adum3440 Analog Devices, Inc., adum3440 Datasheet - Page 13

• Manufacturer Part Number: adum3440
• Description: Quad Channel, High Speed Digital Isolators
• Manufacturer: Analog Devices, Inc.

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 12. ADuM3440 Pin Function Descriptions
Pin No.
1
2, 8
3
4
5
6
7
9, 15
10
11
12
13
14
16
Mnemonic
V
GND
V
V
V
V
NC
GND
V
V
V
V
V
V
DD1
IA
IB
IC
ID
E2
OD
OC
OB
OA
DD2
1
2
Function
Supply Voltage for Isolator Side 1, 3.0 V to 5.5 V.
Ground 1. Ground reference for isolator Side 1.
Logic Input A.
Logic Input B.
Logic Input C.
Logic Input D.
No Connect.
Ground 2. Ground reference for isolator Side 2.
Output Enable 2. Active high logic input. V
disconnected. V
to an external logic high or low is recommended.
Logic Output D.
Logic Output C.
Logic Output B.
Logic Output A.
Supply Voltage for Isolator Side 2, 3.0 V to 5.5 V.
*PIN 2 AND PIN 8 ARE INTERNALLY CONNECTED AND CONNECTING BOTH TO
GND
CONNECTING BOTH TO GND
1
OA
IS RECOMMENDED. PIN 9 AND PIN 15 ARE INTERNALLY CONNECTED AND
, V
OB
, V
OC
, and V
GND
GND
Figure 5. ADuM3440 Pin Configuration
V
DD1
V
V
V
V
NC
1
IA
IB
IC
ID
1
*
*
OD
1
2
3
4
5
6
7
8
2
outputs are disabled when V
NC = NO CONNECT
IS RECOMMENDED.
Rev. 0 | Page 13 of 24
ADuM3440
(Not to Scale)
TOP VIEW
OA
, V
OB
, V
16
15
14
13
12
11
10
9
OC
V
GND
V
V
V
V
V
GND
, and V
DD2
OA
OB
OC
OD
E2
2
2
*
*
OD
ADuM3440/ADuM3441/ADuM3442
outputs are enabled when V
E2
is low. In noisy environments, connecting V
E2
is high or
E2