MCP4725A3T-E/CH Microchip Technology, MCP4725A3T-E/CH Datasheet - Page 24

• Manufacturer Part Number: MCP4725A3T-E/CH
• Description: DAC 1-CH Resistor-String 12-Bit 6-Pin SOT-23 T/R
• Manufacturer: Microchip Technology

Specifications of MCP4725A3T-E/CH

• Package: 6SOT-23
• Resolution: 12 Bit
• Architecture: Resistor-String
• Digital Interface Type: Serial (2-Wire, I2C)
• Number Of Outputs Per Chip: 1
• Output Type: Voltage
• Full Scale Error: ±2 %FSR
• Integral Nonlinearity Error: ±14.5 LSB
• Maximum Settling Time: 6(Typ) us
• Settling Time: 6µs
• Number Of Bits: 12
• Data Interface: I²C, Serial
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: SOT-23-6
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MCP4725DM-PTPLS - BOARD DAUGHTER PICTAIL MCP4725
• Power Dissipation (max): -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MCP4725A3T-E/CH; MCP4725A3T-E/CHTR

MCP4725
TABLE 6-2:
FIGURE 6-1:
DS22039D-page 24
Note 1:
C
2
0
0
0
0
1
1
1
1
Write DAC Register using Fast Mode Write Command: (C2, C1) = (0, 0)
START Bit
Note 1: A2 and A1 bits are programmed at the factory by hard-wired, and A0 bit is determined by the logic state
C
1
0
0
1
1
0
0
1
1
2:
1st byte (Device Addressing)
Device Code Address
1
C0
2: The device updates V
X
X
0
1
0
1
0
1
X = Dont’ Care. Fast Mode does not use C0 bit.
The MCP4725 ignores the “Reserved” commands.
1
of A0 pin.
0
Write DAC Register
Write DAC Register
WRITE COMMAND TYPE
Command Name
0
Fast Mode
Fast Mode Write Command.
EEPROM
Reserved
Reserved
Reserved
Reserved
see Note 1
A2
and
Bits
A1 A0
“
0
R/W
OUT
ACK (MCP4725)
Read/Write Command
0
at the falling edge of the ACK pulse of the 3rd byte.
0
This command is used to change the DAC register. EEPROM is not
affected
“
Load configuration bits and data code to the DAC Register
(a) Load configuration bits and data code to the DAC Register and
(b) also write the EEPROM
Reserved for future use
Reserved for future use
Reserved for future use
Reserved for future use
0 PD1 PD0 D11
0
Fast Mode Command (C2, C1 = 0, 0)
PD1 PD0 D11
2nd byte
Repeat bytes of 2nd and 3rd bytes
2nd byte
Power Down Select
D10 D9
D10 D9
DAC Register Data (12 bits)
ACK (MCP4725)
D8
D8
ACK (MCP4725)
D7 D6 D5 D4 D3
D7 D6 D5 D4 D3
Function
3rd byte
© 2009 Microchip Technology Inc.
3rd byte
D2 D1
D2 D1
ACK (MCP4725)
ACK (MCP4725)
D0
D0
see Note 2
see Note 2
STOP Bit
STOP Bit