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| 型号： | AD7864BSZ-1REEL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 11/28页 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT DUAL 4CHAN 44-MQFP |
| 标准包装： | 800 |
| 位数： | 12 |
| 采样率（每秒）： | 520k |
| 数据接口： | 并联 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 120mW |
| 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： | 44-QFP |
| 供应商设备封装： | 44-MQFP（10x10） |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 4 个差分，双极 |
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AD7864
Rev. D | Page 19 of 28
When reading the output data registers after a conversion
sequence, that is, when BUSY goes low, the register pointer is
incremented on the rising edge of the RD signal, as shown in
. However, when reading the conversion results during
the conversion sequence, the pointer is not incremented until a
valid conversion result is in the register to be addressed. In this
case, the pointer is incremented when the conversion has ended
and the result has been transferred to the output data register.
This happens immediately before
EOC goes low, therefore EOC
may be used to enable the register contents onto the data bus,
as described in the
subsection within the
section. The pointer is reset to point
to Register 1 on the rising edge of the
RD signal when the last
conversion result in the sequence is being read. In the example
shown, this means that the pointer is set to Register 1 when the
contents of Register 3 are read.
DB0 TO DB11
OUTPUT
DRIVERS
OE NO. 1
NOT VALID
(VIN3)
(VIN1)
(VIN4)
OE NO. 2
OE NO. 3
OE NO. 4
2-BIT
COUNTER
VDRIVE
OE
RD
CS
RESET
DE
CO
DE
OUTPUT DATA REGISTERS
*THE POINTER IS NOT INCREMENTED BY A RISING EDGE ON RD UNTIL
THE CONVERSION RESULT IS IN THE OUTPUT DATA REGISTER. THE POINTER
IS RESET WHEN THE LAST CONVERSION RESULT IS READ.
FRSTDATA
POINTER*
AD7864
0
13
41
-0
14
Figure 14. Output Data Registers
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相关代理商/技术参数 |
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|---|---|
| AD7864BSZ-1REEL2 | 制造商:AD 制造商全称:Analog Devices 功能描述:4-Channel, Simultaneous Sampling, High Speed, 12-Bit ADC |
| AD7865 | 制造商:AD 制造商全称:Analog Devices 功能描述:Four-Channel, Simultaneous Sampling, Fast, 14-Bit ADC |
| AD7865AS-1 | 制造商:Rochester Electronics LLC 功能描述:4 CH. SIMULTANEOUS BIPOLAR,14-B ADC I.C. - Bulk 制造商:Analog Devices 功能描述:Analog-Digital Converter IC Number of Bi |
| AD7865AS-1REEL | 制造商:Analog Devices 功能描述:ADC Single SAR 350ksps 14-bit Parallel 44-Pin MQFP T/R 制造商:Rochester Electronics LLC 功能描述:4 CH. SIMULTANEOUS BIPOLAR,14-B ADC I.C. - Tape and Reel |
| AD7865AS2 | 制造商:AD 功能描述:* |
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