LTC2852 - 3.3V 20Mbps RS485/RS422 Transceiver _ BDTIC a Leading Distributor in China

LTC2852 - 3.3V 20Mbps RS485/RS422 Transceiver

The LTC2850, LTC2851 and LTC2852 are low power, 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.

Features

3.3V Supply Voltage
20Mbps Maximum Data Rate
No Damage or Latchup Up to ±15kV HBM
High Input Impedance Supports 256 Nodes (C, I‑Grade)
Operation Up to 125°C (H-Grade)
Guaranteed Failsafe Receiver Operation Over the Entire Common Mode Range
Current Limited Drivers and Thermal Shutdown
Delayed Micropower Shutdown: 5μA Maximum (C, I-Grade)
Power Up/Down Glitch-Free Driver Outputs
Low Operating Current: 370μA Typical in Receive Mode
Compatible with TIA/EIA-485-A Specifications
Available in 8-Pin and 10-Pin 3mm × 3mm DFN, 8-Pin and 10-Pin MSOP, and 8-Pin and 14-Pin SO Packages

Typical Application

Applications

Low Power RS485/RS422 Transceiver
Level Translator
Backplane Transceiver

Packaging

**Order Information**
Part Number	Package	Temp	Price(1-99)	Price (1k)*
LTC2852CDD#PBF	3x3 DFN-10	C	$2.21	$1.55
LTC2852CDD#TRPBF	3x3 DFN-10	C		$1.61
LTC2852CMS#PBF	MS-10	C	$2.21	$1.55
LTC2852CMS#TRPBF	MS-10	C		$1.61
LTC2852CS#PBF	SO-14	C	$2.21	$1.55
LTC2852CS#TRPBF	SO-14	C		$1.61
LTC2852HDD#PBF	3x3 DFN-10	H	$3.00	$2.05
LTC2852HDD#TRPBF	3x3 DFN-10	H		$2.11
LTC2852HMS#PBF	MS-10	H	$3.00	$2.05
LTC2852HMS#TRPBF	MS-10	H		$2.11
LTC2852HS#PBF	SO-14	H	$3.00	$2.05
LTC2852HS#TRPBF	SO-14	H		$2.11
LTC2852IDD#PBF	3x3 DFN-10	I	$2.64	$1.86
LTC2852IDD#TRPBF	3x3 DFN-10	I		$1.92
LTC2852IMS#PBF	MS-10	I	$2.64	$1.86
LTC2852IMS#TRPBF	MS-10	I		$1.92
LTC2852IS#PBF	SO-14	I	$2.64	$1.86
LTC2852IS#TRPBF	SO-14	I		$1.92
LTC2852MPDD	3x3 DFN-10	MP	$6.64	$4.65
LTC2852MPDD#PBF	3x3 DFN-10	MP	$6.64	$4.65
LTC2852MPDD#TRPBF	3x3 DFN-10	MP		$4.71
LTC2852MPMS	MS-10	MP	$6.64	$4.65
LTC2852MPMS#PBF	MS-10	MP	$6.64	$4.65
LTC2852MPMS#TRPBF	MS-10	MP		$4.71
LTC2852MPS	SO-14	MP	$6.64	$4.65
LTC2852MPS#PBF	SO-14	MP	$6.64	$4.65
LTC2852MPS#TRPBF	SO-14	MP		$4.71