ADT7310 查看數據表（PDF） - Analog Devices

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ADT7310

±0.5°C Accurate, 16-Bit Digital SPI Temperature Sensor

Analog Devices 

Data Sheet

ADT7310

CONFIGURATION REGISTER

This 8-bit read/write register stores various configuration modes

for the ADT7310, including shutdown, overtemperature and

undertemperature interrupts, one-shot, continuous conversion,

interrupt pins polarity, and overtemperature fault queues.

Table 8. Configuration Register (Register Address 0x01)

Default

Bit

Value

Type Name

Description

[1:0] 00

R/W Fault queue

These two bits set the number of undertemperature/overtemperature faults that can

occur before setting the INT and CT pins. This helps to avoid false triggering due to

temperature noise.

00 = 1 fault (default).

01 = 2 faults.

10 = 3 faults.

11 = 4 faults.

2

0

R/W CT pin polarity This bit selects the output polarity of the CT pin.

0 = active low.

1 = active high.

3

0

R/W INT pin polarity This bit selects the output polarity of the INT pin.

0 = active low.

1 = active high.

4

0

R/W INT/CT mode This bit selects between comparator mode and interrupt mode.

0 = interrupt mode.

1 = comparator mode.

[6:5] 00

R/W Operation mode These two bits set the operational mode for the ADT7310.

00 = continuous conversion (default). When one conversion is finished, the ADT7310

starts another.

01 = one shot. Conversion time is typically 240 ms.

10 = 1 SPS mode. Conversion time is typically 60 ms. This operational mode reduces the

average current consumption.

11 = shutdown. All circuitry except interface circuitry is powered down.

7

0

R/W Resolution

This bit sets up the resolution of the ADC when converting.

0 = 13-bit resolution. Sign bit + 12 bits gives a temperature resolution of 0.0625°C.

1 = 16-bit resolution. Sign bit + 15 bits gives a temperature resolution of 0.0078125°C.

Rev. A | Page 15 of 24

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