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| 型号： | AD7701ARZ-REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 7/20页 |
| 文件大小： | 0K |
| 描述： | IC ADC 16BIT LC2MOS 20SOIC |
| 标准包装： | 1,000 |
| 位数： | 16 |
| 采样率（每秒）： | 4k |
| 数据接口： | 串行 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 37mW |
| 电压电源： | 模拟和数字，双 ± |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 20-SOIC W |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 1 个单端，单极；1 个单端，双极 |
REV. E
AD7701
–15–
Synchronous External Clock Mode (SEC)
The SEC mode (MODE pin grounded) is designed for direct
interface to the synchronous serial ports of industry-standard
microprocessors such as the COPS series, 68HC11, and 68HC05.
The SEC mode also allows customized interfaces, using I/O
port pins, to microprocessors that do not have a direct fit with
the AD7701’s other modes.
As shown in Figure 20, a falling edge on
CS enables the serial
data output with the MSB initially valid. Subsequent data bits
change on the falling edge of an externally supplied SCLK.
After the LSB has been transmitted,
DRDY goes high and
SDATA goes three-state. If
CS is low and the AD7701 is still
transmitting data when a new data-word becomes available, the
old data-word continues to be transmitted and the new data is lost.
If
CS is taken high at any time during data transmission, SDATA
and SCLK will go three-state immediately. If
CS returns low,
the AD7701 will continue transmission with the same data bit.
If transmission has not been initiated and completed by the time
the next data-word becomes available, and if
CS is high, DRDY
will return high for four clock cycles, then fall as the new word
is loaded into the output register.
CLKIN (I)
DRDY (O)
SDATA (O)
DB15 (MSB)
DB14
DB2
DB1
DB0 (LSB)
HI-Z
SCLK (O)
HI-Z
CS (I)
72 CLKIN
CYCLES
Figure 19. SSC Mode Showing Data Timing Relative to SCLK
SCLK (I)
SDATA (O)
DB15
(MSB)
DB14
DB13
DB1
DB0
(LSB)
HI-Z
DRDY (O)
CS (I)
Figure 20. Timing Diagram for the SEC Mode
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7701BN | 功能描述:IC ADC 16BIT LC2MOS MONO 20-DIP 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 系列:- 位数:14 采样率（每秒）:83k 数据接口:串行，并联 转换器数目:1 功率耗散（最大）:95mW 电压电源:双 ± 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:28-DIP（0.600"，15.24mm） 供应商设备封装:28-PDIP 包装:管件 输入数目和类型:1 个单端，双极 |
| AD7701BNZ | 功能描述:IC ADC 16BIT LC2MOS MONO 20-DIP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 模数转换器 系列:- 其它有关文件:TSA1204 View All Specifications 标准包装:1 系列:- 位数:12 采样率（每秒）:20M 数据接口:并联 转换器数目:2 功率耗散（最大）:155mW 电压电源:模拟和数字 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-TQFP 供应商设备封装:48-TQFP（7x7） 包装:Digi-Reel® 输入数目和类型:4 个单端，单极；2 个差分，单极 产品目录页面:1156 (CN2011-ZH PDF) 其它名称:497-5435-6 |
| AD7701BQ | 制造商:AD 制造商全称:Analog Devices 功能描述:LC2MOS 16-Bit A/D Converter |
| AD7701BR | 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 4ksps 16-bit Serial 20-Pin SOIC W 制造商:Rochester Electronics LLC 功能描述:16 BIT SIGMA DELTA CONVER - Bulk |
| AD7701BR-REEL | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
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