Datasheet

MAX845
Isolated Transformer Driver
for PCMCIA Applications
8 _______________________________________________________________________________________
10µF
6N136
MAX845
D1
FS
D2
GND1 GND2
V
CC
4
2 7
8
1
SD
6
3
6N136
6N136
10µF
79L12
78L05
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
CONVST
V
DD
V
SS
CLOCK
DATA
AIN
VREF
GND
MAX176
3k
3k
470Ω
0.1µF 10µF
0.1µF
10µF
0.1µF
10µF
200Ω
200Ω
8.2k
74HC04
7
6
5
4
3
2
1
15
16
QH
QG
QF
QE
QD
QC
QB
QA
SER
SCK
RCK
SCLR
14
11
12
10
74HC595
13 8
5V
INPUT
0.1µF
D11(MSB)
D10
D9
D8
5V
INPUT
7
6
5
4
3
2
1
15
16
QH
QG
QF
QE
QD
QC
QB
QA
SER
SCK
RCK
SCLR
14
11
12
10
74HC595
13 8
5V
INPUT
0.1µF
D7
D6
D5
D4
D3
D2
D1
D0 (LSB)
5V
INPUT
74HC04
ON/OFF
START
INPUT CLOCK
1CT : 1.5CT : 3CT
4 x 1N5817
V
IN
5V INPUT
SIGNAL
GROUND
ANALOG
INPUT
ISO
5V
ISO
-12V
8
QH
′
ISOLATION
BARRIER
Figure 6. Typical Isolated Data-Conversion Application