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)
1ADM3095E RS-485 2.5M 1 1 Half 256 Yes 15k Idle, Open, Short 3 5.5 $4.50
2ADM3065E RS-485 50M 1 1 Half 128 Yes 12k Idle, Open, Short 3 5.5 $1.21
3ADM489A RS-422, RS-485 250k 1 1 Full 32 Yes- Open, Short 4.5 5.5 $1.08
4ADM488A RS-422, RS-485 250k 1 1 Full 32 No- Open, Short 4.5 5.5 $0.93
5ADM1490E RS-422, RS-485 16M 1 1 Full 32 No 8k Open, Short 4.75 5.25 $1.18
6ADM1491E RS-422, RS-485 16M 1 1 Full 32 Yes 8k Open 4.75 5.25 $1.18
7ADM487E RS-422, RS-485 250k 1 1 Half 128 Yes 15k Open 4.75 5.25 $1.36
8ADM485E RS-422, RS-485 2.5M 1 1 Half 32 Yes 15k Open 4.75 5.25 $0.98
9ADM1487E RS-422, RS-485 2.5M 1 1 Half 128 Yes 15k Open 4.75 5.25 $0.98
10ADM3491E RS-422, RS-485 12M 1 1 Full 32 Yes 15k Open 3 3.6 $1.46
11ADM3490E RS-422, RS-485 12M 1 1 Full 32 No 15k Open 3 3.6 $1.41
12ADM3488E RS-422, RS-485 250k 1 1 Full 32 No 15k Open 3 3.6 $1.36
13ADM3486E RS-422, RS-485 2.5M 1 1 Half 32 Yes 15k Open 3 3.6 $1.36
14ADM3483E RS-422, RS-485 250k 1 1 Half 32 Yes 15k Open 3 3.6 $1.36
15ADM3078E RS-422, RS-485 16M 1 1 Half 256 Yes 15k Idle, Open, Short 3 3.6 $1.60
16ADM3077E RS-422, RS-485 16M 1 1 Full 256 No 15k Idle, Open, Short 3 3.6 $1.62
17ADM3076E RS-422, RS-485 16M 1 1 Full 256 Yes 15k Idle, Open, Short 3 3.6 $1.67
18ADM3075E RS-422, RS-485 500k 1 1 Half 256 Yes 15k Idle, Open, Short 3 3.6 $1.57
19ADM3074E RS-422, RS-485 500k 1 1 Full 256 No 15k Idle, Open, Short 3 3.6 $1.62
20ADM3073E RS-422, RS-485 500k 1 1 Half 256 Yes 15k Idle, Open, Short 3 3.6 $1.67
21ADM3072E RS-422, RS-485 250k 1 1 Half 256 Yes 15k Idle, Open, Short 3 3.6 $1.57
22ADM3071E RS-422, RS-485 250k 1 1 Full 256 No 15k Idle, Open, Short 3 3.6 $1.62
23ADM3070E RS-422, RS-485 250k 1 1 Full 256 Yes 15k Idle, Open, Short 3 3.6 $1.67
24ADM3493 RS-422, RS-485 250k 1 1 Half 256 Yes- Open 3 3.6 $0.99
25ADM3490 RS-422, RS-485 10M 1 1 Full 32 No- Open 3 3.6 $1.04
26ADM3488 RS-422, RS-485 250k 1 1 Full 32 No- Open 3 3.6 $0.94
27ADM3485 RS-422, RS-485 10M 1 1 Half 32 Yes- Open 3 3.6 $1.04
28ADM3483Reference Circuit Available RS-422, RS-485 250k 1 1 Half 32 Yes- Open 3 3.6 $0.94
29ADM4857 RS-422, RS-485 10M 1 1 Full 256 No- Open, Short 4.75 5.25 $0.82
30ADM4856 RS-422, RS-485 2.5M 1 1 Full 256 No- Open, Short 4.75 5.25 $0.82
31ADM4855 RS-422, RS-485 500k 1 1 Full 256 No- Open, Short 4.75 5.25 $0.82
32ADM4854 RS-422, RS-485 115k 1 1 Full 256 No- Open, Short 4.75 5.25 $0.82
33ADM4853 RS-422, RS-485 10M 1 1 Half 256 Yes- Open, Short 4.75 5.25 $0.82
34ADM4852 RS-422, RS-485 2.5M 1 1 Half 256 Yes- Open, Short 4.75 5.25 $0.73
35ADM4851 RS-422, RS-485 500k 1 1 Half 256 Yes- Open, Short 4.75 5.25 $0.82
36ADM4850 RS-422, RS-485 115k 1 1 Half 256 Yes- Open, Short 4.75 5.25 $0.73
37ADM483 RS-422, RS-485 250k 1 1 Half 32 Yes- Open 4.75 5.25 $0.69
38ADM1486 RS-422, RS-485 30M 1 1 Half 50 Yes- Open 4.75 5.25 $1.20
39ADM3485EReference Circuit Available RS-422, RS-485 12M 1 1 Half 32 Yes 15k Open 3 3.6 $1.45
40ADM3491 RS-422, RS-485 10M 1 1 Full 32 Yes- Open 3 3.6 $1.51
41ADM489 RS-422, RS-485 250k 1 1 Full 32 Yes- Open 4.5 5.5 $1.78
42ADM488 RS-422, RS-485 250k 1 1 Full 32 No- Open 4.5 5.5 $1.34
43ADM483E RS-422, RS-485 250k 1 1 Half 32 Yes 15k Open 4.5 5.5 $1.40
44ADM485 RS-422, RS-485 5M 1 1 Half 32 Yes- Open 4.75 5.25 $0.90
45ADM1485 RS-422, RS-485 30M 1 1 Half 32 Yes- Open 4.75 5.25 $1.10

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