參數資料
| 型號： | AD5737ACPZ |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 4/44頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC QUAD 12BIT CUR 64-LFCSP |
| 標準包裝： | 1 |
| 設置時間： | 15µs |
| 位數： | 12 |
| 數據接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉換器數目： | 4 |
| 電壓電源： | 模擬和數字 |
| 工作溫度： | -40°C ~ 105°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-VFQFN 裸露焊盤，CSP |
| 供應商設備封裝： | 64-LFCSP-VQ（9x9） |
| 包裝： | 托盤 |
| 輸出數目和類型： | 4 電流，單極 |
| 采樣率（每秒）： | * |
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AD5737
Data Sheet
Rev. C | Page 12 of 44
Pin No.
Mnemonic
Description
14
CLEAR
Active High, Edge Sensitive Input. When this pin is asserted, the output current is set to the programmed
clear code bit setting. Only channels enabled to be cleared are cleared. For more information, see the
Asynchronous Clear section. When CLEAR is active, the DAC output register cannot be written to.
15
ALERT
Active High Output. This pin is asserted when there is no SPI activity on the interface pins for a preset time.
For more information, see the Alert Output section.
16
FAULT
Active Low, Open-Drain Output. This pin is asserted low when any of the following conditions is detected:
open circuit, PEC error, or an overtemperature condition (see the Fault Output section).
17
DGND
Digital Ground.
18
RESET
Hardware Reset, Active Low Input.
19
AV
DD
Positive Analog Supply Pin. The voltage range is from 9 V to 33 V.
20
NC
No Connect. Do not connect to this pin.
21
CHARTA
HART Input Connection for DAC Channel A. For more information, see the HART Connectivity section.
22
IGATEA
Optional Connection for External Pass Transistor. Leave this pin unconnected when using the dc-to-dc
converter. For more information, see the External PMOS Mode section.
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. For more information, see the DC-to-DC
Converter Compensation Capacitors section and the AI
CC Supply Requirements—Slewing section.
24
V
BOOST_A
Supply for Channel A Current Output Stage (see Figure 48). To use the dc-to-dc converter, connect this pin
as shown in Figure 55.
25
NC
No Connect. Do not connect to this pin.
26
I
OUT_A
Current Output Pin for DAC Channel A.
27
AGND
Ground Reference Point for Analog Circuitry. This pin must be connected to 0 V.
28
NC
No Connect. Do not connect to this pin.
29
CHARTB
HART Input Connection for DAC Channel B. For more information, see the HART Connectivity section.
30
NC
No Connect. Do not connect to this pin.
31
IGATEB
Optional Connection for External Pass Transistor. Leave this pin unconnected when using the dc-to-dc
converter. For more information, see the External PMOS Mode section.
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. For more information, see the DC-to-DC
Converter Compensation Capacitors section and the AI
CC Supply Requirements—Slewing section.
33
I
OUT_B
Current Output Pin for DAC Channel B.
34
V
BOOST_B
Supply for Channel B Current Output Stage (see Figure 48). To use the dc-to-dc converter, connect this pin
as shown in Figure 55.
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 converter, connect this pin as
shown in Figure 55.
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 converter, connect this pin as
shown in Figure 55.
40
AGND
Ground Reference Point for Analog Circuitry. This pin must be connected to 0 V.
41
SW
D
Switching Output for Channel D DC-to-DC Circuitry. To use the dc-to-dc converter, connect this pin as
shown in Figure 55.
42
GNDSW
D
Ground Connection for DC-to-DC Switching Circuit. This pin should always be connected to ground.
43
GNDSW
C
Ground Connection 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 converter, connect this pin as
shown in Figure 55.
45
AV
CC
Supply for DC-to-DC Circuitry. The voltage range is from 4.5 V to 5.5 V.
46
V
BOOST_C
Supply for Channel C Current Output Stage (see Figure 48). To use the dc-to-dc converter, connect this pin
as shown in Figure 55.
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. For more information, see the DC-to-DC
Converter Compensation Capacitors section and the AI
CC Supply Requirements—Slewing section.
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