參數(shù)資料
型號(hào): MCP3004-I/ST
廠商: Microchip Technology
文件頁(yè)數(shù): 13/40頁(yè)
文件大?。?/td> 0K
描述: IC ADC 10BIT 2.7V 4CH SPI14TSSOP
標(biāo)準(zhǔn)包裝: 96
位數(shù): 10
采樣率(每秒): 200k
數(shù)據(jù)接口: 串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 14-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 14-TSSOP
包裝: 管件
輸入數(shù)目和類型: 4 個(gè)單端,單極;2 個(gè)偽差分,單極
產(chǎn)品目錄頁(yè)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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