ML2281, ML2282, ML2284, ML2288
APPLICATIONS (Continued)
100kΩ = 50kHZ
4mA–20mA
1N4148
1/6 74HC14
+
100Ω
1000pF
10µF
INP
V
CC
24kΩ
6.2kΩ
200kΩ
CD4024
V
CC
V
5
O
CLK
CS
+IN
47µF
10kΩ
50pF
100kΩ
ML2281
–IN
V
LM385–2.5V
LM385–2.5V
6N139
OPTO COUPLER
10kΩ
3
5
2
V
DO
CC
5kΩ
REF
GND
3.9kΩ
6
8
V+
300kΩ
47kΩ
V
O
GND
• ALL POWER SUPPLIED BY LOOP
• 1500V ISOLATION AT OUTPUT
4mA–20mA Current Loop Converter
TRANSFORMER
1N4148
TRW-TC-SSD-32
V
OUT
CC
3
+
100µF
47kΩ
5
1
10kΩ
1N4148
7
2
CLK
2N2222
6V
6V
V
CC
6
100kΩ
CLK
470Ω
CS
V
CC
V
V
CC
4N28
4N28
100kΩ
ML2288
6V
10kΩ
10kΩ
470Ω
8 ANALOG
CHANNELS
D1
CS
DI
2N2222
CC
DO
6.8kΩ
2N2222
8
2
3
6
5
• NO POWER REQUIRED REMOTELY
• 1500V ISOLATION
6N139 HIGH GAIN
OPTOCOUPLER
Isolated Data Converter
21
MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
