MCP4728-E/UN Microchip Technology, MCP4728-E/UN Datasheet - Page 38

• 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

MCP4728
FIGURE 5-7:
DS22187E-page 38
Command Type Bits:
Start
S
Note 1: X is a don’t care bit. V
1
1
Device Addressing
pin to “Low”.
0
1st byte
0
A2 A1 A0
Fast Write Command: Write DAC Input Registers Sequentially from Channel A to D.
C2=0
X
X
X
R/W
OUT
0
X PD1 PD0 D11 D10 D9 D8 A D7 D6 D5 D4 D3 D2 D1 D0 A
X PD1 PD0 D11 D10 D9 D8 A D7 D6 D5 D4 D3 D2 D1 D0 A
X PD1 PD0 D11 D10 D9 D8 A D7 D6 D5 D4 D3 D2 D1 D0 A
C1=0
can be updated after the last byte’s ACK pulse is issued and by bringing down the LDAC
A
Fast Write
Command
(C2 C1)
0
2nd Byte
2nd Byte
2nd Byte
C0=X
0 PD1 PD0 D11 D10 D9 D8 A D7 D6 D5 D4 D3 D2 D1 D0 A
DAC Input Register of Channel D
DAC Input Register of Channel C
DAC Input Register of Channel B
2nd Byte
Update Channel D DAC Input Register at this ACK pulse.
Update Channel C DAC Input Register at this ACK pulse.
Update Channel B DAC Input Register at this ACK pulse.
Repeat Bytes
DAC Input Register of Channel A
ACK (MCP4728)
Update Channel A DAC Input Register at this ACK pulse.
ACK (MCP4728)
ACK (MCP4728)
ACK (MCP4728)
3rd Byte
3rd Byte
3rd Byte
© 2010 Microchip Technology Inc.
3rd Byte
P
Stop