ADM485JR Analog Devices Inc, ADM485JR Datasheet - Page 4

• Manufacturer Part Number: ADM485JR
• Description: IC TX/RX SINGLE RS-485 5V 8SOIC
• Manufacturer: Analog Devices Inc
• Type: Transceiverr

Specifications of ADM485JR

• Rohs Status: RoHS non-compliant
• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)

ADM485
TIMING SPECIFICATIONS
V
Table 2.
Parameter
DRIVER
RECEIVER
1
Guaranteed by characterization.
CC
Propagation Delay Input to Output, t
Driver Output to OUTPUT, t
Driver Rise/Fall Time, t
Driver Enable to Output Valid
Driver Disable Timing
Matched Enable Switching |t
Matched Disable Switching |t
Propagation Delay Input to Output, t
Skew |t
Receiver Enable, t
Receiver Disable, t
Tx Pulse Width Distortion
Rx Pulse Width Distortion
= 5 V ± 5%, all specifications T
PLH
− t
PHL
|
ZH
HZ
, t
, t
ZL
LZ
R
, t
F
SKEW
ZH
HZ
− t
− t
MIN
ZL
LZ
|
|
PLH
PLH
to T
, t
, t
PHL
PHL
MAX
, unless otherwise noted.
Min
2
8
Rev. F | Page 4 of 16
Typ
10
1
8
10
10
0
0
15
5
5
1
1
Max
15
5
15
25
25
2
2
30
5
20
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Test Conditions/Comments
R
R
R
R
R
R
R
C
C
C
C
LDIFF
LDIFF
LDIFF
L
L
L
L
L
L
L
L
= 110 Ω, C
= 110 Ω, C
= 110 Ω, C
= 110 Ω, C
= 15 pF, see Figure 24
= 15 pF, see Figure 24
= 15 pF, R
= 15 pF, R
= 54 Ω, C
= 54 Ω, C
= 54 Ω, C
L
L
L
L
L
L
= 1 kΩ, see Figure 25
= 1 kΩ, see Figure 25
= 50 pF, see Figure 23
= 50 pF, see Figure 23
= 50 pF, see Figure 23
= 50 pF, see Figure 23
L1
L1
L1
= C
= C
= C
L2
L2
L2
= 100 pF, see Figure 22
= 100 pF, see Figure 22
= 100 pF, see Figure 22
1
1