AD5780 Analog Devices, AD5780 Datasheet - Page 23
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AD5780
Manufacturer Part Number
AD5780
Description
Manufacturer
Analog Devices
Datasheet
1.AD5780.pdf
(28 pages)
Specifications of AD5780
Resolution (bits)
18bit
Dac Settling Time
2.5µs
Max Pos Supply (v)
+16.5V
Single-supply
No
Dac Type
Voltage Out
Dac Input Format
Ser
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Data Sheet
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 13. Software Control Register
MSB
DB23
R/W
0
1
2
Table 14. Software Control Register Functions
Bit Name
LDAC
CLR
Reset
The CLR function has no effect when the LDAC pin is low.
The LDAC function has no effect when the CLR pin is low.
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 12) and updates the DAC output. The output
value depends on the DAC register coding that is being used, either binary or twos complement.
Setting this bit to 1 returns the
DB22
1
Register address
DB21
0
AD5780
DB20
0
to its power-on state.
Rev. B | Page 23 of 28
DB19 to DB3
Reserved
Software control register data
DB2
Reset
DB1
CLR
1
DB0
LDAC
AD5780
2
LSB