AD5541JR Analog Devices Inc, AD5541JR Datasheet - Page 15

• Manufacturer Part Number: AD5541JR
• Description: D/A Converter (D-A) IC
• Manufacturer: Analog Devices Inc

Specifications of AD5541JR

• No. Of Pins: 8
• Peak Reflow Compatible (260 C): No
• No. Of Bits: 16 Bit
• Leaded Process Compatible: No
• Mounting Type: Surface Mount
• Interface Type: Serial
• Package / Case: 8-SOIC
• Rohs Status: RoHS non-compliant
• Design Resources: How to Achieve High Precision Voltage Level Setting Using AD5541A/42A (CN0169)
• Settling Time: 1µs
• Number Of Bits: 16
• Data Interface: DSP, MICROWIRE™, QSPI™, Serial, SPI™
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Power Dissipation (max): 6.05mW
• Operating Temperature: 0°C ~ 70°C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

APPLICATIONS INFORMATION
OPTOCOUPLER INTERFACE
The digital inputs of the AD5541/AD5542 are Schmitt-triggered so
that they can accept slow transitions on the digital input lines.
This makes these parts ideal for industrial applications where it
may be necessary to isolate the DAC from the controller via
optocouplers. Figure 29 illustrates such an interface.
POWER
SCLK
DIN
CS
Figure 29. AD5541/AD5542 in an Optocoupler Interface
10kΩ
10kΩ
10kΩ
V
V
V
DD
DD
DD
REGULATOR
SCLK
CS
DIN
5V
AD5541/AD5542
GND
V
DD
V
OUT
10µF
0.1µF
Rev. E | Page 15 of 20
DECODING MULTIPLE AD5541/AD5542s
The CS pin of the AD5541/AD5542 can be used to select one of
a number of DACs. All devices receive the same serial clock and
serial data, but only one device receives the CS signal at any one
time. The DAC addressed is determined by the decoder. There is
some digital feedthrough from the digital input lines. Using a
burst clock minimizes the effects of digital feedthrough on the
analog signal channels.
ADDRESS
ENABLE
CODED
SCLK
DIN
Figure 30. Addressing Multiple AD5541/AD5542s
EN
DECODER
DGND
V
DD
Figure 30
shows a typical circuit.
AD5541/AD5542
AD5541/AD5542
AD5541/AD5542
AD5541/AD5542
AD5541/AD5542
CS
DIN
SCLK
CS
DIN
SCLK
CS
DIN
SCLK
CS
DIN
SCLK
V
V
V
V
OUT
OUT
OUT
OUT