AD5724 Analog Devices, AD5724 Datasheet - Page 26

• Manufacturer Part Number: AD5724
• Description: Complete, Quad, 12-Bit, Serial Input, Unipolar/Bipolar Voltage Output DACs
• Manufacturer: Analog Devices

Specifications of AD5724

• Resolution (bits): 12bit
• Dac Update Rate: 100kSPS
• Dac Settling Time: 8.5µs
• Max Pos Supply (v): +16.5V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Ser,SPI

AD5724/AD5734/AD5754
POWER CONTROL REGISTER
The power control register is addressed by setting the three REG bits to 010. This register allows the user to control and determine the
power and thermal status of the AD5724/AD5734/AD5754. The power control register options are shown in Table 26 and Table 27.
Table 26. Programming the Power Control Register
MSB
R/ W
0
Table 27. Power Control Register Functions
Option
PU
PU
PU
PU
TSD
OC
OC
OC
OC
A
B
C
D
A
B
C
D
Zero
0
Description
DAC A power-up. When set, this bit places DAC A in normal operating mode. When cleared, this bit places DAC A in power-down
mode (default). After setting this bit to power DAC A, a power up time of 10 μs is required. During this power-up time, the DAC
register should not be loaded to the DAC output (see the Load DAC/LDAC section). If the clamp enable bit of the control register
is cleared, DAC A powers down automatically upon detection of an overcurrent, and PU
DAC B power-up. When set, this bit places DAC B in normal operating mode. When cleared, this bit places DAC B in power-down
mode (default). After setting this bit to power DAC B, a power up time of 10 μs is required. During this power-up time, the DAC
register should not be loaded to the DAC output (see the Load DAC/LDAC section). If the clamp enable bit of the control register
is cleared, DAC B powers down automatically upon detection of an overcurrent, and PU
DAC C power-up. When set, this bit places DAC C in normal operating mode. When cleared, this bit places DAC C in power-down
mode (default). After setting this bit to power DAC C, a power up time of 10 μs is required. During this power-up time, the DAC
register should not be loaded to the DAC output (see the Load DAC/LDAC section). If the clamp enable bit of the control register
is cleared, DAC C powers down automatically upon detection of an overcurrent, and PU
DAC D power-up. When set, this bit places DAC D in normal operating mode. When cleared, this bit places DAC D in power-down
mode (default). After setting this bit to power DAC D, a power up time of 10 μs is required. During this power-up time, the DAC
register should not be loaded to the DAC output (see the Load DAC/LDAC section). If the clamp enable bit of the control register
is cleared, DAC D powers down automatically upon detection of an overcurrent, and PU
Thermal shutdown alert. Read-only bit. In the event of an overtemperature situation, the four DACs are powered down and this
bit is set.
DAC A overcurrent alert. Read-only bit. In the event of an overcurrent situation on DAC A, this bit is set.
DAC B overcurrent alert. Read-only bit. In the event of an overcurrent situation on DAC B, this bit is set.
DAC C overcurrent alert. Read-only bit. In the event of an overcurrent situation on DAC C, this bit is set.
DAC D overcurrent alert. Read-only bit. In the event of an overcurrent situation on DAC D, this bit is set.
REG2
0
REG1
1
REG0
0
A2
0
A1
0
A0
0
DB15 to
DB11
X
Rev. D | Page 26 of 32
DB10
OC
D
DB9
OC
C
DB8
OC
B
DB7
OC
A
DB6
0
B
A
C
D
is cleared to reflect this.
is cleared to reflect this.
is cleared to reflect this.
is cleared to reflect this.
DB5
TSD
DB4
0
DB3
PU
D
DB2
PU
C
DB1
PU
B
LSB
DB0
PU
A