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| 型號： | EVAL-AD5755-1SDZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 6/52頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR AD5755-1 |
| 視頻文件： | AD5755: 16-Bit Multi-Channel, Voltage and Current Output DAC |
| 標準包裝： | 1 |
| DAC 的數(shù)量： | 4 |
| 位數(shù)： | 16 |
| 數(shù)據(jù)接口： | 串行 |
| 設(shè)置時間： | 11µs |
| DAC 型： | 電流/電壓 |
| 工作溫度： | -40°C ~ 105°C |
| 已供物品： | 板 |
| 已用 IC / 零件： | * |
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AD5755-1
Data Sheet
Rev. E | Page 14 of 52
Pin No.
Mnemonic
Description
15
ALERT
Active High Output. This pin is asserted when there has been no SPI activity on the interface pins for a
predetermined time. See the Device Features section for more information.
16
FAULT
Active Low Output. This pin is asserted low when an open circuit in current mode is detected, a short circuit in
voltage mode is detected, a PEC error is detected, or an overtemperature is detected (see the Device Features
section). Open-drain output.
17
POC
Power-On Condition. This pin determines the power-on condition and is read during power-on or, alternatively,
after a device reset. If POC = 0, the device is powered up with the voltage and current channels in tristate mode.
If POC = 1, the device is powered up with a 30 k pull-down resistor to ground on the voltage output channel,
and the current channel is in tristate mode.
18
RESET
Hardware Reset, Active Low Input.
19
AV
DD
Positive Analog Supply. The voltage range is from 9 V to 33 V.
20
COMP
LV_A
Optional Compensation Capacitor Connection for V
OUT_A Output Buffer. Connecting a 220 pF capacitor between
this pin and the V
OUT_A pin allows the voltage output to drive up to 2 F. Note that the addition of this capacitor
reduces the bandwidth of the output amplifier, increasing the settling time.
21
CHARTA
HART Input Connection for DAC Channel A.
22
+V
SENSE_A
Sense Connection for the Positive Voltage Output Load Connection for V
OUT_A.
23
COMP
DCDC_A
DC-to-DC Compensation Capacitor. Connect a 10 nF capacitor from this pin to ground. Used to regulate the
feedback loop of the Channel A 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 the AI
CC Supply Requirements—Slewing sections in the Device Features section for more
information).
24
V
BOOST_A
Supply for Channel A Current Output Stage (see Figure 73). This is also the supply for the V
OUT_x stage, which is
regulated to 15 V by the dc-to-dc converter. To use the dc-to-dc feature of the device, connect as shown in
25
V
OUT_A
Buffered Analog Output Voltage for DAC Channel A.
26
I
OUT_A
Current Output Pin for DAC Channel A.
27
AV
SS
Negative Analog Supply. Voltage range is from 0 V to 26.4 V.
28
COMP
LV_B
Optional Compensation Capacitor Connection for V
OUT_B Output Buffer. Connecting a 220 pF capacitor between
this pin and the V
OUT_B pin allows the voltage output to drive up to 2 F. Note that the addition of this capacitor
reduces the bandwidth of the output amplifier, increasing the settling time.
29
CHARTB
HART Input Connection for DAC Channel B.
30
+V
SENSE_B
Sense Connection for the Positive Voltage Output Load Connection for V
OUT_B.
31
V
OUT_B
Buffered Analog Output Voltage for DAC Channel B.
32
COMP
DCDC_B
DC-to-DC Compensation Capacitor. Connect a 10 nF capacitor from this pin to ground. Used to regulate the
feedback loop of the Channel B 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
CC Supply Requirements—Slewing sections in the Device Features section for more
information).
33
I
OUT_B
Current Output Pin for DAC Channel B.
34
V
BOOST_B
Supply for Channel B Current Output Stage (see Figure 73). This is also the supply for the V
OUT_x stage, which is
regulated to 15 V by the dc-to-dc converter. To use the dc-to-dc feature of the device, connect as shown in
35
AGND
Ground Reference Point for Analog Circuitry. This must be connected to 0 V.
36
SW
B
Switching Output for Channel B DC-to-DC Circuitry. To use the dc-to-dc feature of the device, connect as shown
37
GNDSW
B
Ground Connection for DC-to-DC Switching Circuit. This pin should always be connected to ground.
38
GNDSW
A
Ground Connection for DC-to-DC Switching Circuit. This pin should always be connected to ground.
39
SW
A
Switching Output for Channel A DC-to-DC Circuitry. To use the dc-to-dc feature of the device, connect as shown
40
AV
SS
Negative Analog Supply Pin. The voltage range is from 10.8 V to 26.4 V. This pin can be connected to 0 V if
using the device in unipolar supply mode.
41
SW
D
Switching Output for Channel D DC-DC Circuitry. To use the dc-to-dc feature of the device, connect as shown in
42
GNDSW
D
Ground Connections for DC-to-DC Switching Circuit. This pin should always be connected to ground.
43
GNDSW
C
Ground Connections for DC-to-DC Switching Circuit. This pin should always be connected to ground.
44
SW
C
Switching Output for Channel C DC-to-DC Circuitry. To use the dc-to-dc feature of the device, connect as shown
45
AV
CC
Supply for DC-to-DC Circuitry.
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