MCP4728EV Microchip Technology, MCP4728EV Datasheet - Page 33

• 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

FIGURE 1-19:
© 2009 Microchip Technology Inc.
(D) DAC D Output:
(B) DAC B Output:
(C) DAC C Output:
V
(A) DAC A Output:
V
OUT
OUT
Note that Dn and Gain (Gx) must be selected with the following conditions:
V
V
Where:
In Script file, V
In Script file, V
where V
No change. Keep its output with previous settings.
In Script file, V
OUT
OUT
V
V
LSB
REF
C
OUT
=
V
D
B
OUT
D
n
(
------------------------------ - G
=
V
= 2.0475
for Example 6: V
where V
REF
=
REF
=
(
----------------------------------- - G
4096
=
V
=
=
=
=
(
--------------------------------- - G
REF
= internal = 2.048V
V
(
------------------------------ - G
×
V
--------------------------- - G
V
DD
REF
4096
REF
REF
D
REF
REF
4096
V
2.048V if internal V
×
n
4096
4096
REF
Input code
V
×
)
DD
4095
= Internal, Gain (G
REF
= V
= Internal, Gain = 2, Dn for Channel D = 00FF (hex) = 255 (decimal)
×
4095
×
= internal = 2.048V, LSB =0.5 mV
if external V
255
DD
D
x
/4096
)
n
, Gain (G
)
)
x
x
=
OUT
=
x
x
=
V
V
X
REF
) = 1, Dn for Channel B = 0FFF (hex) = 4095 (decimal)
V
REF
≤
after Sequential Write Command.
REF
DD
X
) = 1, Dn for Channel C = 0FFF (hex) = 4095 (decimal)
V
⎛
⎝
DD
REF
⎛
⎝
⎛
⎝
----------- -
4096
255
4096 1
-------------------- -
is selected
4096 1
-------------------- -
4096
4096
is selected.
⎞ 2
⎠
–
–
=
⎞
⎠
⎞
⎠
V
Quick Start Instructions
=
=
REF
V
V
REF
DD
(
0.06226
⎛
⎝
⎛
⎝
1
1
–
–
----------- -
4096
----------- -
4096
) 2 ( )
1
1
⎞
⎠
⎞
⎠
=
=
=
V
0.255V
V
DD
REF
–
–
LSB
LSB
DS51837A-page 29