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| 型号： | AD7992BRMZ-0 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 21/29页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 2CHAN I2C 10MSOP |
| 标准包装： | 50 |
| 位数： | 12 |
| 采样率（每秒）： | 79k |
| 数据接口： | I²C，串行 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 2.2mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 125°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： | 管件 |
| 输入数目和类型： | 2 个单端，单极 |
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AD7992
Rev. 0 | Page 27 of 28
9
11
SCL
9
S
7-BIT ADDRESS
WA
COMMAND/ADDRESS
POINT BYTE
A
SDA
FIRST DATA BYTE
(MSBs)
A
SECOND DATA BYTE
(LSBs)
FIRST DATA BYTE
(MSBs)
SECOND DATA BYTE
(LSBs)
A
Sr
7-BIT ADDRESS
RA
SDA
9
1
SCL
9
8
ACK BY
AD7992
ACK BY
AD7992
ACK BY
MASTER
ACK BY
MASTER
ACK BY
MASTER
ACK BY
AD7992
A
9
RESULT FROM CH1
RESULT FROM CH2
A/A
03263-0-013
Figure 33. Mode 2 Sequence Operation
MODE 3—AUTOMATIC CYCLE MODE
An automatic conversion cycle can be selected and enabled by
writing a value to the cycle timer register. A conversion cycle
interval can be set up on the AD7992 by programming the
relevant bits in the 8-bit cycle timer register, as decoded in
Table 23. Only the 3 LSBs are used; the 5 MSBs should contain
0s (see the Sample Delay and Bit Trial Delay section). When the
3 LSBs of the register are programmed with any configuration
other than all 0s, a conversion takes place every X ms; the cycle
interval, X, depends on the configuration of these three bits in
the cycle timer register. There are seven different cycle time
intervals to choose from, as shown in Table 23. Once the
conversion has taken place, the part powers down again until
the next conversion occurs. To exit this mode of operation, the
user must program the 3 LSBs of the cycle timer register to
contain all 0s. For cycle interval options, see Table 23.
To select a channel(s) for operation in cycle mode, set the
corresponding channel bit(s), D5 to D4, of the configuration
register. If more than one channel bit is set in the configuration
register, the ADC automatically cycles through the channel
sequence, starting with the lowest channel. Once the sequence
is complete, the ADC starts converting on the lowest channel
again, continuing to loop through the sequence until the cycle
timer register contents are set to all 0s. This mode is useful for
monitoring signals, such as battery voltage and temperature,
alerting only when the limits are violated.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7992BRMZ-0REEL | 功能描述:IC ADC 12BIT 2CHAN I2C 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率（每秒）:15 数据接口:MICROWIRE?，串行，SPI? 转换器数目:1 功率耗散（最大）:480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN（5x7） 包装:带卷 (TR) 输入数目和类型:16 个单端，双极；8 个差分，双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| AD7992BRMZ-1 | 功能描述:IC ADC 12BIT 2CHAN I2C 10-MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1 系列:microPOWER™ 位数:8 采样率（每秒）:1M 数据接口:串行，SPI? 转换器数目:1 功率耗散（最大）:- 电压电源:模拟和数字 工作温度:-40°C ~ 125°C 安装类型:表面贴装 封装/外壳:24-VFQFN 裸露焊盘 供应商设备封装:24-VQFN 裸露焊盘（4x4） 包装:Digi-Reel® 输入数目和类型:8 个单端，单极 产品目录页面:892 (CN2011-ZH PDF) 其它名称:296-25851-6 |
| AD7992BRMZ-1-R2 | 制造商:Analog Devices 功能描述: |
| AD7992BRMZ-1REEL | 功能描述:IC ADC 12BIT 2CHAN I2C 10MSOP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:2,500 系列:- 位数:16 采样率（每秒）:15 数据接口:MICROWIRE?，串行，SPI? 转换器数目:1 功率耗散（最大）:480µW 电压电源:单电源 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:38-WFQFN 裸露焊盘 供应商设备封装:38-QFN（5x7） 包装:带卷 (TR) 输入数目和类型:16 个单端，双极；8 个差分，双极 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494 |
| AD7993 | 制造商:AD 制造商全称:Analog Devices 功能描述:4-Channel, 12-/10-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP |
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