MC34004 Motorola, MC34004 Datasheet - Page 6

• Manufacturer Part Number: MC34004
• Description: (MC34001 - MC34004) JFET INPUT OPERATIONAL AMPLIFIERS
• Manufacturer: Motorola

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