MAX5547 Maxim Integrated Products, MAX5547 Datasheet - Page 10

• Manufacturer Part Number: MAX5547
• Description: Current-Sink Output DAC
• Manufacturer: Maxim Integrated Products

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