LTC2850/LTC2851/LTC2852

1

285012fc

TYPICAL APPLICATION

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

FEATURES

APPLICATIONS

DESCRIPTION

3.3V 20Mbps RS485/RS422

Transceivers

20Mbps RS485/RS422 transceivers operating on 3.3V

supplies. The receiver has a one-eighth unit load supporting

up to 256 nodes per bus (C, I-Grade), and a failsafe feature

that guarantees a high output state under conditions of

floating or shorted inputs.

The driver maintains a high output impedance over the

entire common mode range when disabled or when the

supply is removed. Excessive power dissipation caused by

bus contention or a fault is prevented by current limiting

all outputs and by thermal shutdown.

Enhanced ESD protection allows these parts to withstand

up to ±15kV (human body model) on the transceiver

interface pins without latchup or damage.

LTC2850 at 20Mbps Into 54Ω

(C, I-Grade)

Entire Common Mode Range

(C, I-Grade)

Mode

× 3mm DFN,

8-Pin and 10-Pin MSOP, and 8-Pin and 14-Pin SO

Packages

GND1

R

RO1

RE1

DE1

DI1

D

LTC2850

LTC2850

285012 TA01a

GND2

R

RO2

RE2

DE2

DI2

D

PART NUMBER

DUPLEX

PACKAGE

LTC2850

Half

SO-8, MSOP-8, DFN-8

LTC2851

Full

SO-8, MSOP-8, DFN-8

LTC2852

Full

SO-14, MSOP-10, DFN-10

20ns/DIV

2V/DIV

285012 TA01b

DI

A

B

A-B