ADT7411ARQZ10 데이터 시트보기 (PDF) - Analog Devices

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ADT7411ARQZ10

SPI®/I2C® Compatible, 10-Bit Digital Temperature Sensor and 8-Channel ADC

Analog Devices 

Table 11.

Bit Function

D0 1 when AIN5 voltage is greater than the corresponding

VHIGH limit. 1 when AIN5 voltage is less than or equal to

the corresponding VLOW limit.

D1 1 when AIN6 voltage is greater than the corresponding

VHIGH limit. 1 when AIN6 voltage is less than or equal to

the corresponding VLOW limit.

D2 1 when AIN7 voltage is greater than the corresponding

VHIGH limit. 1 when AIN7 voltage is less than or equal to

the corresponding VLOW limit.

D3 1 when AIN8 voltage is greater than the corresponding

VHIGH limit. 1 when AIN8 voltage is less than or equal to

the corresponding VLOW limit.

D4

1 when VDD value is greater than the corresponding

VHIGH limit. 1 when VDD is less than or equal to the

corresponding VLOW limit.

D5:D7 Reserved

Internal Temperature Value/VDD Value Register LSBs

(Read-Only) [Add. = 03h]

This internal temperature value and VDD value register is an

8-bit read-only register. It stores the 2 LSBs of the 10-bit temp-

erature reading from the internal temperature sensor and also

the 2 LSBs of the 10-bit supply voltage reading.

Table 12. Internal Temperature/VDD LSBs

D7 D6 D5 D4 D3 D2 D1 D0

N/A N/A N/A N/A V1 LSB T1 LSB

N/A N/A N/A N/A 0* 0*

0* 0*

*Default settings at power-up.

Table 13.

Bit Function

D0 LSB of Internal Temperature Value.

D1 B1 of Internal Temperature Value.

D2

LSB of VDD Value.

D3

B1 of VDD Value.

External Temperature Value and Analog Inputs1 to 4

Register LSBs (Read-Only) [Address = 04h]

This is an 8-bit read-only register. Bits D2–D7 store the 2 LSBs

of the analog inputs AIN2–AIN4. Bits D0 and D1 are used to

store the 2 LSBs of either the external temperature value or

AIN1 input value. The type of input for D0 and D1 is selected

by Bits 1:2 of the Control Configuration 1 register.

Table 14. External Temperature and AIN1–4 LSBs

D7 D6

D5 D4

D3 D2

D1

A4 A4LSB

A3 A3LSB

A2 A2LSB

T/A

0* 0*

0* 0*

0* 0*

0*

*Default settings at power-up.

D0

T/ALSB

0*

ADT7411

Table 15

Bit Function

D0 LSB of External Temperature Value or AIN1 Value.

D1 Bit 1 of External Temperature Value or AIN1 Value.

D2 LSB of AIN2 Value.

D3 Bit 1 of AIN2 Value.

D4 LSB of AIN3 Value.

D5 Bit 1 of AIN3 Value.

D6 LSB of AIN4 Value.

D7 Bit 1 of AIN4 Value.

Analog Inputs 5 to 8 Registers LSBs (Read-Only)

[Add. = 05h]

This is an 8-bit read-only register. Bits D0 to D7 store the 2 LSBs

of the analog inputs AIN5 to AIN8. The MSBs are stored in

Registers 0Ch to 0Fh.

Table 16. External Temperature and AIN5 to AIN8 LSBs

D7 D6

D5 D4

D3 D2

D1 D0

A8 A8LSB

A7 A7LSB

A6 A6LSB

A5 A5LSB

0* 0*

0* 0*

0* 0*

0* 0*

*Default settings at power-up.

Table 17.

Bit

D0

D1

D2

D3

D4

D5

D6

D7

Function

LSB of AIN5 Value.

Bit 1 of AIN5 Value.

LSB of AIN6 Value.

Bit 1 of AIN6 Value.

LSB of AIN7 Value.

Bit 1 of AIN7 Value.

LSB of AIN8 Value.

Bit 1 of AIN8 Value.

VDD Value Register MSBs (Read-Only) [Address = 06h]

This 8-bit read-only register stores the supply voltage value. The

8 MSBs of the 10-bit value are stored in this register.

Table 18. VDD Value MSBs

D7 D6 D5 D4 D3 D2 D1 D0

V9 V8 V7 V6 V5 V4 V3 V2

x*

x*

x*

x*

x*

x*

x*

x*

*Loaded with VDD value after power-up.

Internal Temperature Value Register MSBs (Read-Only)

[Address = 07h]

This 8-bit read-only register stores the internal temperature

value from the internal temperature sensor in twos complement

format. This register stores the 8 MSBs of the 10-bit value.

Table 19. Internal Temperature Value MSBs

D7 D6 D5 D4 D3 D2 D1 D0

T9 T8 T7 T6 T5 T4 T3 T2

0* 0* 0* 0* 0* 0* 0* 0*

*Default settings at power-up.

Rev. A | Page 21 of 36

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