M62301 Mitsubishi, M62301 Datasheet - Page 4

• Manufacturer Part Number: M62301
• Description: 10~12-BIT 4CH INTEGRATING A-D CONVERTER
• Manufacturer: Mitsubishi

Multiplexer first selects V
T
T
obtained by deducting T
T
By measuring voltage at the maximum input for
approximately 500µs under the counter clock of
8MHz,resolution of approximately 12bits can be obtained;
GND
REF
IN
OPERATING DESCRIPTION
(1)Decoder
.
(2)A-D conversion
Based on digital inputs to C0,C1,C2,the analog switch
is set to on,and the input of "0" scale (GND input),input
of reference scale (reference voltage input),input to
A1~A4,or discharge
.Input is selected next,obtaining input pulse T
.It then selects V
DECODER SELECTION MODE
500µs
125ns
Mode
V
C0
C1
C2
IN
V 8
=V
REF
.
= . 2
12
•
REF
T
T
V
Discharge
GND
REF
V
IN
REF
GND
,obtaining reference pulse
IN
-T
+0.49V
+0.49V
-T
,as the offset,from T
1
0
0
0
0.49V
0.36V
G
,obtaining minimum pulse
G
1
GND
2
0
1
0
T
GND
2
REF
IN
V
.V
and
REF
0
1
3
0
IN
1
is
10~12-BIT 4CH INTEGRATING A-D CONVERTER
MITSUBISHI
ELECTRIC
Note. To ensure discharge from capacitor C
from integration capacitor (C
is performed when the "mode 8" input is given:
T
REF
3
A1
1
0
4
1
It is not necessary to measure T
channel.
the above diagram should stay in mode 1 at least for the
period calculated above: Tdi=(C
1
A2
0
1
0
5
MITSUBISHI<Dig.Ana.INTERFACE>
M62301SP,FP
I
) is performed.None of these operations
A3
6
1
0
1
4 ~ 7
T
IN
I
GND
X
V
,and T
A4
0
1
1
7
IA
I
,the decoder input as in
max+0.49
1mA
(
REF
4
1
for each
/ 9 )
1
1
1
8
)