MB4053 Fujitsu Microelectronics, Inc., MB4053 Datasheet - Page 8

• Manufacturer Part Number: MB4053
• Description: 6-channel 8-bit A/D Converter
• Manufacturer: Fujitsu Microelectronics, Inc.

8
MB4053
DIAGRAM
CHANNEL SELECTION
MEASURMENT CIRCUIT
Note: Adjust R
A
0
0
0
0
1
1
1
1
2
A
RAMP START Input
C
RAMP STOP Output
Input address line
0
H
to A
Voltage
2
Input
A
0
0
1
1
0
0
1
1
REF
1
in the range 40 to 200 k
A
0
1
0
1
0
1
0
1
0
t
A
A
A
1
1
t
SL
Selected analog input
A
I
1
2
so that I
4.75 V
START
V
RAMP
CC
GND
V
t
I
I
I
I
I
I
REF
O
1
2
3
4
5
6
C
t
I
C
R
2
H
C
is 12 to 50 A.
H
GND
t
I
R
3
4.75 V
R
I
4
REF
I
R
RAMP
4.75 V
STOP
Slope = –
I
5
20 k
V
REF
I
6
2.75 V
C
I
R
H
V
V
V
V
V
V
V
V
0 V
IH
IL
IH
IL
IN
BE2
OH
OL
+ V
BE1