DUAL SUPPLY
±
2.5V
RATIOMETRIC VOLTAGE OUTPUT DAC
50K
50K
+V
REF
V+ = 2.5V
ALD
1702
-
+
V- = 2.5V
V+ = 2.5V
V
OUT
4
2
3 13
15
14
V
REF-
+V
REF
=2.5V
25K
B1
B2
B3
B4
5
6
7
8
12
11
10
9
ALD 1801
B8
B7
B6
B5
LSB
Zero Scale
LSB
Half Scale -LSB
Half Scale
Half Scale +LSB
Full Scale
B1
0
0
0
1
1
1
B2
0
0
1
0
0
1
B3
0
0
1
0
0
1
B4
0
0
1
0
0
1
B5
0
0
1
0
0
1
B6
0
0
1
0
0
1
B7
0
0
1
0
0
1
B8
0
1
1
0
1
1
V
OUT
-2.500
-2.480
-0.019
0.000
0.019
2.480
SINGLE SUPPLY 3.3V
RATIOMETRIC VOLTAGE OUTPUT DAC
50K
50K
V+
V+ = 3.3V
-
+
V
OUT
1/2 ALD2701
V+
50K
1/2 ALD2701
-
+
MSB
B1
0.1µF B2
B3
B4
4
2
3
13 15
14
25K
+V
REF
= V+
50K
5
6
7
8
12
11
10
9
ALD 1801
B8
B7
B6
B5
LSB
Zero Scale
Half Scale
Full Scale
B1
0
1
1
B2
0
0
1
B3
0
0
1
B4
0
0
1
B5
0
0
1
B6
0
0
1
B7
0
0
1
B8
0
0
1
V
OUT
0.000
1.650
3.287
ALD1801A/ALD1801B
ALD1801
Advanced Linear Devices
4
ALD [ ADVANCED LINEAR DEVICES ]
