MC34001, B MC34002, B MC34004, B
Representative Circuit Schematic
(Each Amplifier)
Output
Bias Circuitry
Common to All
Amplifiers
VCC
Q3
Q4
Q5
Q2
Q1
Q6
鈥?/div>
Inputs
+
J1
J2
Q17
Q20
Q15
10 pF
Q14
Q21
Q12
Q10
Q13
Q11
Q16
Q9
Q8
Q7
Q25
Q22
Q24
Q19
Q23
24
2.0 k
J3
Q18
Offset
Null
(MC34001 only)
1.5 k
1.5 k
VEE
Figure 12. Output Current to Voltage Transformation
for a D鈥搕o鈥揂 Converter
VCC
Settling time to within 1/2 LSB is approximately 4.0
碌s
from the time all bits are switched (C = 68 pF).
Vref
The value of C may be selected to minimize overshoot
and ringing.
Theoretical VO
VO =
+
Io
鈥?/div>
MC34001
VO
Vref
A1
A2
A3 A4
A5
A6 A7 A8
+
+
+
+
+
+
+
(RO)
2
4
8
16
32
64 128 256
R1
R1
MSB A1
A2
A3
A4
A5
A6
A7
LSB A8
D鈥搕o鈥揂
1
R2
VCC = 15 V
15 pF
VEE
VEE = 鈥?5 V
RO
C
6
MOTOROLA ANALOG IC DEVICE DATA
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