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参数资料
| 型号： | AD7472YR-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 5/21页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT PARALLEL 24-SOIC |
| 标准包装： | 1 |
| 位数： | 12 |
| 采样率（每秒）： | 1.5M |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 12mW |
| 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-SOIC（0.295"，7.50mm 宽） |
| 供应商设备封装： | 24-SOIC W |
| 包装： | 标准包装 |
| 输入数目和类型： | 1 个单端，单极 |
| 其它名称： | AD7472YR-REEL7DKR |
REV. B
AD7470/AD7472
–12–
PARALLEL INTERFACE
The parallel interfaces of the AD7470 and AD7472 are 10 bits
and 12 bits wide, respectively. The output data buffers are acti-
vated when both
CS and RD are logic low. At this point, the con-
tents of the data register are placed onto the data bus. Figure 10
shows the timing diagram for the parallel port.
Figure 11 shows the timing diagram for the parallel port when
CS and RD are tied permanently low. In this setup, once BUSY
line goes from high to low, the conversion process is completed.
The data is available on the output bus slightly before the falling
edge of BUSY.
It is important to point out that data bus cannot change state
while the ADC is doing a conversion as this would have a detri-
mental effect on the conversion in progress. The data out lines
will go three-state again when either the
RD or the CS line goes
high. Thus the
CS can be tied low permanently, leaving the RD
line to control conversion result access. Refer to VDRIVE section
for output voltage levels.
t2
tCONVERT
t3
t4
t8
t5
t6
t7
t9
t10
BUSY
CS
RD
DBx
CONVST*
*
CONVST SHOULD GO HIGH WHEN THE CLK IS HIGH OR BEFORE THE FIRST CLK CYCLE.
Figure 10. Parallel Port Timing
t2
tCONVERT
t9
CONVST*
BUSY
DBx
DATA N
DATA N + 1
*
CONVST SHOULD GO HIGH WHEN THE CLK IS HIGH OR BEFORE THE FIRST CLK CYCLE.
Figure 11. Parallel Port Timing with
CS and RD Tied Low
t2
t3
t4
t8
t6
t7
CLK IN
CONVST
BUSY
CS
RD
DBX
tWAKEUP
t5
tCONVERT
Figure 12. Wake-Up Timing Diagram (Burst Clock)
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相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7472YRU | 制造商:Analog Devices 功能描述:ADC Single SAR 1.5Msps 12-bit Parallel 24-Pin TSSOP 制造商:Rochester Electronics LLC 功能描述:12 BIT 1.5MSPS PARALLEL ADC I.C. - Bulk |
| AD7472YRU-REEL | 功能描述:IC ADC 12BIT PARALLEL 24-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 |
| AD7472YRU-REEL7 | 功能描述:IC ADC 12BIT PARALLEL 24-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 |
| AD7472YRUZ | 制造商:Analog Devices 功能描述:ADC Single SAR 1.5Msps 12-bit Parallel 24-Pin TSSOP |
| AD7472YRZ | 制造商:Analog Devices 功能描述:ADC Single SAR 1.5Msps 12-bit Parallel 24-Pin SOIC W |
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