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參數資料
| 型號： | ADT7518ARQZ |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 33/40頁 |
| 文件大小： | 891K |
| 描述： | IC SENSOR TEMP QD ADC/DAC 16QSOP |
| 標準包裝： | 98 |
| 功能： | 溫度監(jiān)控系統(tǒng)（傳感器） |
| 傳感器類型： | 內部和外部 |
| 感應溫度： | -40°C ~ 120°C，外部傳感器 |
| 精確度： | ±3°C（最小值） |
| 拓撲： | ADC，比較器，多路復用器，寄存器庫 |
| 輸出類型： | I²C?，MICROWIRE?，QSPI?，SPI? |
| 輸出警報： | 無 |
| 輸出風扇： | 無 |
| 電源電壓： | 2.7 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 120°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 16-QSOP |
| 包裝： | 托盤 |
| 產品目錄頁面： | 798 (CN2011-ZH PDF) |
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ADT7518
Rev. A | Page 33 of 40
AIN2 V
LOW
Limit Register (Read/Write) [Address = 2Ch]
This limit register is an 8-bit read/write register that stores the
AIN2 input lower limit, which will cause an interrupt and acti-
vate the INT/INT
output (if enabled). For this to happen, the
measured AIN2 value has to be less than or equal to the value in
this register. Because it is an 8-bit register, the resolution is four
times less than the resolution of the 10-bit ADC. The default
value is 0 V.
Table 54. AIN2 V
LOW
Limit
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
0*
0*
0*
0*
0*
0*
0*
0*
* Default settings at power-up
AIN3 V
HIGH
Limit Register (Read/Write) [Address = 2Dh]
This limit register is an 8-bit read/write register that stores the
AIN3 input upper limit, which will cause an interrupt and acti-
vate the INT/INT
output (if enabled). For this to happen, the
measured AIN3 value has to be greater than the value in this
register. Because it is an 8-bit register, the resolution is four
times less than the resolution of the 10-bit ADC. The default
value is full-scale voltage.
Table 55. AIN3 VHIGH Limit
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
1*
1*
1*
1*
1*
1*
1*
1*
* Default settings at power-up
AIN3 VLOW Limit Register (Read/Write) [Address = 2Eh]
This limit register is an 8-bit read/write register that stores the
AIN3 input lower limit, which will cause an interrupt and
activate the INT/INT
output (if enabled). For this to happen,
the measured AIN3 value has to be less than or equal to the
value in this register. Because it is an 8-bit register, the reso-
lution is four times less than the resolution of the 10-bit ADC.
The default value is 0 V.
Table 56. AIN3 V
LOW
Limit
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
0*
0*
0*
0*
0*
0*
0*
0*
* Default settings at power-up
AIN4 VHIGH Limit Register (Read/Write) [Address = 2Fh]
This limit register is an 8-bit read/write register that stores the
AIN4 input upper limit, which will cause an interrupt and acti-
vate the INT/
INT
output (if enabled). For this to happen, the
measured AIN4 value has to be greater than the value in this
register. Because it is an 8-bit register, the resolution is four
times less than the resolution of the 10-bit ADC. The default
value is full-scale voltage.
Table 57. AIN4 VHIGH Limit
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
1*
1*
1*
1*
1*
1*
1*
1*
* Default settings at power-up
AIN4 V
LOW
Limit Register (Read/Write) [Address = 30h]
This limit register is an 8-bit read/write register that stores the
AIN4 input lower limit, which will cause an interrupt and
activate the INT/INT
output (if enabled). For this to happen,
the measured AIN4 value has to be less than or equal to the
value in this register. Because it is an 8-bit register, the reso-
lution is four times less than the resolution of the 10-bit ADC.
The default value is 0 V.
Table 58. AIN4 VLOW Limit
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
0*
0*
0*
0*
0*
0*
0*
0*
* Default settings at power-up
Device ID Register (Read-Only) [Address = 4Dh]
This 8-bit read-only register contains a device identifier byte:
ADT7518 = 0Bh.
Manufacturers ID Register (Read-Only) [Address = 4Eh]
This register contains the manufacturers identification number.
ADIs ID number is 41h.
Silicon Revision Register (Read-Only) [Address = 4Fh]
This register is divided into four LSBs representing the stepping
and the four MSBs representing the version. The stepping con-
tains the manufacturers code for minor revisions or steppings
to the silicon. The version is the ADT7518 version number.
SPI Lock Status Register (Read-Only) [Address = 7Fh]
Bit D0 (LSB) of this read-only register indicates whether or not
the SPI interface is locked. Writing to this register will cause the
device to malfunction. The default value is 00h.
0 = I
2
C interface.
1 = SPI interface selected and locked.
SERIAL INTERFACE
There are two serial interfaces that can be used on this part: I
2
C
and SPI. The device will power up with the serial interface in
I
2
C mode, but it is not locked into this mode. To stay in I
2
C
mode, it is recommended that the user tie the CS
line to either
V
CC
or GND. It is not possible to lock the I
2
C mode, but it is
possible to select and lock the SPI mode.
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相關代理商/技術參數 |
參數描述 |
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| ADT7518ARQZ-REEL | 制造商:Analog Devices 功能描述:Temp Sensor Analog Serial (4-Wire, SPI, I2C) 16-Pin QSOP T/R |
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