AD5781 Analog Devices, AD5781 Datasheet - Page 24
![no-image](/images/manufacturer_photos/0/0/56/analog_devices_sml.jpg)
AD5781
Manufacturer Part Number
AD5781
Description
Manufacturer
Analog Devices
Datasheet
1.AD5781.pdf
(28 pages)
Specifications of AD5781
Resolution (bits)
18bit
Dac Update Rate
1MSPS
Dac Settling Time
1µs
Max Pos Supply (v)
+33V
Single-supply
No
Dac Type
Unbuffered Vout
Dac Input Format
Ser,SPI
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AD5781ARUZ
Manufacturer:
AD
Quantity:
210
Part Number:
AD5781BRUZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Part Number:
AD5781SRU-EP
Manufacturer:
ADI/亚德诺
Quantity:
20 000
AD5781
Software Control Register
This is a write only register in which writing a 1 to a particular bit has the same effect as pulsing the corresponding pin low.
Table 14. Software Control Register
MSB
DB23
R/ W
0
1
2
Table 15. Software Control Register Functions
Function
LDAC
CLR
RESET
The CLR function has no effect if the LDAC pin is low.
The LDAC function has no effect if the CLR pin is low.
Setting this bit to 1 returns the
Description
Setting this bit to 1 updates the DAC register and consequently the DAC output.
Setting this bit to 1 sets the DAC register to a user defined value (see Table 13) and updates the DAC output. The output
value depends on the DAC register coding that is being used, either binary or twos complement.
DB22
1
Register address
DB21
0
AD5781
DB20
0
to its power-on state.
Rev. C | Page 24 of 28
DB19
Reserved
DB3
Software control register data
DB2
RESET
DB1
CLR
1
Data Sheet
DB0
LDAC
2
LSB