AD5381 Analog Devices, AD5381 Datasheet - Page 29

• Manufacturer Part Number: AD5381
• Description: 40-Channel 12-Bit 3 V/5 V Single-Supply Voltage-Output DAC
• Manufacturer: Analog Devices

Specifications of AD5381

• Resolution (bits): 12bit
• Dac Update Rate: 167kSPS
• Dac Settling Time: 6µs
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Par,Ser,SPI

SDA
SDA
SDA
SDA
SDA
SDA
SCL
SCL
SCL
START COND
SCL
SCL
SCL
BY MASTER
START COND
BY MASTER
REG1
REG1
1
REG1
MSB
1
0
REG0
MOST SIGNIFICANT DATA BYTE
REG0
REG0
0
0
0
MOST SIGNIFICANT DATA BYTE
POINTER BYTE FOR CHANNEL "NEXT CHANNEL"
ADDRESS BYTE
ADDRESS BYTE
MOST SIGNIFICANT BYTE
MSB
1
1
MSB
MSB
A5
0
0
A4
1
1
A3
AD1
AD1
A2
Figure 31. 4-Byte AD5381, I
Figure 32. 3-Byte AD5381, I
AD0
AD0
DATA FOR CHANNEL "NEXT CHANNEL"
A1
DATA FOR CHANNEL "N"
LSB
LSB
LSB
ACK BY
ACK BY
AD538x
A0
AD538x
R/W
R/W
ACK BY
AD538x
Rev. B | Page 29 of 40
ACK BY
AD538x
ACK BY
AD538x
ACK BY
AD538x
MSB
MSB
MSB
0
0
MSB
MSB
2
2
C Write Operation
C Write Operation
0
0
A5
A5
LEAST SIGNIFICANT DATA BYTE
POINTER BYTE FOR CHANNEL "N"
A4
A4
LEAST SIGNIFICANT DATA BYTE
LEAST SIGNIFICANT BYTE
POINTER BYTE
A3
A3
A2
A2
A1
A1
A0
A0
LSB
LSB
LSB
ACK BY
ACK BY
AD538x
AD538x
ACK BY
AD538x
ACK BY
AD538x
ACK BY
AD538x
STOP COND
BY MASTER
MASTER
AD5381
STOP
COND
BY