ADM3483/ADM3485/ADM3488/ADM3490
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
RO
1
RE
2
DE
3
DI
4
8
7
6
5
Preliminary Technical Data
ADM3483
ADM3485
TOP VIEW
(Not to Scale)
V
CC
B
A
GND
V
CC 1
RO
2
DI
3
GND
4
ADM3488
ADM3490
TOP VIEW
(Not to Scale)
8
7
6
5
A
B
Z
Y
Table 3. ADM3483/ADM3485 Pin Descriptions
Pin No.
1
2
Mnemonic
RO
RE
Description
Receiver Output. When enabled, if A > B by 200 mV, then RO = high.
If A < B by 200 mV, then RO = low.
Receiver Output Enable.
A low level enables the receiver output, RO.
A high level places it in a high impedance state.
Driver Output Enable. A high level enables the driver differential inputs A and B.
A low level places it in a high impedance state.
Driver Input. When the driver is enabled, a logic low on DI forces A low and B high
while a logic high on DI forces A high and B low.
Ground.
Noninverting Receiver Input A/Driver Output A.
Inverting Receiver Input B/Driver Output B.
5 V Power Supply.
3
4
5
6
7
8
DE
DI
GND
A
B
V
CC
Table 4. ADM34884/ADM3490 Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
Mnemonic
V
CC
RO
DI
GND
Y
Z
B
A
Description
5 V Power Supply.
Receiver Output. When enabled, if A > B by 200 mV, then RO = high.
If A < B by 200 mV, then RO = low.
Driver Input. When the driver is enabled, a logic low on DI forces A low and B high
while a logic high on DI forces A high and B low.
Ground.
Driver Noninverting Output.
Driver Inverting Output.
Receiver Inverting Input.
Receiver Noninverting Input.
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the
human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev.PrD | Page 6 of 14
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