AD5737 Analog Devices, AD5737 Datasheet - Page 22

• Manufacturer Part Number: AD5737
• Description: Quad Channel, 12-Bit, Serial Input, 4-20mA Output DAC with Dynamic Power Control and HART Connectivity
• Manufacturer: Analog Devices

Specifications of AD5737

• Resolution (bits): 12bit
• Dac Settling Time: 15µs
• Max Pos Supply (v): +33V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: Ser,SPI

AD5737
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 expressed by the
following equations:
For the 0 mA to 20 mA range
For the 0 mA to 24 mA range
I
I
OUT
OUT
=
=
⎛
⎜ ⎜
⎝
⎛
⎜ ⎜
⎝
20
24
2
2
mA
mA
N
N
⎞
⎟ ⎟
⎠
⎞
⎟ ⎟
⎠
×
×
D
D
Rev. A | Page 22 of 44
For the 4 mA to 20 mA range
where:
D is the decimal equivalent of the code loaded to the DAC.
N is the bit resolution of the DAC.
I
OUT
=
⎛
⎜ ⎜
⎝
16
2
mA
N
⎞
⎟ ⎟
⎠
×
D
+
4
mA
Data Sheet