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MCP4921 Datasheet(PDF) 25 Page - Microchip Technology

Part # MCP4921
Description  8/10/12-Bit Voltage Output Digital-to-Analog Converter with SPI Interface
PDF  50 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

MCP4921 Datasheet(HTML) 25 Page - Microchip Technology

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 2010 Microchip Technology Inc.
DS22248A-page 25
MCP4901/4911/4921
FIGURE 5-1:
Write Command for MCP4921 (12-bit DAC).
FIGURE 5-2:
Write Command for MCP4911 (10-bit DAC). Note: X are don’t care bits.
FIGURE 5-3:
Write Command for MCP4901(8-bit DAC). Note: X are don’t care bits.
SDI
SCK
CS
0
2
1
GA SHDN D11 D10
config bits
12 data bits
LDAC
3
4
D9
5
6
7
D8 D7 D6
8
9
10
12
D5
D4 D3 D2 D1 D0
11
13 14
15
VOUT
(Mode 1,1)
(Mode 0,0)
BUF
0
SDI
SCK
CS
0
2
1
GA SHDN D9
D8
config bits
12 data bits
LDAC
3
4
D7
5
6
7
D6 D5 D4
8
9
10
12
D3
D2 D1 D0
X
X
11
13 14
15
VOUT
(Mode 1,1)
(Mode 0,0)
BUF
0
SDI
SCK
CS
0
2
1
GA SHDN
config bits
12 data bits
LDAC
3
4
5
6
7
X
D7
D6
8
9
10
12
D5
D4
D3 D2 D1 D0
11
13 14
15
VOUT
(Mode 1,1)
(Mode 0,0)
XX
X
BUF
0



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