ADM4850 to ADM4857 Data Sheet
Rev. F | Page 8 of 16
F
igure 5. ADM4850/ADM4852/ADM4853, 8-Lead LFCSP, Pin Configuration
Table 9. ADM4850/ADM4852/ADM4853, 8-Lead LFCSP, Pin Function Descriptions
Pin No. Mnemonic Description
1 RO Receiver Output. When RO is enabled and (A − B) ≥ −30 mV, RO is high. When RO is enabled and (A − B) ≤ −200 mV,
RO is low.
2
RE
Receiver Output Enable. A low level on
RE
enables the receiver output (RO). A high level on
RE
places RO into a high
impedance state.
3 DE Driver Output Enable. A high level on DE enables the driver differential outputs (A and B). A low level places the
driver differential outputs into a high impedance state.
4 DI Driver Input. When the driver is enabled, a logic low on DI forces A low and B high, whereas a logic high on DI
forces A high and B low.
5 GND Ground.
6 A Noninverting Receiver Input A/Noninverting Driver Output A.
7 B Inverting Receiver Input B/Inverting Driver Output B.
8 V
CC
5 V Power Supply.
EPAD Exposed Pad. The exposed paddle on the underside of the package must be soldered to the ground plane to
increase the reliability of the solder joints and to maximize the thermal capability of the package.
F
igure 6. ADM4854/ADM4855/ADM4856/ADM4857, 8-Lead SOIC, Pin Configuration
Table 10. ADM4854/ADM4855/ADM4856/ADM4857, 8-Lead SOIC, Pin Function Descriptions
Pin No. Mnemonic Description
1 V
CC
5 V Power Supply.
2 RO Receiver Output. When RO is enabled and (A − B) ≥ −30 mV, RO is high. When RO is enabled and (A − B) ≤ −200 mV,
RO is low.
3 DI
Driver Input. When the driver is enabled, a logic low on DI forces Y low and Z high, whereas a logic high on DI forces
Y high and Z low.
4 GND Ground.
5 Y Noninverting Driver Output.
6 Z Inverting Driver Output.
7 B Inverting Receiver Input.
8 A Noninverting Receiver Input.
04931-029
NOTES
1. THE EXPOSED PADDLE ON THE UNDERSIDE
OF THE PACKAGE SHOULD BE SOLDERED
TO THE GROUND PLANE TO INCREASE THE
RELIABILITY OF THE SOLDER JOINTS AND
TO MAXIMIZE THE THERMAL CAPABILITY OF
THE PACKAGE.
RO
RE
DE
DI
B
V
CC
ADM4850/ADM4852/ADM4853
A
GND
3
4
1
2
6
5
8
7
TOP VIEW
(Not to Scale)
V
CC
1
A
8
GND
4
Y
5
ADM4854/
ADM4855/
ADM4856/
ADM4857
TOP VIEW
(Not to Scale)
RO
2
B
7
DI
Z
63
04931-106
