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参数资料
| 型号： | AD7791BRMZ |
| 厂商： | Analog Devices Inc |
| 文件页数： | 9/20页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT BUFFERED LP 10MSOP |
| 标准包装： | 50 |
| 位数： | 24 |
| 采样率（每秒）： | 120 |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 230µW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 105°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： | 1 个差分，单极；1 个差分，双极 |
| 产品目录页面： | 779 (CN2011-ZH PDF) |
Data Sheet
AD7791
Rev. A | Page 17 of 20
Continuous Read Mode
Rather than write to the communications register each time a
conversion is complete to access the data, the AD7791 can be
placed in continuous read mode. By writing 001111XX to the
communications register, the user needs only to apply the
appropriate number of SCLK cycles to the ADC and the 24-bit
word will automatically be placed on the DOUT/RDY line
when a conversion is complete.
When DOUT/RDY goes low to indicate the end of a conver-
sion, sufficient SCLK cycles must be applied to the ADC and
the data conversion will be placed on the DOUT/RDY line.
When the conversion is read, DOUT/RDY will return high
until the next conversion is available. In this mode, the data can
be read only once. Also, the user must ensure that the data-
word is read
before the next conversion is complete. If the user has not read
the conversion before the completion of the next conversion or
if insufficient serial clocks are applied to the AD7791 to read
the word, the serial output register is reset when the next con-
version is complete and the new conversion is placed in the
output serial register.
To exit the continuous read mode, the instruction 001110XX
must be written to the communications register while the RDY
pin is low. While in the continuous read mode, the ADC moni-
tors activity on the DIN line so that it can receive the
instruction to exit the continuous read mode. Additionally, a
reset will occur if 32 consecutive 1s are seen on DIN. Therefore,
DIN should be held low in continuous read mode until an in-
struction is to be written to the device.
04227-0-008
DIN
SCLK
DOUT/RDY
CS
0x3C
DATA
Figure 15. Continuous Read
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相关代理商/技术参数 |
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|---|---|
| AD7791BRMZ | 制造商:Analog Devices 功能描述:IC 16BIT ADC SMD 7791 MSOP10 |
| AD7791BRMZ-REEL | 功能描述:IC ADC 24BIT SIGMA-DELTA 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:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
| AD7792 | 制造商:AD 制造商全称:Analog Devices 功能描述:Low Power, 16/24-Bit Sigma-Delta ADC with Low-Noise In-Amp and Embedded Reference |
| AD7792_07 | 制造商:AD 制造商全称:Analog Devices 功能描述:3-Channel, Low Noise, Low Power, 16-/24-Bit ?￡-?? ADC with On-Chip In-Amp and Reference |
| AD7792BRU | 功能描述:IC ADC 16BIT 3CH LP 16-TSSOP RoHS:否 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 标准包装:1,000 系列:- 位数:16 采样率（每秒）:45k 数据接口:串行 转换器数目:2 功率耗散（最大）:315mW 电压电源:模拟和数字 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC W 包装:带卷 (TR) 输入数目和类型:2 个单端，单极 |
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