AD5737 데이터 시트보기 (PDF) - Analog Devices
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AD5737 Datasheet PDF : 31 Pages
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Preliminary Technical Data
AD5757/AD5737
Pin No. Mnemonic
15
ALERT
16
FAULT
17
DGND
18
RESET
19
AVDD
20
N/C
21
CHARTA
22
IGATEA
23
COMPDCDC_A
24
VBOOST_A
25
N/C
26
IOUT_A
27
AVSS
28
N/C
29
CHARTB
30
N/C
31
IGATEB
32
COMPDCDC_B
33
IOUT_B
34
VBOOST_B
35
AGND
36
SW_B
37
GNDSW_B
38
GNDSW_A
39
SW_A
40
AVSS
41
SW_D
42
GNDSW_D
43
GNDSW_C
44
SW_C
45
AVCC
46
VBOOST_C
47
IOUT_C
48
COMPDCDC_C
49
IGATEC
50
N/C
51
CHARTC
52
N/C
Description
more information. When CLEAR is active, the DAC register cannot be written to.
Active High Output. This pin is asserted when there has been no SPI activity on the interface pins for a
predetermined time. See features section for more information.
Active Low Output. This pin is asserted low when an open circuit in current mode is detected or a short
circuit in voltage mode is detected or a PEC error is detected or an over temperature is detected (see
Features section). Open Drain Output.
Digital Ground Pin.
Hardware Reset. Active Low Input.
Positive Analog Supply Pin. Voltage ranges from 10.8 V to 33 V.
No Connection. Do not connect to this pin.
Hart Input Connection for DAC Channel A
Optional connection for external pass transistor. Not required when using DC-DC. Should be left unconnected.
DC-DC Compensation Capacitor. Connect a 10 nF capacitor from this pin to ground. Used to regulate the
feedback loop of channel A’s DC-DC converter.
Supply for channel A’s current output stage (See Figure 14). To use the DC-DC feature of the device,
connect as shown in Figure 20.
No Connection. Do not connect to this pin.
Current Output Pin for DAC Channel A.
Negative Analog Supply Pin. This Can be connected to AGND.
No Connection. Do not connect to this pin.
Hart Input Connection for DAC Channel B
No Connection. Do not connect to this pin.
Optional connection for external pass transistor. Not required when using DC-DC. Should be left unconnected.
DC-DC Compensation Capacitor. Connect a 10 nF capacitor from this pin to ground. Used to regulate the
feedback loop of channel B’s DC-DC converter.
Current Output Pin for DAC Channel B.
Supply for channel B’s current output stage (See Figure 14). To use the DC-DC feature of the device,
connect as shown in Figure 1.
Ground Reference Point for Analog Circuitry. This must be connected to 0 V.
Switching output for Channel B’s DC-DC circuitry. To use the DC-DC feature of the device, connect as
shown in Figure 1.
Ground connection for DC-DC switching circuit. This pin should always be connected to GND.
Ground connection for DC-DC switching circuit. This pin should always be connected to GND.
Switching output for Channel A’s DC-DC circuitry. To use the DC-DC feature of the device, connect as
shown in Figure 1.
Negative Analog Supply Pin.
Switching output for Channel D’s DC-DC circuitry. To use the DC-DC feature of the device, connect as
shown in Figure 1.
Ground connections for DC-DC switching circuit. This pin should always be connected to GND.
Ground connections for DC-DC switching circuit. This pin should always be connected to GND.
Switching output for Channel C’s DC-DC circuitry. To use the DC-DC feature of the device, connect as
shown in Figure 1.
Supply for DC-DC circuitry.
Supply for channel C’s current output stage (See Figure 14). To use the DC-DC feature of the device,
connect as shown in Figure 1.
Current Output Pin for DAC Channel C.
DC-DC Compensation Capacitor. Connect a 10 nF capacitor from this pin to ground. Used to regulate the
feedback loop of channel C’s DC-DC converter.
Optional connection for external pass transistor. Not required when using DC-DC. Should be left unconnected.
No Connection. Do not connect to this pin.
Hart Input Connection for DAC Channel B
No Connection. Do not connect to this pin.
Rev. PrD | Page 11 of 31
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