AD5755 Analog Devices, AD5755 Datasheet - Page 15

• Manufacturer Part Number: AD5755
• Description: Quad Channel, 16-Bit, Serial Input,
• Manufacturer: Analog Devices

Specifications of AD5755

• Resolution (bits): 16bit
• Dac Update Rate: 91kSPS
• Dac Settling Time: 11µs
• Max Pos Supply (v): +33V
• Single-supply: No
• Dac Type: I or V Out
• Dac Input Format: SPI

Data Sheet
Pin No.
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Mnemonic
SW
AV
V
I
COMP
V
+V
−V
COMP
AV
I
V
V
COMP
+V
−V
COMP
REFIN
REFOUT
R
R
EPAD
OUT_C
OUT_D
BOOST_C
OUT_C
OUT_D
BOOST_D
SET_D
SET_C
CC
SS
SENSE_C
SENSE_C
SENSE_D
SENSE_D
C
DCDC_C
LV_C
DCDC_D
LV_D
External Reference Voltage Input.
Description
Switching Output for Channel C DC-to-DC Circuitry. To use the dc-to-dc feature of the device, connect as shown
in Figure 78.
Supply for DC-to-DC Circuitry.
Supply for Channel C Current Output Stage (see Figure 72). This is also the supply for the V
regulated to 15 V by the dc-to-dc converter. To use the dc-to-dc feature of the device, connect as shown in
Figure 78.
Current Output Pin for DAC Channel C.
DC-to-DC Compensation Capacitor. Connect a 10 nF capacitor from this pin to ground. Used to regulate the
feedback loop of the Channel C dc-to-dc converter. Alternatively, if using an external compensation resistor,
place a resistor in series with a capacitor to ground from this pin (see the DC-to-DC Converter Compensation
Capacitors and AICC Supply Requirements—Slewing sections in the Device Features section for more
information).
Buffered Analog Output Voltage for DAC Channel C.
Sense Connection for the Positive Voltage Output Load Connection for V
Sense Connection for the Negative Voltage Output Load Connection for V
of AGND for specified operation.
Optional Compensation Capacitor Connection for V
this pin and the V
reduces the bandwidth of the output amplifier, increasing the settling time.
Negative Analog Supply Pin.
Current Output Pin for DAC Channel D.
Buffered Analog Output Voltage for DAC Channel D.
Supply for Channel D Current Output Stage (see Figure 72). This is also the supply for the V
regulated to 15 V by the dc-to-dc converter. To use the dc-to-dc feature of the device, connect as shown in
Figure 78.
DC-to-DC Compensation Capacitor. Connect a 10 nF capacitor from this pin to ground. Used to regulate the
feedback loop of Channel D dc-to-dc converter. Alternatively, if using an external compensation resistor, place a
resistor in series with a capacitor to ground from this pin (see the DC-to-DC Converter Compensation Capacitors
and AICC Supply Requirements—Slewing sections in the Device Features section for more information).
Sense Connection for the Positive Voltage Output Load Connection for V
Sense Connection for the Negative Voltage Output Load Connection for V
of AGND for specified operation.
Optional Compensation Capacitor Connection for V
this pin and the V
reduces the bandwidth of the output amplifier, increasing the settling time.
Internal Reference Voltage Output. It is recommended to place a 0.1 μF capacitor between REFOUT and
REFGND.
An external, precision, low drift 15 kΩ current setting resistor can be connected to this pin to improve the I
temperature drift performance. See the Device Features section.
An external, precision, low drift 15 kΩ current setting resistor can be connected to this pin to improve the I
temperature drift performance. See the Device Features section.
Exposed Pad. This exposed pad should be connected to the potential of the AV
left electrically unconnected. It is recommended that the pad be thermally connected to a copper plane for
enhanced thermal performance.
OUT_C
OUT_D
pin allows the voltage output to drive up to 2 μF. Note that the addition of this capacitor
pin allows the voltage output to drive up to 2 μF. Note that the addition of this capacitor
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OUT_C
OUT_D
Output Buffer. Connecting a 220 pF capacitor between
Output Buffer. Connecting a 220 pF capacitor between
OUT_C
OUT_D
OUT_C
OUT_D
.
.
. This pin must stay within ±3.0 V
. This pin must stay within ±3.0 V
SS
pin, or, alternatively, it can be
OUT_x
OUT_x
stage, which is
stage, which is
AD5755
OUT_D
OUT_C