MC34071,2,4,A MC33071,2,4,A
Figure 43. Low Voltage Fast D/A Converter
Figure 44. High Speed Low Voltage Comparator
C
F
V
in
2.0 V
R
F
V
in
+
V
O
5.0 k
5.0 k
5.0 k
t
MC34071
–
–
V
O
MC34071
2.0 k
V
O
+
10 k
10 k
10 k
V
CC
R
L
0.2 µs
Delay
1.0 V
4.0 V
0.1
Bit
Switches
13 V/µs
25 V/
µs
(R–2R) Ladder Network
Settling Time
t
Delay
1.0
1.0 µs (8–Bits, 1/2 LSB)
µ
s
Figure 45. LED Driver
Figure 46. Transistor Driver
V
CC
V
CC
“ON”
V
CC
V
< V
ref
in
R
L
+
+
+
V
in
MC34071
–
MC34071
–
MC34071
–
V
ref
R
L
“ON”
> V
(A) PNP
(B) NPN
V
in
ref
Figure 47. AC/DC Ground Current Monitor
Figure 48. Photovoltaic Cell Amplifier
I
Load
R
F
–
+
I
Cell
V
MC34071
O
MC34071
–
V
O
+
Ground Current
Sense Resistor
R
S
R1
R1
R2
V
= 0 V
R2
Cell
V
= I R
Load S
1+
O
V
V
= I R
Cell F
O
O
> 0.1 V
For V > 0.1V
O
R2
R1+R2
BW ( –3.0 dB) = GBW
13
MOTOROLA ANALOG IC DEVICE DATA
MOTOROLA [ MOTOROLA ]
