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参数资料
| 型号： | ADM1192ARMZ-R7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 12/20页 |
| 文件大小： | 0K |
| 描述： | IC PWR MONITOR DGTL ALERT 10MSOP |
| 标准包装： | 1 |
| 应用： | 监控，数字电流 |
| 电流 - 电源： | 1.7mA |
| 电源电压： | 3.15 V ~ 26 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-TFSOP，10-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 10-MSOP |
| 包装： | 标准包装 |
| 配用： | EVAL-ADM1192EBZ-ND - BOARD EVALUATION FOR ADM1192 |
| 其它名称： | ADM1192ARMZ-R7DKR |
ADM1192
WRITE AND READ OPERATIONS
The I 2 C specification defines several protocols for different
types of read and write operations. The operations used in the
ADM1192 are discussed in this section. Table 6 shows the
Table 6. I 2 C Abbreviations
Data Sheet
WRITE COMMAND BYTE
In the write command byte operation, the master device sends
a command byte to the slave device, as follows:
1. The master device asserts a start condition on SDA.
2. The master sends the 7-bit slave address, followed by the
write bit (low).
Abbreviation
S
P
R
W
A
N
Condition
Start
Stop
Read
Write
Acknowledge
No acknowledge
3.
4.
5.
6.
The addressed slave device asserts an acknowledge on SDA.
The master sends the command byte. The command byte
is identified by an MSB = 0. An MSB = 1 indicates an
Byte section).
The slave asserts an acknowledge on SDA.
The master asserts a stop condition on SDA to end the
transaction.
QUICK COMMAND
1
2
3
4
5 6
S ADDRESS W A
A P
The quick command operation allows the master to check if the
slave is present on the bus, as follows:
1. The master device asserts a start condition on SDA.
2. The master sends the 7-bit slave address, followed by the
write bit (low).
3. The addressed slave device asserts an acknowledge on SDA.
SLAVE COMMAND
BYTE
Figure 22. Write Command Byte
The seven LSBs of the command byte are used to configure and
control the ADM1192 . Table 7 provides details of the function
of each bit.
4.
The master asserts a stop condition on SDA to end the
transaction.
1
2
3 4
S ADDRESS W A P
SLAVE
Figure 21. Quick Command
Table 7. Command Byte Operations
Bit
C0
C1
Default
0
0
Name
V_CONT
V_ONCE
Function
LSB, set to convert voltage continuously. If readback is attempted before the first conversion is complete,
the ADM1192 asserts an acknowledge and returns all 0s in the returned data.
Set to convert voltage once. Self-clears. I 2 C asserts a no acknowledge on attempted reads until the ADC
conversion is complete.
C2
C3
0
0
I_CONT
I_ONCE
Set to convert current continuously. If readback is attempted before the first conversion is complete, the
ADM1192 asserts an acknowledge and returns all 0s in the returned data.
Set to convert current once. Self-clears. I 2 C asserts a no acknowledge on attempted reads until the ADC
conversion is complete.
C4
0
VRANGE
Selects different internal attenuation resistor networks for voltage readback. A 0 in C4 selects a 14:1
voltage divider. A 1 in C4 selects a 7:2 voltage divider. With an ADC full scale of 1.902 V, the voltage at the
VCC pin for an ADC full-scale result is 26.52 V for VRANGE = 0 and 6.65 V for VRANGE = 1.
C5
C6
0
0
Not applicable
STATUS_RD
Unused.
Status Read. When this bit is set, the data byte read back from the ADM1192 is the status byte. This
contains the status of the device alerts. See Table 15 for full details of the status byte.
Rev. D | Page 12 of 20
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