参数资料
型号: MCP3004-I/SL
厂商: Microchip Technology
文件页数: 13/40页
文件大小: 0K
描述: IC ADC 10BIT 2.7V 4CH SPI 14SOIC
标准包装: 57
位数: 10
采样率(每秒): 200k
数据接口: 串行,SPI?
转换器数目: 1
电压电源: 单电源
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 14-SOIC(0.154",3.90mm 宽)
供应商设备封装: 14-SOIC
包装: 管件
输入数目和类型: 4 个单端,单极;2 个伪差分,单极
产品目录页面: 672 (CN2011-ZH PDF)
MCP3004/3008
DS21295D-page 20
2008 Microchip Technology Inc.
FIGURE 5-1:
Communication with the MCP3004 or MCP3008.
FIGURE 5-2:
Communication with MCP3004 or MCP3008 in LSB First Format.
CS
CLK
DIN
DOUT
D1
D2
D0
HI-Z
Don’t Care
Null
Bit B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 *
HI-Z
tSAMPLE
tCONV
SGL/
DIFF
Start
tCYC
tCSH
tCYC
D2
SGL/
DIFF
Start
*
After completing the data transfer, if further clocks are applied with CS low, the A/D converter will output LSB
first data, then followed with zeros indefinitely. See Figure 5-2 below.
**
tDATA: during this time, the bias current and the comparator powers down while the reference input becomes
a high-impedance node.
tDATA **
tSUCS
Null
Bit
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
CS
CLK
DOUT
HI-Z
(MSB)
tCONV
tDATA **
Power Down
tSAMPLE
Start
SGL/
DIFF
DIN
tCYC
tCSH
D0
D1
D2
* After completing the data transfer, if further clocks are applied with CS low, the A/D converter will output zeros
indefinitely.
** tDATA: During this time, the bias circuit and the comparator powers down while the reference input becomes
a high-impedance node, leaving the CLK running to clock out LSB first data or zeroes.
tSUCS
Don’t Care
*
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