Datasheet

MAX5742
12-Bit, Low-Power, Quad, Voltage-Output
DAC with Serial Interface
12 ______________________________________________________________________________________
CONTROL DATA BITS
C3 C2 C1 C0 D11–D0
DAC FUNCTION
0 0 0 0 X A Input register transparent, data shifted directly to DAC register, OUTA updated
0 0 0 1 X B Input register transparent, data shifted directly to DAC register, OUTB updated
0 0 1 0 X C Input register transparent, data shifted directly to DAC register, OUTC updated
0 0 1 1 X D Input register transparent, data shifted directly to DAC register, OUTD updated
0 1 0 0 X A Data shifted to input register, OUTA unchanged
0 1 0 1 X B Data shifted to input register, OUTB unchanged
0 1 1 0 X C Data shifted to input register, OUTC unchanged
0 1 1 1 X D Data shifted to input register, OUTD unchanged
1 0 0 0 X A Shift data from input register to DAC register, OUTA updated
1 0 0 1 X B Shift data from input register to DAC register, OUTB updated
1 0 1 0 X C Shift data from input register to DAC register, OUTC updated
1 0 1 1 X D Shift data from input register to DAC register, OUTD updated
1100 X A–D
Input registers transparent, data shifted directly to DAC registers, OUTA–OUTD
updated
1101 X A–D Data shifted to input registers, OUTA–OUTD unchanged
1110 X A–D Shift data from input registers to DAC registers, OUTA–OUTD updated
X = Don’t care
Table 2. Serial-Interface Programming Commands
DAC_
REF
V
DD
+2.7V TO +5.5V
OUT_
GND
IN
OUT
GND
MAX6050
MAX5742
Figure 3. Typical Operating Circuit, Unipolar Output
DAC_
MAX5742
REF
V-
V+
V
OUT
R1
R2
OUT_
R1 = R2
V
DD
+2.7V TO +5.5V
Figure 4. Bipolar Output Circuit