Interface RS-485 and RS-422

The RS-485 specification meets the requirements for a truly multipoint communications network, and the standard specifies up to 32 drivers and 32 receivers on a single (2-wire) bus. Some RS-485 transceivers modify the input impedance to allow up to 8× more nodes to be connected to the same bus. Analog Devices offers a wide range of standard RS-485/RS-422 transceivers and iCoupler® isolated RS-485/RS-422 transceivers to suit many applications.
Product Selection Table

Interface RS-485 And RS-422

  Hold Shift Key for secondary sorting
SortOrderPart#Interface ProtocolData Rate
(max)
(bps)
Number RxNumber TxFull or Half Duplex OperationNumber of NodesDriver/ Receiver EnableESD Protection
(V)
Fail SafeVs+
(min)
(V)
Vs+
(max)
(V)
US Price 1000 to 4999
($ US)
1ADM3061E RS-485 500k 1 1 Half 128 Yes 30k Idle, Open, Short 3 5.5 $1.05
2ADM3066E RS-485 50M 1 1 Half 128 Yes 30k Idle, Open, Short 3 5.5 $1.23
3ADM3095E RS-485 2.5M 1 1 Half 256 Yes 30k Idle, Open, Short 3 5.5 $4.50
4ADM3065E RS-485 50M 1 1 Half 128 Yes 30k Idle, Open, Short 3 5.5 $1.21
5ADM489A RS-422, RS-485 250k 1 1 Full 32 Yes- Open 4.5 5.5 $1.08
6ADM488A RS-422, RS-485 250k 1 1 Full 32 No- Open 4.5 5.5 $0.93
7ADM1490E RS-422, RS-485 16M 1 1 Full 32 No 8k Open 4.75 5.25 $1.18
8ADM1491E RS-422, RS-485 16M 1 1 Full 32 Yes 8k Open 4.75 5.25 $1.18
9ADM487E RS-422, RS-485 250k 1 1 Half 128 Yes 15k Open 4.75 5.25 $1.36
10ADM485E RS-422, RS-485 2.5M 1 1 Half 32 Yes 15k Open 4.75 5.25 $0.98
11ADM1487E RS-422, RS-485 2.5M 1 1 Half 128 Yes 15k Open 4.75 5.25 $0.98
12ADM3491E RS-422, RS-485 12M 1 1 Full 32 Yes 15k Open 3 3.6 $1.46
13ADM3490E RS-422, RS-485 12M 1 1 Full 32 No 15k Open 3 3.6 $1.41
14ADM3488E RS-422, RS-485 250k 1 1 Full 32 No 15k Open 3 3.6 $1.36
15ADM3486E RS-422, RS-485 2.5M 1 1 Half 32 Yes 15k Open 3 3.6 $1.36
16ADM3483E RS-422, RS-485 250k 1 1 Half 32 Yes 15k Open 3 3.6 $1.36
17ADM3078E RS-422, RS-485 16M 1 1 Half 256 Yes 15k Idle, Open, Short 3 3.6 $1.60
18ADM3077E RS-422, RS-485 16M 1 1 Full 256 No 15k Idle, Open, Short 3 3.6 $1.62
19ADM3076E RS-422, RS-485 16M 1 1 Full 256 Yes 15k Idle, Open, Short 3 3.6 $1.67
20ADM3075E RS-422, RS-485 500k 1 1 Half 256 Yes 15k Idle, Open, Short 3 3.6 $1.57
21ADM3074E RS-422, RS-485 500k 1 1 Full 256 No 15k Idle, Open, Short 3 3.6 $1.62
22ADM3073E RS-422, RS-485 500k 1 1 Half 256 Yes 15k Idle, Open, Short 3 3.6 $1.67
23ADM3072E RS-422, RS-485 250k 1 1 Half 256 Yes 15k Idle, Open, Short 3 3.6 $1.57
24ADM3071E RS-422, RS-485 250k 1 1 Full 256 No 15k Idle, Open, Short 3 3.6 $1.62
25ADM3070E RS-422, RS-485 250k 1 1 Full 256 Yes 15k Idle, Open, Short 3 3.6 $1.67
26ADM3493 RS-422, RS-485 250k 1 1 Half 256 Yes- Open 3 3.6 $0.99
27ADM3490 RS-422, RS-485 10M 1 1 Full 32 No- Open 3 3.6 $1.04
28ADM3488 RS-422, RS-485 250k 1 1 Full 32 No- Open 3 3.6 $0.94
29ADM3485 RS-422, RS-485 10M 1 1 Half 32 Yes- Open 3 3.6 $1.04
30ADM3483Reference Circuit Available RS-422, RS-485 250k 1 1 Half 32 Yes- Open 3 3.6 $0.94
31ADM4857 RS-422, RS-485 10M 1 1 Full 256 No- Open, Short 4.75 5.25 $0.82
32ADM4856 RS-422, RS-485 2.5M 1 1 Full 256 No- Open, Short 4.75 5.25 $0.82
33ADM4855 RS-422, RS-485 500k 1 1 Full 256 No- Open, Short 4.75 5.25 $0.82
34ADM4854 RS-422, RS-485 115k 1 1 Full 256 No- Open, Short 4.75 5.25 $0.82
35ADM4853 RS-422, RS-485 10M 1 1 Half 256 Yes- Open, Short 4.75 5.25 $0.82
36ADM4852 RS-422, RS-485 2.5M 1 1 Half 256 Yes- Open, Short 4.75 5.25 $0.73
37ADM4851 RS-422, RS-485 500k 1 1 Half 256 Yes- Open, Short 4.75 5.25 $0.82
38ADM4850 RS-422, RS-485 115k 1 1 Half 256 Yes- Open, Short 4.75 5.25 $0.73
39ADM483 RS-422, RS-485 250k 1 1 Half 32 Yes- Open 4.75 5.25 $0.69
40ADM1486 RS-422, RS-485 30M 1 1 Half 50 Yes- Open 4.75 5.25 $1.20
41ADM3485EReference Circuit Available RS-422, RS-485 12M 1 1 Half 32 Yes 15k Open 3 3.6 $1.45
42ADM3491 RS-422, RS-485 10M 1 1 Full 32 Yes- Open 3 3.6 $1.51
43ADM489 RS-422, RS-485 250k 1 1 Full 32 Yes- Open 4.5 5.5 $1.78
44ADM488 RS-422, RS-485 250k 1 1 Full 32 No- Open 4.5 5.5 $1.34
45ADM483E RS-422, RS-485 250k 1 1 Half 32 Yes 15k Open 4.5 5.5 $1.40
46ADM485 RS-422, RS-485 5M 1 1 Half 32 Yes- Open 4.75 5.25 $0.90
47ADM1485 RS-422, RS-485 30M 1 1 Half 32 Yes- Open 4.75 5.25 $1.10