Datasheet

STDS75 Operation
Doc ID 13297 Rev 9 15/38
2.7 Temperature data format
Tabl e 3 shows the relationship between the output digital data and the external temperature
for 12-bit resolution.
Temperature data for temperature, T
OS
and T
HYS
registers is represented by 9-bit, 10-bit,
11-bit, and 12-bit depending upon the resolution bits RC1, RC0 (bits 6 and 5) in the
configuration register (see Table 7 on page 17). The default resolution is 9-bits.
The left-most hot in the output data stream controls temperature polarity information for
each conversion. If the sign bit is '0', the temperature is positive and of the sign bit is '1', the
temperature is negative.
Table 3. Relationship between temperature and digital output
Temperature
Digital
output
(HEX)
Sign
Number of bits used by
conversion resolution
9 101112
Always
zero
12-bit resolution 0000
11- bit resolution 0 0000
10-bit resolution 0 0 0000
9-bit resolution 0 0 0 0000
+125 °C 0 111 1101 0 0 0 0 0000 7D00
+25.0625 °C 0 001 1001 0 0 0 1 0000 1910
+10.125 °C 0 000 1010 0 0 1 0 0000 0A20
+0.5 °C 0 000 0000 1 0 0 0 0000 0080
0 °C 0 000 0000 0 0 0 0 0000 0000
–0.5 °C 1 111 1111 1 0 0 0 0000 FF80
–10.25 °C 1 111 0101 1 1 1 0 0000 F5E0
–25.0625 °C 1 110 0110 1 1 1 1 0000 E6F0
–55 °C 1 100 1001 0 0 0 0 0000 C900