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參數(shù)資料
| 型號： | EVAL-AD5757SDZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 4/44頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVAL FOR AD5757 |
| 標(biāo)準(zhǔn)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： | 15µs |
| DAC 型： | 電流 |
| 工作溫度： | -40°C ~ 105°C |
| 已供物品： | 板 |
| 已用 IC / 零件： | AD5757 |
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AD5757
Data Sheet
Rev. D | Page 12 of 44
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.
18
RESET
Hardware Reset. Active Low Input.
19
AV
DD
Positive Analog Supply. The voltage range is from 10.8 V to 33 V.
20, 25,
28, 30,
50, 52,
55, 60
NC
No Connect. Do not connect to this pin.
21
CHARTA
HART Input Connection for DAC Channel A.
22
IGATEA
Optional Connection for External Pass Transistor. Should be left unconnected when using the dc-to-dc converter. See
the External PMOS Mode section for more information.
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 49). To use the dc-to-dc feature of the device, connect as
shown in Figure 56.
26
I
OUT_A
Current Output Pin for DAC Channel A.
27, 40, 53
AGND
Ground Reference Point for Analog Circuitry. This must be connected to 0 V.
29
CHARTB
HART Input Connection for DAC Channel B.
31
IGATEB
Optional Connection for External Pass Transistor. Should be left unconnected when using the dc-to-dc converter.
See the External PMOS Mode section for more information.
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 49). To use the dc-to-dc feature of the device, connect as
shown in Figure 56.
35
AGND
Ground Reference Point for Analog Circuitry. This pin 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
41
SW
D
Switching Output for Channel D DC-to-DC Circuitry. To use the dc-to-dc feature of the device, connect as shown
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.
46
V
BOOST_C
Supply for Channel C Current Output Stage (see Figure 49). To use the dc-to-dc feature of the device, connect as
shown in Figure 56.
47
I
OUT_C
Current Output Pin for DAC Channel C.
48
COMP
DCDC_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
CC Supply Requirements—Slewing sections in the Device Features section for more
information).
49
IGATEC
Optional Connection for External Pass Transistor. Should be left unconnected when using the dc-to-dc converter. See
the External PMOS Mode section for more information.
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