Rainbow Electronics MAX5661 - Manual (Page 35)

MAX5661
Single 16-Bit DAC with Current and Voltage
Outputs for Industrial Analog Output Modules
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Figure 11 shows a method of daisy chaining multiple
MAX5661 devices using a single CS and SCLK line with
the FAULT outputs shorted together. Connect DOUT
from IC1 to DIN of IC2, and DOUT from IC2 to DIN of IC3. Hold CS low for three 24-bit write cycles to load
data into all three devices. Due to the latency of read-
ing and writing to the different devices, using separate
lines for each FAULT output does not save time.
FAULT
DOUT
FAULT
DOUT
DOUT
FAULT
DIN DIN
SCLK SCLK
LDAC LDAC
CLR CLR
CS CS1
DIN
SCLK
LDAC
CLR
CS CS2
MAX5661
IC1
MAX5661
IC2
Figure 10. Address Two MAX5661 Devices Through Separate CS Lines
Driving Inductive Loads from I OUT
When driving inductive loads > 275µH with the current
output (I
OUT ), connect a 1nF capacitor between V DDI
and I OUT for optimal performance.