Datasheet

AMC7812

SBAS513E –JANUARY 2011–REVISED SEPTEMBER 2013

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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 LSB

BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10 BIT 9 BIT 8 BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

0 0 0 0 0 0 0 0 0 0 0 0 0 R2 R1 R0

When using the I

C interface, the following bit configuration must be used; default = 07FFh.

MSB LSB

BIT 15 BIT 14 BIT 13 BIT 12 BIT 11 BIT 10 BIT 9 BIT 8 BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 BIT 2 BIT 1 BIT 0

0 0 0 0 0 R2 R1 R0 1 1 1 1 1 1 1 1

The bit descriptions are shown in Table 12.

Table 12. Temperature Conversion Time

R2 R1 R0 CONVERSION TIME

0 0 0 128x minimum

0 0 1 64x minimum

0 1 0 32x minimum

0 1 1 16x minimum

1 0 0 8x minimum

1 0 1 4x minimum

1 1 0 2x minimum

1 1 1 Minimum cycle time

Table 13. Temperature Monitoring Cycle Time

MONITORING

TEMPERATURE SENSOR STATUS CYCLE TIME

Local sensor is active, remote sensors are disabled or in power-down. 15ms

One remote sensor is active and RC = '0', local sensor and one remote sensor are disabled or in power-down. 44ms

One remote sensor is active and RC = '1', local sensor and one remote sensor are disabled or in power-down. 93ms

One remote sensor and local sensor are active and RC = '0', one remote sensor is disabled or in power-down. 59ms

One remote sensor and local sensor are active and RC = '1', one remote sensor is disabled or in power-down. 108ms

Two remote sensors are active and RC = '0', local sensor is disabled or in power-down. 88ms

Two remote sensors are active and RC = '1', local sensor is disabled or in power-down. 186ms

All sensors are active and RC = '0'. 103ms

All sensors are active and RC = '1'. 201ms

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