MCP4728EV Microchip Technology, MCP4728EV Datasheet - Page 24

• Manufacturer Part Number: MCP4728EV
• Description: BOARD EVAL 12BIT 4CH DAC MCP4728
• Manufacturer: Microchip Technology
• Type: D/Ar

Specifications of MCP4728EV

• Number Of Dac's: 4
• Number Of Bits: 12
• Outputs And Type: 1, Single Ended
• Data Interface: I²C
• Settling Time: 6µs
• Dac Type: Voltage
• Voltage Supply Source: Single
• Operating Temperature: -40°C ~ 125°C
• Utilized Ic / Part: MCP4728
• Product: Data Conversion Development Tools
• Resolution: 12 bit
• Interface Type: I2C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Silicon Manufacturer: Microchip
• Silicon Core Number: MCP4728
• Kit Application Type: Data Converter
• Application Sub Type: DAC
• Kit Contents: Board
• For Use With/related Products: MCP4728
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

MCP4728 Evaluation Board User’s Guide
FIGURE 1-13:
Gain = 1 for All Channels.
DS51837A-page 20
Start
1
1
0
Address Byte
1st Byte
The following example shows when the device receives the Fast Write command
with the following data:
0
(C) Channel C Output:
(A) Channel A Output:
(B) Channel B Output:
(D) Channel D Output:
0
DAC Input Data of Channel C = 000011-11111111
DAC Input Data of Channel A = 001111-11111111
DAC Input Data of Channel B = 000111-11111111
DAC Input Data of Channel D = 000001-11111111
V
V
V
In Script file, Dn for Channel A = 0FFF (hex) = 4095 (decimal)
In Script file, Dn for Channel B = 07FF (hex) = 2047 (decimal)
In Script file, Dn for Channel C = 03FF (hex) = 1023 (decimal)
OUT
In Script file, Dn for Channel D = 01FF (hex) = 511 (decimal)
V
V
OUT
0
OUT
V
OUT
OUT
OUT
0
A
B
C
Fast Mode Write Command
D
=
for Example 3: Fast Write Command for Various V
0 A
=
=
(
------------------------------ - G
=
V
=
(
--------------------------------- -
(
--------------------------------- -
REF
V
V
V
------------------------------- -
4096
V
---------------------------- -
0
DD
DD
DD
DD
4096
4096
×
0
4096
4096
×
×
×
D
×
4095
2047
1023
n
511
0
)
x
0
)
)
2nd Byte
=
=
=
=
D11
V
V
V
V
DD
DD
DD
DD
D10
⎛
⎝
⎛
⎝
⎛
⎝
⎛
⎝
4096 1
-------------------- -
2048 1
-------------------- -
512 1
----------------- -
1024 1
-------------------- -
4096
4096
4096
4096
D9
–
–
–
–
⎞
⎠
DAC A
⎞
⎠
⎞
⎠
=
⎞
⎠
D8
=
=
=
V
---------- - 1
V
V
---------- - 1
V
---------- - 1
DD
8
A
DD
DD
2
DD
4
⎛
⎝
D7
⎛
⎝
⎛
⎝
⎛
⎝
1
–
–
–
–
----------- -
4096
D6
----------- -
4096
----------- -
4096
----------- -
4096
8
1
2
4
⎞
⎠
D5
⎞
⎠
⎞
⎠
=
⎞
⎠
=
=
=
3rd Byte
V
---------- -
V
D4
V
---------- -
V
---------- -
DD
8
OUT
DD
DD
2
DD
4
© 2009 Microchip Technology Inc.
–
D3
–
. V
–
–
LSB
LSB
REF
LSB
LSB
D2
= V
D1
Next DAC Channels
DD
D0
and
A
Stop