Information

Texas Instruments Signal Chain Guide 2013 | 129
Interface
Industrial – RS-485/RS-422
3.3 V-Supply RS-485 with IEC ESD Protection
SN65HVD72/75/78
These devices have robust 3.3 V drivers and receivers in a small package for demand-
ing industrial applications. The bus pins are robust to ESD events, with high levels of
pr
otection to Human-Body Model and IEC Contact Discharge specifications.
These devices each combine a differential driver and a differential receiver, which
operate from a single 3.3-V power supply. The driver differential outputs and the receiv-
er differential inputs are connected internally to form a bus port suitable for half-duplex
(two-wir
e bus) communication. These devices all feature a wide common-mode voltage
range making the devices suitable for multi-point applications over long cable runs.
These devices are characterized from –40°C to 125°C.
Logic diagram
Key Features
• Small-sizeMSOPpackagessave
board space, or SOIC for drop-in
compatibility
•
BusI/Oprotection
• Extendedindustrialtemperaturerange:
–40°C to 125°C
•
Largereceiverhysteresis(80mV)for
noise rejection
•
Lowunit-loadingallowsover200
connected nodes
•
Lowpowerconsumption
• 5V-tolerantlogicinputscompatible
with 3.3-V or 5-V controllers
•
Signalingrateoptionsoptimizedfor:
250 kbps, 20 Mbps, 50 Mbps
•
AvailableinSOIC(D),MSOP(DGK)and
SON (DRB) packages
Applications
• Factoryautomation
• Telecomminfrastructure
• Motioncontrol
6
7
A
B
3
4
2
1
DE
D
RE
R
Get more information: www.ti.com/product/Part Number
(SN65HVD72, SN65HVD75, SN65HVD78)
*Suggested resale price in U.S. dollars in quantities of 1,000. See www.ti.com/hirel for HiRel options. Preview products are listed in bold blue. New products are listed in bold red.
RS-485
Device
DR/
RX Duplex
Supply
(V) Features Isolated
Signaling
Rate (Mbps)
ESD
(kV)
Receiver
Fail-Safe Nodes Package
HiRel
Avail. Price*
SN65HVD10/11/12 1/1 Half 3.3 High/Mid/Low Speed No 32, 10, 1 16 Short, Open, Idle 256 PDIP-8, SOIC-8 Y 1.50/1.40/1.40
SN65HVD72/75/78 1/1 Half 3.3 IEC ESD Protection No 0.25, 20, 50 15 Short, Open, Idle >200
SOIC-8, MSOP-8,
SON-8
N 0.70/0.85/1.00
SN65HVD01 1/1 Half 3.3
Flexible I/O Supply (1.8-3.
3 V) and Selectable Speed
No 0.25 or 20 16 Short,
Open, Idle 256 QFN-10 N TBD
SN65HVD30/31/32 1/1 Full 3.3 No Enables No 26, 5, 1 16 Short, Open, Idle 256 SOIC-8 Y 1.60/1.50/1.45
SN65HVD33/34/35 1/1 Full 3.3 With Enables No 26, 5, 1 16 Short, Open, Idle 256
SOIC-14,
QFN-20
Y 1.60/1.50/1.45
SN65HVD37 1/1 Full 3.3
High Signaling Rate, Low
Power, High Hysteresis
No 20 16 Short, Open, Idle 256 SOIC-14 N 1.75
ISO15 1/1 Half 3.3
Isolated 3.3 V Half-Duplex
Transceiver
Yes 1 16 Short, Open, Idle 256 SOIC-16 N 3.00
ISO35 1/1 Full 3.3
Isolated 3.3 V Full-Duplex
Transceiver
Yes 1 16 Short, Open, Idle 256 SOIC-16 N 3.00
ISO35T 1/1 Full 3.3
Isolated 3.3 V Transceiver
with Transformer Driver
Yes 1 16 Short, Open, Idle 256 SOIC-16 N 3.25
SN65HVD08 1/1 Half 3 to 5.5
Wide Supply Range: 3 V to
5.5 V
No 10 16 Short, Open, Idle 256 PDIP-8, SOIC-8 N 1.65
SN65HVD1780/1/2 1/1 Half 3.3 to 5
Up to ±70 V Protected, Wide
Supply Range: 3.3 V to 5 V
No 0.115, 1, 10 16 Short, Open, Idle 320 PDIP-8, SOIC-8 N 1.85/1.85/2.00
DS485 1/1 Half 5
Low-Power RS-485/RS-422
Multipoint Transceiver
No 2.5 2 Short, Open, Idle 32 PDIP-8, SOIC-8 N 0.79