MC1508-8 Datasheet, PDF (5/6 Pages) NXP Semiconductors – 8-bit multiplying D/A converter

Philips Semiconductors Linear Products
8-bit multiplying D/A converter
Product specification
MC1508-8/1408-8
V_CC
A1 ⁵
A2 ⁶
7
A3
8
A4
9
A5
10
A6
A7 ¹¹
A8 ¹²
13
14
15
1
MC1508
MC1408
2
4
16
3
R₁₄ = R₁₅
R₁₄
(+)V_REF
R₁₅
R_L
I_O
SEE TEXT FOR VALUES OF C.
C
V_CC
A1 ⁵
A2 ⁶
7
A3
8
A4
9
A5
10
A6
A7 ¹¹
A8 ¹²
13
14
15
1
MC1508
MC1408
2
4
16
3
R₁₄ = R₁₅
R₁₄
(–)V_REF
R₁₅
R_L
I_O
SEE TEXT FOR VALUES OF C.
C
V_EE
Figure 1. Positive V_REF
8-BIT
COUNTER
V_EE
Figure 2. Negative V_REF
MSB
A1
A2
A3
12-BIT
D-TO-A
A4 CONVERTER
A5
(±0.02%
A6 ^{ERROR MAX)}
A7
A8A9 _{A10 A11 A12}
LSB
0 TO +10V OUTPUT
5k
50k
V_REF = 2V 0.1µF
100
950
R₁₄
V_CC
–
+
NE530
ERROR (1V = 1%)
MSB ¹⁴
13
5
6
7
8
MC1508
4
9
MC1408
10
11
12
LSB _{15 16 3 2 1}
1k
C
V_EE
Figure 3. Relative Accuracy
August 31, 1994
741