03125°C) = 800 × (–0.03125°C) = –25°C