AD5628 Analog Devices, AD5628 Datasheet - Page 25

• Manufacturer Part Number: AD5628
• Manufacturer: Analog Devices

Specifications of AD5628

• Resolution (bits): 12bit
• Dac Update Rate: 95kSPS
• Dac Settling Time: 6µs
• Max Pos Supply (v): +5.5V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Ser,SPI

Data Sheet
Table 10. Internal Reference Register
Internal REF Register (DB0)
0
1
Table 11. 32-Bit Input Shift Register Contents for Reference Set-Up Command
MSB
DB31 to DB28
X
Don’t cares
Table 12. Power-Down Modes of Operation
DB9
0
0
1
1
Table 13. 32-Bit Input Shift Register Contents for Power-Down/Power-Up Function
MSB
DB31
to
DB28
X
Don’t
cares
Table 14. Clear Code Register
DB1
CR1
0
0
1
1
Table 15. 32-Bit Input Shift Register Contents for Clear Code Function
MSB
DB31 to DB28
X
Don’t cares
DB27
0
Clear Code Register
Command bits (C3 to C0)
DB26
1
DB8
0
1
0
1
DB0
CR0
0
1
0
1
DB27
0
DB27
1
DB25
0
Command bits (C3 to C0)
Command bits (C3 to C0)
DB26
1
DB24
0
DB26
0
Operating Mode
Normal operation
Power-down modes
1 kΩ to GND
100 kΩ to GND
Three-state
DB23
X
Clears to Code
0x0000
0x8000
0xFFFF
No operation
DB25
0
DB25
0
Address bits (A3 to A0)—
DB22
X
STRING DAC
don’t cares
RESISTOR
DB24
1
DB24
0
Figure 61. Output Stage During Power-Down
DB21
X
DB23
X
DB23
X
DB20
X
Address bits (A3 to A0)—don’t cares
Rev. F | Page 25 of 32
POWER-DOWN
Address bits (A3 to A0)—don’t cares
AMPLIFIER
CIRCUITRY
DB19
to
DB10
X
Don’t
cares
DB22
X
DB22
X
Action
Reference off (default)
Reference on
DB9
PD1
down mode
Power-
DB21
X
DB8
PD0
DB21
X
RESISTOR
NETWORK
DB7
H
DAC
Power-down/power-up channel selection—set bit to 1 to select
DB20
X
V
OUT
DB20
X
DB6
DAC
G
AD5628/AD5648/AD5668
DB5
DAC
F
DB19 to DB2
X
Don’t cares
DB19 to DB1
X
Don’t cares
DB4
DAC
E
DB3
DAC
D
DB1
CR1
Clear code register
DB2
DAC
C
LSB
DB0
1/0
Internal REF
register
DB1
DAC
B
LSB
DB0
CR0
LSB
DB0
DAC
A