MCP4728-E/UN Microchip Technology, MCP4728-E/UN Datasheet - Page 43

• Manufacturer Part Number: MCP4728-E/UN
• Description: IC DAC 12BIT W/I2C 10-MSOP
• Manufacturer: Microchip Technology

Specifications of MCP4728-E/UN

• Number Of Converters: 4
• Settling Time: 6µs
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Number Of Bits: 12
• Data Interface: I²C
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Number Of Dac Outputs: 4
• Resolution: 12 bit
• Interface Type: I2C
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Supply Current: 110 mA
• Voltage Reference: 2.048 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP4728EV - BOARD EVAL 12BIT 4CH DAC MCP4728
• Power Dissipation (max): -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

FIGURE 5-12:
Registers.
FIGURE 5-13:
Registers.
© 2009 Microchip Technology Inc.
Command Type Bits:
Command Type Bits:
Start
S
(C2 C1 C0)
1
1
Command
1
Write
Start
0
Device Addressing
S
0
1
Note 1: V
Note 1:
1
1st byte
0 A2 A1 A0
X
Device Addressing
1
2:
Write Command: Write Voltage Reference Selection Bit (V
Write Command: Write Power-Down Selection Bits (PD1, PD0) to the DAC Input
PD1 A PD0 A PD1 B PD0 B A
Channel A
0
V
V
V
V
X is don’t care bit.
X is don’t care bit.
REF
REF
REF
REF
REF
C2=1
C2=1
1st byte
0
= 1: Internal Reference (2.048V)
= 0: V
A = Voltage reference of Channel A
B = Voltage reference of Channel B
C = Voltage reference of Channel C
D = Voltage reference of Channel D
ACK (MCP4728)
A2 A1 A0
R/W
2nd Byte
0
DD
C1=0
C1=0
A
Channel B
R/W
0
C0=0
C0=1
A
(C2 C1 C0)
1
Command
Write
PD1 C PD0 C PD1 D
0
Channel C
0
X V
ACK (MCP4728)
Registers and V
at this falling edge of ACK pulse.
REF
ACK (MCP4728)
A V
at this falling edge of ACK pulse.
Registers and V
Channel D
2nd Byte
REF
3rd Byte
Note 1
PD0 D
B V
OUT
REF
are updated
REF
OUT
C V
X
) to the DAC Input
are updated
REF
MCP4728
X
D A
X
DS22187A-page 43
X
Stop
P
A
Stop
P