MCP3204 View Datasheet(PDF) - Microchip Technology
Part Name
Description
MFG CO.
MCP3204
Microchip Technology
'MCP3204' PDF : 20 Pages View PDF
MCP3204/3208
CS
CLK
tSUCS
tCYC
tCSH
tCYC
DIN
Start
SGL/
DIFF
D2
D1 D0
Don’t Care
Start
SGL/
DIFF
D2
DOUT
HI-Z
Null
Bit B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 *
tCONV
HI-Z
tSAMPLE
tDATA **
* 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 power down while the reference input becomes
a high impedance node, leaving the CLK running to clock out the LSB-first data or zeros.
FIGURE 5-1: Communication with the MCP3204 or MCP3208.
CS
CLK
tSUCS
tCYC
tCSH
Power Down
DIN
DOUT
Start
D2 D1 D0
SGL/
DIFF
Don’t Care
HI-Z
Null
Bit
B11 B10
B9
B8
B7
B6
B5
B4
B3
B2
B1
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9 B10 B1*1
HI-Z
(MSB)
tSAMPLE
tCONV
tDATA **
* 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 power down while the reference input becomes a
high impedance node, leaving the CLK running to clock out LSB first data or zeroes.
FIGURE 5-2: Communication with MCP3204 or MCP3208 in LSB First Format.
© 1999 Microchip Technology Inc.
Preliminary
DS21298B-page 15
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