AD5725 Analog Devices, AD5725 Datasheet - Page 18

• Manufacturer Part Number: AD5725
• Description: Quad, 12-Bit, Parallel Input, Unipolar/Bipolar, Voltage Output DAC
• Manufacturer: Analog Devices

Specifications of AD5725

• Resolution (bits): 12bit
• Dac Update Rate: 144kSPS
• Dac Settling Time: 7µs
• Max Pos Supply (v): +15V
• Single-supply: Yes
• Dac Type: Voltage Out
• Dac Input Format: Par

AD5725
Figure 29 shows the AD5725 configured for −10 V to 0 V
operation. An
−10 V output, which is connected directly to V
reference voltage.
10µF
0.1µF
AD5725
AV
AV
ADR01
+15V
–15V
DD
SS
Figure 29. Unipolar −10 V Operation
V
V
REFP
REFN
and
0V TO –10V OPERATION
+15V
OP1177
0.2µF
V
TEMP
are configured to produce a
IN
ADR01
GND
U1
V
TRIM
OUT
REFP
OP1177
U2
+15V
–15V
V+
V–
for the
Rev. A | Page 18 of 20
SINGLE +5 V SUPPLY OPERATION
For operation with a +5 V supply, the reference voltage should
be set between +1.0 V and +2.5 V for optimum linearity. Figure 30
shows an
headroom of the reference and DAC are both sufficient to support
a +5 V supply with ±5 V tolerance. AV
connected to the same supply. Separate bypassing to each pin
should be used.
ADR03
5V
INPUT
GND
ADR03
0V TO 2.5V OPERATION
SINGLE 5V SUPPLY
OUTPUT
TRIM
Figure 30. +5 V Single-Supply Operation
10µF
used to supply a +2.5 V reference voltage. The
10kΩ
0.01µF
0.2µF
V
V
REFN
REFP
DD
AD5725
AV
AV
and V
DD
SS
L
should be
0.1µF
10µF