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TMP102AIDRLT Folha de dados(PDF) 7 Page - Burr-Brown (TI)

[Old version datasheet] Texas Instruments acquired Burr-Brown Corporation. Click here to check the latest version.
Nome de Peças TMP102AIDRLT
Descrição Electrónicos  Low Power Digital Temperature Sensor With SMBus??Two-Wire Serial Interface in SOT563
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Fabricante Electrônico  BURR-BROWN [Burr-Brown (TI)]
Página de início  http://www.burr-brown.com
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TMP102AIDRLT Folha de dados(HTML) 7 Page - Burr-Brown (TI)

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CONFIGURATION REGISTER
ALERT (AL Bit)
CONVERSION RATE
EXTENDED MODE (EM)
TMP102
SBOS397 – AUGUST 2007
Table 6. 13-Bit Temperature Data Format
TEMPERATURE (
°C)
DIGITAL OUTPUT (BINARY)
HEX
150
0 1001 0110 0000
0960
128
0 1000 0000 0000
0800
127.9375
0 0111 1111 1111
07FF
100
0 0110 0100 0000
0640
80
0 0101 0000 0000
0500
75
0 0100 1011 0000
04B0
50
0 0011 0010 0000
0320
25
0 0001 1001 0000
0190
0.25
0 0000 0000 0100
0004
0
0 0000 0000 0000
0000
–0.25
1 1111 1111 1100
1FFC
–25
1 1110 0111 0000
1E70
–55
1 1100 1001 0000
1C90
The Configuration Register is a 16-bit read/write
The AL bit is a read-only function. Reading the AL bit
register used to store bits that control the operational
will provide information about the comparator mode
modes
of
the
temperature
sensor.
Read/write
status. The state of the POL bit inverts the polarity of
operations are performed MSB first. The format and
data returned from the AL bit. For POL = 0, the AL
power-up/reset value of the Configuration Register is
bit will read as '1' until the temperature equals or
shown in Table 7. For compatability, the first byte
exceeds THIGH for the programmed number of
corresponds to the Configuration Register in the
consecutive faults, causing the AL bit to read as '0'.
TMP75 and TMP275. All registers are updated byte
The AL bit will continue to read as '0' until the
by byte.
temperature falls below TLOW for the programmed
number of consecutive faults, when it will again read
Table 7. Configuration and Power-Up/Reset
as '1'. The status of the TM bit does not affect the
Format
status of the AL bit.
BYTE
D7
D6
D5
D4
D3
D2
D1
D0
OS
R1
R0
F1
F0
POL
TM
SD
1
The conversion rate bits, CR1 and CR0, configure
0
1
1
0
0
0
0
0
the TMP102 for conversion rates of 8Hz, 4Hz, 1Hz,
CR1
CR0
AL
EM
0
0
0
0
2
or 0.25Hz. The default rate is 4Hz. The TMP102 has
1
0
1
0
0
0
0
0
a typical conversion time of 26ms. To achieve
different conversion rates, the TMP102 makes a
conversion and after that powers down and waits for
the appropriate delay set by CR1 and CR0. Table 8
The Extended mode bit configures the device for
shows the settings for CR1 and CR0.
Normal mode operation (EM = 0) or Extended mode
operation
(EM
=
1).
In
Normal
mode,
the
Table 8. Conversion Rate Settings
Temperature
Register
and
high-
and
low-limit
CR1
CR0
CONVERSION RATE
registers use a 12-bit data format. Normal mode is
used to make the TMP102 compatible with the
0
0
0.25Hz
TMP75.
0
1
1Hz
Extended mode (EM = 1) allows measurement of
1
0
4Hz (default)
temperatures above +128
°C by configuring the
1
1
8Hz
Temperature
Register,
and
high-
and
low-limit
registers, for 13-bit data format.
7
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