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ADT7316ARQ-REEL View Datasheet(PDF) - Analog Devices

Part Name

Description

MFG CO.

ADT7316ARQ-REEL

±0.5°C Accurate Digital Temperature Sensor and Quad Voltage Output 12-/10-/8-Bit DACs

Analog Devices

ADT7316ARQ-REEL Datasheet PDF : 44 Pages

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ADT7316/ADT7317/ADT7318

Interrupt Mask 1 Register (Read/Write) [Address 0x1D]

This mask register is an 8-bit, read/write register that can be

used to mask out any interrupts that can cause the INT/INT

pin to go active.

Table 44. Interrupt Mask 1

D7 D6 D5 D4 D3 D2 D1 D0

1 Default settings at power-up.

Table 45. Interrupt Mask 1 Bit Descriptions

Bit Function

0 = Enable internal THIGH interrupt.

1 = Disable internal THIGH interrupt.

0 = Enable internal TLOW interrupt.

1 = Disable internal TLOW interrupt.

0 = Enable external THIGH interrupt.

1 = Disable external THIGH interrupt.

0 = Enable external TLOW interrupt.

1 = Disable external TLOW interrupt.

0 = Enable external temperature fault interrupt.

1 = Disable external temperature fault interrupt.

D5: 7 Reserved. Only write 0s.

Interrupt Mask 2 Register (Read/Write) [Address 0x1E]

This mask register is an 8-bit read/write register that can be

used to mask out any interrupts that can cause the INT/INT

pin to go active.

Table 46. Interrupt Mask 2

D7 D6 D5 D4 D3 D2 D1 D0

1 Default settings at power-up.

Table 47. Interrupt Mask 2 Bit Descriptions

Bit

Function

D0:D3

Reserved. Only write 0s.

0 = Enable VDD interrupts.

1 = Disable VDD interrupts.

D5:7

Reserved. Only write 0s.

Internal Temperature Offset Register (Read/Write)

[Address 0x1F]

This register contains the offset value for the internal tempera-

ture channel. A twos complement number can be written to this

stored or compared to limits. In this way, a one-point calibration

can be done whereby the whole transfer function of the channel

can be moved up or down. From a software point of view, this

may be a very simple method to vary the characteristics of the

measurement channel if the thermal characteristics change. As

it is an 8-bit register, the temperature resolution is 1°C.

Table 48. Internal Temperature Offset

D7 D6 D5 D4 D3 D2 D1 D0

1 Default settings at power-up.

External Temperature Offset Register (Read/Write)

[Address 0x20]

This register contains the offset value for the external tempera-

ture channel. A twos complement number can be written to this

stored or compared to limits. In this way, one-point calibration

can be done whereby the whole transfer function of the channel

can be moved up or down. From a software point of view, this

may be a very simple method to vary the characteristics of the

measurement channel if the thermal characteristics change. As

it is an 8-bit register, the temperature resolution is 1°C.

Table 49. External Temperature Offset

D7 D6 D5 D4 D3 D2 D1 D0

1 Default settings at power-up.

Internal Analog Temperature Offset Register (Read/Write)

[Address 0x21]

This register contains the offset value for the internal thermal

voltage output. A twos complement number can be written to

this register which is then added to the measured result before

it is converted by DAC A. Varying the value in this register has

the effect of varying the temperature span. For example, the

output voltage can represent a temperature span of −128°C to

+127°C or even 0°C to 127°C. In essence, this register changes

the position of 0 V on the temperature scale. Anything other

than −128°C to +127°C produces an upper dead band on the

DAC A output. As it is an 8-bit register, the temperature

resolution is 1°C. The default value is −40°C.

Table 50. Internal Analog Temperature Offset

D7 D6 D5 D4 D3 D2 D1 D0

1 Default settings at power-up.

Rev. B | Page 32 of 44

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