AMC7812 Datasheet, PDF (62/92 Pages) Texas Instruments – 12-Bit ANALOG MONITORING AND CONTROL SOLUTION with Multichannel ADC, DACs, and Temperature Sensors

AMC7812
SBAS513D – JANUARY 2011 – REVISED OCTOBER 2012
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TEMPERATURE CONVERSION RATE REGISTER (Read/Write, Address = 0Bh)
When using the SPI, the following bit configuration must be used; default = 0007h.
MSB
BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10
0
0
0
0
0
0
BIT 9
0
BIT 8
0
BIT 7
0
BIT 6
0
BIT 5
0
BIT 4
0
BIT 3
0
BIT 2
R2
BIT 1
R1
LSB
BIT 0
R0
When using the I²C interface, the following bit configuration must be used; default = 07FFh.
MSB
BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10
0
0
0
0
0
R2
BIT 9
R1
BIT 8
R0
BIT 7
1
BIT 6
1
BIT 5
1
BIT 4
1
BIT 3
1
BIT 2
1
BIT 1
1
LSB
BIT 0
1
The bit descriptions are shown in Table 12.
Table 12. Temperature Conversion Time
R2
R1
R0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
CONVERSION TIME
128x minimum
64x minimum
32x minimum
16x minimum
8x minimum
4x minimum
2x minimum
Minimum cycle time
Table 13. Temperature Monitoring Cycle Time
TEMPERATURE SENSOR STATUS
Local sensor is active, remote sensors are disabled or in power-down.
One remote sensor is active and RC = '0', local sensor and one remote sensor are disabled or in power-down.
One remote sensor is active and RC = '1', local sensor and one remote sensor are disabled or in power-down.
One remote sensor and local sensor are active and RC = '0', one remote sensor is disabled or in power-down.
One remote sensor and local sensor are active and RC = '1', one remote sensor is disabled or in power-down.
Two remote sensors are active and RC = '0', local sensor is disabled or in power-down.
Two remote sensors are active and RC = '1', local sensor is disabled or in power-down.
All sensors are active and RC = '0'.
All sensors are active and RC = '1'.
MONITORING
CYCLE TIME
15ms
44ms
93ms
59ms
108ms
88ms
186ms
103ms
201ms
62
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