AD5412ACPZ AD [Analog Devices], AD5412ACPZ Datasheet - Page 27

• Manufacturer Part Number: AD5412ACPZ
• Description: Single Channel, 12/16-Bit, Serial Input, Current Source & Voltage Output DAC
• Manufacturer: AD [Analog Devices]

Preliminary Technical Data
POWER-ON STATE
On power-up of the AD5412/AD5422, the power-on-reset
circuit ensures that all registers are loaded with zero-code, as
such both outputs will be disabled. (V
TRANSFER FUNCTION
Voltage Output
For a unipolar voltage output range, the output voltage can be
expressed as:
For a bipolar voltage output range, the output voltage can be
expressed as:
where:
D is the decimal equivalent of the code loaded to the DAC.
N is the bit resolution of the DAC.
V
Gain is an internal gain whose value depends on the output
range selected by the user as shown in Table 11.
REFIN
V
V
is the reference voltage applied at the REFIN pin.
OUT
OUT
=
=
V
V
REFIN
REFIN
×
×
Gain
Gain
⎡
⎢ ⎣
⎡
⎢ ⎣
2
2
D
D
N
N
⎤
⎥ ⎦
⎤
⎥ ⎦
−
Gain
OUT
×
2
V
and I
REFIN
OUT
in tri-state).
Rev. PrF | Page 27 of 38
Table 11.
Output Range
+5 V
+10 V
±5 V
±10 V
Current Output
For the 0 to 20mA, 0 to 24mA and 4 to 20mA 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
OUT
I
I
OUT
OUT
=
⎡
⎢ ⎣
16
=
=
2
⎡
⎢ ⎣
⎡
⎢ ⎣
mA
N
20
24
2
2
mA
mA
⎤
⎥ ⎦
N
N
×
Gain Value
1
2
2
4
D
⎤
⎥ ⎦
⎤
⎥ ⎦
AD5412/AD5422
×
×
+
D
D
4
mA