Chip information, Table 1. command word summary, Table 2. ideal dac output code table – Rainbow Electronics MAX5547 User Manual
Page 10
MAX5547
Dual, 10-Bit, Current-Sink Output DAC
10
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CONTROL BITS
MSB
DATA BITS
LSB
REGISTER FUNCTION
C3
C2
C1
C0
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
S1
S0
0
0
0
0
X
X
X
X
X
X
X
X
X
X
0
0
External reference mode (default
state). Connect an external voltage
source at REF from +2.45V to
+2.55V.
1
0
0
0
X
X
X
X
X
X
X
X
X
X
0
0
Internal reference mode. Internal
reference is +2.5V.
0
0
1
0
10-bit data
0
0
Load DAC register A and set I
OUTA
full-scale range to 1.2mA.
0
0
1
1
10-bit data
0
0
Load DAC register A and set I
OUTA
full-scale range to 3.6mA.
0
1
0
0
10-bit data
0
0
Load DAC register B and set I
OUTB
full-scale range to 1.2mA.
0
1
0
1
10-bit data
0
0
Load DAC register B and set I
OUTB
full-scale range to 3.6mA.
0
1
1
0
10-bit data
0
0
Load DAC registers A and B and
set I
OUTA
and I
OUTB
full-scale
ranges to 1.2mA (default state).
0
1
1
1
10-bit data
0
0
Load DAC registers A and B and
set I
OUTA
and I
OUTB
ranges to
3.6mA.
Table 1. Command Word Summary
X = Don’t care. Unused codes are reserved for factory use.
BINARY DAC CODE
I
OUT
_
11 1111 1111
10 0000 0000
00 0000 0001
00 0000 0000
0
Table 2. Ideal DAC Output Code Table
1023
1023
×
I
FS
512
1023
×
I
FS
1023
I
FS
Chip Information
PROCESS: BiCMOS