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| 型號： | ADT7518ARQ-REEL7 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | SPI/I2C Compatible, Temperature Sensor, 4-Channel ADC and Quad Voltage Output DAC |
| 中文描述： | SPI/I2C兼容，溫度傳感器，4通道ADC和四路電壓輸出DAC |
| 文件頁數(shù)： | 27/40頁 |
| 文件大?。?/td> | 1217K |
| 代理商： | ADT7518ARQ-REEL7 |
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ADT7518
Table 13. Interrupt Status 2 Register
D7
D6
D5
N/A
N/A
N/A
Rev. A | Page 27 of 40
D4
0*
D3
N/A
D2
N/A
D1
N/A
D0
N/A
*
Default settings at power-up.
Table 14.
Bit Function
D4 1 when V
DD
value is greater than its corresponding V
HIGH
limit. 1 when V
DD
is less than or equal to its corresponding
V
LOW
limit.
Internal Temperature Value/V
DD
Value Register LSBs (Read-
Only) [Address = 03h]
This 8-bit read-only register stores the two LSBs of the 10-bit
temperature reading from the internal temperature sensor and
the two LSBs of the 10-bit supply voltage reading.
Table 15. Internal Temperature/V
DD
LSBs
D7
D6
D5
D4
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
D3
V1
0*
D2
LSB
0*
D1
T1
0*
D0
LSB
0*
*
Default settings at power-up
Table 16.
Bit
Function
D0
LSB of Internal Temperature Value
D1
B1 of Internal Temperature Value
D2
LSB of V
DD
Value
D3
B1 of V
DD
Value
External Temperature Value and Analog Inputs 1 to 4
Register LSBs (Read-Only) [Address = 04h]
This is an 8-bit read-only register. Bits D2:D7 store the two LSBs
of the analog inputs AIN2 to AIN4. Bits D0:D1 store the two
LSBs of either the external temperature value or AIN1 input
value. The type of input for D0 and D1 is selected by Bits C1:C2
of the Control Configuration Register 1.
Table 17. External Temperature and AIN1 to AIN4 LSBs
D7
D6
D5
D4
A4
A4
LSB
A3
A3
LSB
0*
0*
0*
0*
D3
A2
0*
D2
A2
LSB
0*
D1
T/A
0*
D0
T/A
LSB
0*
*
Default settings at power-up
Table 18.
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
V
DD
Value Register MSBs (Read-Only) [Address = 6h]
This 8-bit read-only register stores the supply voltage value. The
eight MSBs of the 10-bit value are stored in this register.
Table 19. V
DD
Value MSBs
D7
D6
D5
D4
V9
V8
V7
V6
x*
x*
x*
x*
D3
V5
x*
D2
V4
x*
D1
V3
x*
D0
V2
x*
*
Loaded with V
DD
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. The eight MSBs of the 10-bit value are stored in this
register.
Table 20. Internal Temperature Value MSBs
D7
D6
D5
D4
T9
T8
T7
T6
0*
0*
0*
0*
D3
T5
0*
D2
T4
0*
D1
T3
0*
D0
T2
0*
*
Default settings at power-up
External Temperature Value or Analog Input AIN1 Register
MSBs (Read-Only) [Address = 08h]
This 8-bit read-only register stores, if selected, the external
temperature value or the analog input AIN1 value. Selection is
done in the Control Configuration 1 register. The external
temperature value is stored in twos complement format. The
eight MSBs of the 10-bit value are stored in this register.
Table 21. External Temperature Value/Analog Inputs MSBs
D7
D6
D5
D4
T/A9
T/A8
T/A7
T/A6
0*
0*
0*
0*
D3
T/A5
0*
D2
T/A4
0*
D1
T/A3
0*
D0
T/A2
0*
*
Default settings at power-up
AIN2 Register MSBs (Read) [Address = 09h]
This 8-bit read register contains the eight MSBs of the AIN2
analog input voltage word. The value in this register is com-
bined with Bits D2:3 of the external temperature value and
Analog Inputs 1 to 4 register LSBs, Address 04h, to give the full
10-bit conversion result of the analog value on the AIN2 pin.
Table 22. AIN2 MSBs
D7
D6
D5
D4
MSB
A8
A7
A6
0*
0*
0*
0*
D3
A5
0*
D2
A4
0*
D1
A3
0*
D0
A2
0*
*
Default settings at power-up
AIN3 Register MSBs (Read) [Address = 0Ah]
This 8-bit read register contains the eight MSBs of the AIN3
analog input voltage word. The value in this register is com-
bined with Bits D4:5 of the external temperature value and
Analog Inputs 1 to 4 register LSBs, Address 04h, to give the full
10-bit conversion result of the analog value on the AIN3 pin.
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