MCP4728-E/UN Microchip Technology, MCP4728-E/UN Datasheet - Page 24

• 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
4.4
Each channel has its own volatile DAC input register
and EEPROM. The details of the input registers and
EEPROM are shown in
respectively.
TABLE 4-1:
Note 1:
TABLE 4-2:
Note 1:
DS22187E-page 24
Bit Name
Function
Function
Name
CH. A
CH. B
CH. C
CH. D
CH. A
CH. B
CH. C
CH. D
Bit
Bit
Bit
2:
2:
3:
DAC Input Registers and
Non-Volatile EEPROM Memory
EEPROM write status indication bit (flag).
Loaded from EEPROM during power-up, or can be updated by the user.
Device I
factory default setting is “000”. These bits can be reprogrammed by the user using the I
command.
Voltage Reference Select: 0 = External V
Gain Select: 0 = Gain of 1, 1 = Gain of 2.
(Note
/BSY
RDY
A2
I
2
0
C Address Bits
EEPROM MEMORY MAP AND FACTORY DEFAULT SETTINGS
(Note
1)
INPUT REGISTER MAP (VOLATILE)
2
C address bits. The user can also specify these bits during the device ordering process. The
Address Bits
A1
A2 A1 A0
0
(Note
1)
I
2
C
A0
0
2)
Table 4-1
(Note
Configuration Bits
(Note 2)
Select
V
Ref.
Select
V
REF
Ref.
Configuration Bits
1
1
1
1
REF
2)
DAC1 DAC0 PD1
DAC Channel
and
PD1
Power-Down
(Note 2)
0
0
0
0
Select
Table
PD0
0
0
0
0
Power-Down
4-2,
(Note 2)
REF
Select
(Note
Select
Gain
PD0
G
(V
0
0
0
0
X
DD
3)
(Note 2)
), 1 = Internal V
Select
Gain
G
D11
X
0
0
0
0
D11 D10 D9 D8 D7 D6 D5
D10
0
0
0
0
D9
0
0
0
0
REF
D8
DAC Input Data (12 bits)
0
0
0
0
(2.048V).
DAC Input Data (12 bits)
D7
0
0
0
0
© 2010 Microchip Technology Inc.
D6
0
0
0
0
(Note 2)
D5
0
0
0
0
D4
0
0
0
0
2
D4
C Address Write
D3
0
0
0
0
D3 D2 D1 D0
D2
0
0
0
0
D1
0
0
0
0
D0
0
0
0
0