MAX12930 Datasheet, PDF (15/20 Pages) Maxim Integrated Products – Two-Channel Digital Isolators

MAX12930/MAX12931
Two-Channel Digital Isolators
Pin Description
MAX12930
8-pin SOIC
PIN
MAX12931
8-pin SOIC
1
1
2
—
-
2
3
3
4
4
5
5
6
6
7
—
—
7
8
8
—
—
MAX12931
16-pin SOIC
3
—
4
5
1, 7
9, 16
12
—
13
14
2,6,8,10,11,15
NAME
FUNCTION
REFERENCE
V_DDA
IN1
OUT1
IN2
GNDA
GNDB
OUT2
OUT1
IN1
V_DDB
N.C.
Power Supply for side A. Bypass V_DDA with
a 0.1µF ceramic capacitor to GNDA.
Logic input for channel 1
Logic output of channel 1
Logic input for channel 2
Ground reference for side A
Ground reference for side B
Logic output of channel 2
Logic output of channel 1
Logic input for channel 1
Power Supply for side B. Bypass V_DDB with
a 0.1µF ceramic capacitor to GNDB.
Not internally connected
GNDA
GNDA
GNDA
GNDA
—
—
GNDB
GNDB
GNDB
GNDB
—
Typical Operating Circuit
2.5V
0.1µF
MICRO
CONTROLLER
VDD
RX
VDDA
OUT1
TX
IN2
GND
GNDA
3.3V
0.1µF
MAX12931
VDDB
IN1
TRANSCEIVER
VDD
A
RXD
B
Y
OUT2
TXD
Z
GNDB
GND
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