MCP4728-E/UN Microchip Technology, MCP4728-E/UN Datasheet - Page 41

• 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 5-10:
© 2009 Microchip Technology Inc.
Command Type Bits:
Start
C2 C1 C0 W1 W0
0
S
Single Write
Command
1
1
0
1
Device Addressing
1
0
1 DAC1 DAC0 UDAC A V
Note 1:
1st byte
0
A2 A1 A0
2:
Single Write Command: Write to a Single DAC Input Register and EEPROM.
Channel
Select
2nd Byte
The MCP4728 device starts writing EEPROM at the falling edge of the 4th byte’s ACK
pulse.
V
If UDAC = 0 or LDAC Pin = 0: V
EEPROM Write:
C2=0
OUT
ACK (MCP4728)
Update:
R/W
0
C1=1
A
REF
C0=0
PD1 PD0 Gx D11 D10 D9 D8 A D7 D6 D5 D4 D3 D2 D1 D0 A
3rd Byte
W1=1
OUT
DAC Input Register of Selected Channel
is updated after the 4th byte’s ACK is issued.
W0=1
ACK (MCP4728)
Note 1 and Note 2
4th Byte
MCP4728
DS22187A-page 41
Stop
P