AD5757 Analog Devices, AD5757 Datasheet - Page 24
AD5757
Manufacturer Part Number
AD5757
Description
Quad Channel, 16-Bit, Serial Input, 4-20mA Output DAC, Dynamic Power Control, HART Connectivity
Manufacturer
Analog Devices
Datasheet
1.AD5757.pdf
(44 pages)
Specifications of AD5757
Resolution (bits)
16bit
Dac Update Rate
60kSPS
Dac Settling Time
15µs
Max Pos Supply (v)
+33V
Single-supply
No
Dac Type
Current Out
Dac Input Format
SPI
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AD5757
TRANSFER FUNCTION
For the 0 mA to 20 mA, 0 mA to 24 mA, and 4 mA to 20 mA
current output ranges, the output current is respectively
expressed as
where:
D is the decimal equivalent of the code loaded to the DAC.
N is the bit resolution of the DAC.
I
I
I
OUT
OUT
OUT
=
=
=
⎡
⎢
⎣
⎡
⎢
⎣
⎡
⎢
⎣
16
24
20
2
2
2
mA
mA
N
N
mA
N
⎤
⎥
⎦
⎤
⎥
⎦
⎤
⎥
⎦
×
×
×
D
D
D
+
4
mA
Rev. B | Page 24 of 44
Data Sheet