MCP4902T-E/P MICROCHIP [Microchip Technology], MCP4902T-E/P Datasheet - Page 24
MCP4902T-E/P
Manufacturer Part Number
MCP4902T-E/P
Description
8/10/12-Bit Dual Voltage Output Digital-to-Analog Converter with SPI Interface
Manufacturer
MICROCHIP [Microchip Technology]
Datasheet
1.MCP4902T-EP.pdf
(48 pages)
- Current page: 24 of 48
- Download datasheet (4Mb)
MCP4902/4912/4922
REGISTER 5-1:
REGISTER 5-2:
REGISTER 5-3:
Where:
DS22250A-page 24
bit 15
bit 14
bit 13
bit 12
bit 11-0
bit 15
bit 15
bit 15
Legend
R = Readable bit
-n = Value at POR
W-x
W-x
W-x
A/B
A/B
A/B
BUF
BUF
BUF
W-x
W-x
W-x
A/B: DAC
1
0
BUF: V
1
0
GA: Output Gain Selection bit
1
0
SHDN: Output Shutdown Control bit
1
0
D11:D0: DAC Input Data bits. Bit x is ignored.
= Write to DAC
= Write to DAC
= Buffered
= Unbuffered
= 1x (V
= 2x (V
= Active mode operation. V
= Shutdown the selected DAC channel. Analog output is not available at the channel that was shut down.
W-x
W-x
W-x
GA
GA
GA
V
OUT
REF
A
OUT
OUT
SHDN
SHDN
SHDN
WRITE COMMAND REGISTER FOR MCP4922 (12-BIT DAC)
WRITE COMMAND REGISTER FOR MCP4912 (10-BIT DAC)
WRITE COMMAND REGISTER FOR MCP4902 (8-BIT DAC)
pin is connected to 500 ktypical)
or DAC
Input Buffer Control bit
W-0
W-0
W-0
= V
= 2 * V
B
A
REF
B
W-x
D11
W-x
W-x
D9
D7
Selection bit
REF
* D/4096)
W = Writable bit
1 = bit is set
* D/4096)
W-x
D10
W-x
W-x
D8
D6
OUT
W-x
W-x
W-x
D9
D7
D5
is available.
W-x
W-x
W-x
D8
D6
D4
W-x
W-x
W-x
D7
D5
D3
U = Unimplemented bit, read as ‘0’
0 = bit is cleared
W-x
W-x
W-x
D6
D4
D2
W-x
W-x
W-x
D5
D3
D1
W-x
W-x
W-x
D4
D2
D0
2010 Microchip Technology Inc.
W-x
W-x
W-x
D3
D1
x = bit is unknown
x
W-x
W-x
W-x
D2
D0
x
W-x
W-x
W-x
D1
x
x
W-x
W-x
W-x
D0
bit 0
bit 0
bit 0
x
x
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