MCP4725A2T-E/CH Microchip Technology, MCP4725A2T-E/CH Datasheet - Page 25

• Manufacturer Part Number: MCP4725A2T-E/CH
• Description: DAC 1-CH Resistor-String 12-Bit 6-Pin SOT-23 T/R
• Manufacturer: Microchip Technology

Specifications of MCP4725A2T-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: MCP4725A2T-E/CH; MCP4725A2T-E/CHTR

FIGURE 6-2:
© 2009 Microchip Technology Inc.
START Bit
(B) Write DAC Register and EEPROM: (C2, C1, C0) = (0,1,1)
• The device updates the V
• For EEPROM Write:
(A) Write DAC Register: (C2, C1, C0) = (0,1,0) or
1st byte (Device Addressing)
- The Charge Pump initiates the EEPROM writing sequence at the falling edge of this ACK pulse.
- The RDY/BSY bit (pin) goes “low” at the falling edge of this ACK pulse and back to “high” immediately after
Note 1: RDY/BSY bit stays “low” during the EEPROM write. Any new write command including repeat bytes during the
Device Code Address Bits R/W
1
the EEPROM write is completed.
1
0
EEPROM write mode is ignored.
The RDY/BSY bit sets to “high” after the EEPROM write is completed.
0 A2 A1 A0 0
Write Commands for DAC Input Register and EEPROM.
OUT
C2 C1 C0
after this ACK pulse is issued.
C2 C1 C0
Write Command Type:
Write DAC Register: (C2 = 0, C1 = 1, C0 = 0)
Write DAC Register and EEPROM: (C2 = 0, C1 = 1, C0 = 1). See Note 1
ACK (MCP4725)
ACK (MCP4725)
X
2nd byte
Unused
X
2nd byte
X
X PD1 PD0
PD1 PD0 X
Repeat Bytes of 2nd - 4th bytes
X
Power Down Selection
D11 D10 D9 D8 D7 D6 D5 D4
D11 D10 D9 D8 D7 D6 D5 D4
Unused
3rd byte
3rd byte
DAC Register Data (12 bits)
D3 D2
ACK (MCP4725)
D3 D2
MCP4725
ACK (MCP4725)
D1
4th byte
D1
D0
4th byte
DS22039D-page 25
D0
X X X X
STOP Bit
Unused
X X X X
STOP
Bit