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参数资料
| 型号： | AD7734BRUZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 18/32页 |
| 文件大小： | 0K |
| 描述： | IC ADC 24BIT 4CH SIG-DEL 28TSSOP |
| 标准包装： | 1 |
| 位数： | 24 |
| 采样率（每秒）： | 15.4k |
| 数据接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 100mW |
| 电压电源： | 模拟和数字 |
| 工作温度： | -40°C ~ 105°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 28-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 28-TSSOP |
| 包装： | 标准包装 |
| 输入数目和类型： | 4 个单端，单极；4 个单端，双极 |
| 其它名称： | AD7734BRUZ-REEL7DKR |
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Data Sheet
AD7734
Rev. A | Page 25 of 32
SERIAL
INTERFACE
START
CONTINUOUS
CONVERSION
RDY
CH0 CONVERSION
READ
DATA
CH1
CH1 CONVERSION
CH0 CONVERSION
READ
DATA
CH0
CH1 CONVERSION
READ
DATA
CH0
CH0 CONVERSION
READ
DATA
CH1
Figure 20. Continuous Conversion, CH0 and CH1, RDYFN = 1
SERIAL
INTERFACE
START
CONTINUOUS
CONVERSION
RDY
CH0 CONVERSION
CH1 CONVERSION
CH0 CONVERSION
CH1 CONVERSION
CH0 CONVERSION
Figure 21. Continuous Conversion, CH0 and CH1, No Data Read
DIN
24h
00h
DATA
00h
DATA
00h
STATUS
READ
CH0
DATA
READ
CH0
STATUS
48h
WRITE
COMM.
REGISTER
SCLK
CS
DOUT
WRITE
COMM.
REGISTER
WRITE
MODE
REGISTER
RDY
38h
00h
DATA
00h
DATA
00h
STATUS
READ
CH1
DATA
READ
CH1
STATUS
CONVERSION
ON CH0
COMPLETE
CONVERSION
ON CH1
COMPLETE
Figure 22. Continuous Conversion, CH0 and CH1, Continuous Read
CONTINUOUS READ (CONTINUOUS CONVERSION) MODE
When the Cont RD bit in the mode register is set, the first write
of 48h to the communications register starts the continuous
read mode. As shown in Figure 22, subsequent accesses to the
part sequentially read the channel status and data registers of
the last completed conversion without any further configuration
of the communications register being required.
Note that the continuous conversion bit in the mode register
should be set when entering the continuous read mode.
Note that the continuous read mode is a dump mode reading of
the channel status and data registers regardless of the dump bit
value. Use the channel bits in the channel status register to
check/recognize which channel data is actually being
shifted out.
Note that the last completed conversion result is being read.
Therefore the RDYFN bit in the I/O port register should be 0,
and reading the result should always start before the next
conversion is completed.
The AD7734 will stay in continuous read mode as long as the
DIN pin is low while the CS pin is low; therefore, write 0 to the
AD7734 while reading in continuous read mode. To exit
continuous read mode, take the DIN pin high for at least 100 ns
after a read is complete. (Write 80h to the AD7734 to exit
continuous reading.)
Taking the DIN pin high does not change the Cont RD bit in
the mode register. Therefore, the next write of 48h starts the
continuous read mode again. To completely stop the continuous
read mode, write to the mode register to clear the Cont RD bit.
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| AD7738 | 制造商:Analog Devices 功能描述:- Bulk |
| AD7738BRU | 功能描述:IC ADC 24BIT 8-CH 28-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:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7738BRU-REEL | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 3.05Msps 24-bit Serial 28-Pin TSSOP T/R 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 15.437KSPS 24BIT SERL 28TSSOP - Tape and Reel |
| AD7738BRU-REEL7 | 功能描述:IC ADC 24BIT 8CH SIG-DEL 28TSSOP 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:12 采样率（每秒）:300k 数据接口:并联 转换器数目:1 功率耗散（最大）:75mW 电压电源:单电源 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:24-SOIC（0.295"，7.50mm 宽） 供应商设备封装:24-SOIC 包装:带卷 (TR) 输入数目和类型:1 个单端，单极；1 个单端，双极 |
| AD7738BRUZ | 功能描述:IC ADC 24BIT 8-CH 28-TSSOP 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 |
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