CN0229 Datasheet, PDF (1/6 Pages) Analog Devices – Industrial Current

Circuits from the Lab™ reference circuits are engineered and
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analog, mixed-signal, and RF design challenges. For more
information and/or support, visit www.analog.com/CN0229.
Circuit Note
CN-0229
Devices Connected/Referenced
AD5750-2 Industrial Current/Voltage Output Driver
with Programmable Ranges
AD5686R
Quad, 16-Bit nanoDAC+ with 2.5 V,
2 ppm/°C On-Chip Reference
ADuM5400 Quad-Channel Isolator with Integrated
DC-to-DC Converter
ADuM1301 Triple-Channel Digital Isolator
4-Channel, Flexible, Configurable, Voltage, and Current Output Circuit for I/O Card
and PLC Applications
+5V
+5V_ISO
ADuM1301
SCLK
SDIN
SDO
AD5750-2 OUTPUT RANGES:
VOUT:
0V TO 5V, 0V TO 10V,
±5V, ±10V
IOUT:
0mA TO 20mA
0mA TO 24mA
4mA TO 20mA
±20mA, ±24mA
SYNC1
SCLK
SDIN
SDO
ADuM5400
SYNC1
SYNC2
LDAC
RESET
V_DD
GND
V_REF
V_LOGIC
SCLK
SYNC
SDIN
SDO
AD5686R/AD5685R/AD5684R
INPUT
REGISTER
DAC
REGISTER
INPUT
REGISTER
DAC
REGISTER
INPUT
REGISTER
DAC
REGISTER
INPUT
REGISTER
DAC
REGISTER
POWER-ON
RESET
STRING
DAC A
STRING
DAC B
STRING
DAC C
STRING
DAC D
GAIN
×1/×2
2.5V
REFERENCE
V_OUTA
BUFFER
V_OUTB
BUFFER
V_OUTC
BUFFER
V_OUTD
BUFFER
POWER-
DOWN
LOGIC
LDAC
RESET
RSTSEL
GAIN
FAULT INDICATOR
+15V –15V
DV_CC
AV_DD AV_SS
VREF ^{AD5750-2 FAULT}
VOUT _VOUT
RANGE
VIN
SCALE
IOUT
RANGE
SCALE
IOUT
GND
+15V –15V
VREF
VIN
DV_CC AV_DD AV_SS
FAULT
AD5750-2 _VOUT
GND
IOUT
+15V –15V
VREF
VIN
DV_CC AV_DD AV_SS
FAULT
AD5750-2
VOUT
GND
IOUT
+15V –15V
VREF
VIN
DV_CC AVDD
AD5750-2
GND
AV_SS
FAULT
VOUT
IOUT
Figure 1. Simplified Schematic of the Analog Output Circuit (All Connections and Protection Circuits Not Shown)
Rev. 0
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