MCP4728-E/UN Microchip Technology, MCP4728-E/UN Datasheet - Page 27

• 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

TABLE 4-5:
4.9
Table 4-6
code vs. analog output. The MSB of the input data is
always transmitted first and the format is unipolar
binary.
© 2009 Microchip Technology Inc.
Note 1:
LDAC Pin UDAC Bit
DAC Input Code
111111111111
111111111110
000000000010
000000000001
000000000000
0
0
1
1
Analog Output Vs. DAC Input
Code
shows an example of the DAC input data
(a) LSB with gain of 1 = 0.5 mV, and (b) LSB with gain of 2 = 1 mV.
0
1
0
1
LDAC AND UDAC
CONDITIONS VS. OUTPUT
UPDATE
Selection
Update all DAC channel
outputs.
Update all DAC channel
outputs.
Update a selected DAC
channel output.
No update
Gain
x1
x2
x1
x2
x1
x2
x1
x2
x1
x2
DAC Output (V
V
REF
= Internal (2.048 V)
Nominal Output Voltage (V)
OUT
2*V
2*V
V
V
(See Note 1)
REF
REF
)
REF
REF
2 LSB
2 LSB
1 LSB
1 LSB
- 1 LSB
- 2 LSB
0
0
- 1 LSB
- 2 LSB
TABLE 4-6:
Selection
Ignored
Gain
DAC INPUT CODE VS.
ANALOG OUTPUT (V
Nominal Output Voltage (V)
V
REF
= V
MCP4728
V
V
DD
DD
DD
2 LSB
1 LSB
- 1 LSB
- 2 LSB
DS22187A-page 27
0
OUT
)