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ADT7481ARMZ

Dual Channel Temperature Sensor and Over Temperature Alarm

Analog Devices 

ADT7481

Table 7. Temperature Data Format (Local and Remote Temperature High Byte)

Temperature

−55°C

Binary

0 000 00002

0°C

0 000 0000

+1°C

0 000 0001

+10°C

0 000 1010

+25°C

0 001 1001

+50°C

0 011 0010

+75°C

0 100 1011

+100°C

0 110 0100

+125°C

0 111 1101

+127°C

+150°C

0 111 1111

0 111 11113

Offset Binary1

0 000 1001

0 100 0000

0 100 0001

0 100 1010

0 101 1001

0 111 0010

1 000 1011

1 010 0100

1 011 1101

1 011 1111

1 101 0110

1 Offset binary scale temperature values are offset by +64.

2 Binary scale temperature measurement returns 0 for all temperatures <0°C.

3 Binary scale temperature measurement returns 127 for all temperatures >127°C.

The user may switch between measurement ranges at any time.

Switching the range will also switch the data format. The next

temperature result following the switching will be reported back

to the register in the new format. However, the contents of the

limit registers will not change. It is up to the user to ensure that

when the data format changes, the limit registers are repro-

grammed as necessary. More information on this can be found

in the Limit Registers section.

Rev. 0 | Page 11 of 24

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