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DAC8775IRWFT Fiches technique(PDF) 5 Page - Texas Instruments

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No de pièce DAC8775IRWFT
Description  Quad-Channel, 16-Bit Programmable Current Output and Voltage Output Digital-to-Analog Converter with Adaptive Power Management
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Fabricant  TI1 [Texas Instruments]
Site Internet  http://www.ti.com
Logo TI1 - Texas Instruments

DAC8775IRWFT Fiches technique(HTML) 5 Page - Texas Instruments

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DAC8775
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SLVSBY7 – FEBRUARY 2017
Product Folder Links: DAC8775
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Copyright © 2017, Texas Instruments Incorporated
Pin Functions (continued)
PIN
DESCRIPTION
NAME
NO.
IOUT_B
41
Current Output Pin (Channel B)
VPOS_IN_B
42
Positive power supply for VOUT_B and IOUT_B
VOUT_B
43
Voltage Output Pin (Channel B)
AVDD
44
Power supply for all analog circuitry of the device except buck-boost converters and output amplifiers
REFGND
45
Reference ground
REFIN
46
Reference input
REFOUT
47
Internal reference output. Connects to REFIN when using internal reference.
VOUT_C
48
Voltage Output Pin (Channel C)
VPOS_IN_C
49
Positive power supply for VOUT_C and IOUT_C
IOUT_C
50
Current Output Pin (Channel C)
VNEG_IN_C
51
Negative power supply for VOUT_C and IOUT_C
VOUT_D
52
Voltage Output Pin (Channel D)
VPOS_IN_D
53
Positive power supply for VOUT_D and IOUT_D
IOUT_D
54
Current Output Pin (Channel D)
VNEG_IN_D
55
Negative power supply for VOUT_D and IOUT_D
DAC_AGND_CD
56
Analog GND DAC Channels C and D
VSENSEN_D
57
Sense output pin for the negative voltage output (channel D) load connection.
VSENSEP_D
58
Sense output pin for the positive voltage output (channel D) load connection.
VSENSEN_C
59
Sense output pin for the negative voltage output (channel C) load connection.
VSENSEP_C
60
Sense output pin for the positive voltage output (channel C) load connection.
CCOMP_D
61
External compensation capacitor connection pin for VOUT_D . Addition of the external capacitor improves
the stability with high capacitive loads at the VOUT_D pin by reducing the bandwidth of the output
amplifier at the expense of increased settling time.
HARTIN_D
62
Input pin for HART modulation. for IOUT_D
CCOMP_C
63
External compensation capacitor connection pin for VOUT_C . Addition of the external capacitor improves
the stability with high capacitive loads at the VOUT_C pin by reducing the bandwidth of the output
amplifier at the expense of increased settling time.
HARTIN_C
64
Input pin for HART modulation. for IOUT_C
DVDD_EN
65
Internal power-supply enable pin. Connect this pin to PBKG to disable the internal DVDD, or leave this
pin unconnected to enable the internal DVDD. When this pin is connected to PBKG, an external supply
must be connected to the DVDD pin.
DVDD
66
Digital Supply pin (Input/Output) Internal DVDD enabled when DVDD_EN is floating, External DVDD must
be supplied when DVDD_EN is connected to PBKG
ALARM
67
ALARM pin. Open drain output. External pull-up resistor required (10 kΩ). The pin goes low (active) when
the ALARM condition is detected on any of the outputs (OUT_A through OUT_D) (open circuit, over
temperature, watchdog timeout, and others).
RESET
68
Reset input (active low). Logic low on this pin causes the device to perform a reset. A hardware reset
must be issued using this pin after power up.
PBKG
69
Chip substrate, connect to 0 V
VNEG_IN_C
70
Negative power supply for VOUT_C
VNEG_IN_D
71
Negative power supply for VOUT_D
DCDC_AGND_CD
72
Analog GND Buck-Boost converter Channels C and D


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