LTC1685CS8#PBF Linear Technology, LTC1685CS8#PBF Datasheet - Page 12

• Manufacturer Part Number: LTC1685CS8#PBF
• Description: IC TXRX RS485 PREC DELAY 8-SOIC
• Manufacturer: Linear Technology
• Type: Transceiverr

Specifications of LTC1685CS8#PBF

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PACKAGE
RELATED PARTS
APPLICATIONS
LTC1685
parasitic board capacitance. This maintains the good
matching characteristics of the low-to-high and high-to-
low transitions of the LTC1685. Note that output “A” to
output “B” capacitance should also be minimized. If routed
adjacent to each other on the same layer, they should be
separated by an amount at least as wide as the trace
widths. If output “A” and output “B” are routed on different
signal planes, they should not be routed directly on top of
PART NUMBER
LTC1485
LTC1518/LTC1519
LTC1520
LTC1686/LTC1687
LTC1688/LTC1689
12
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
[phone] FAX: [phone] www.linear-tech.com
(0.203 – 0.254)
**
0.008 – 0.010
*
DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH
SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE
DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD
FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE
DESCRIPTION
DESCRIPTION
High Speed RS485 Transceiver
High Speed Quad RS485 Receivers
High Speed Quad Differential Receiver
High Speed RS485 Driver/Receiver
High Speed Quad RS485 Drivers
U
(0.254 – 0.508)
0.010 – 0.020
INFORMATION
U
0.016 – 0.050
0.406 – 1.270
45
W
U
8-Lead Plastic Small Outline (Narrow 0.150)
Dimensions in inches (millimeters) unless otherwise noted.
0 – 8 TYP
U
(LTC DWG # 05-08-1610)
S8 Package
(5.791 – 6.197)
0.228 – 0.244
each other. A trace width’s lateral separation is also
recommended.
As mentioned before, care should also be taken when
routing the “DI” input. To achieve consistent board-to-
board propagation delay, the ringing on this signal should
be kept below a few hundred millivolts.
(1.346 – 1.752)
0.053 – 0.069
COMMENTS
10Mbps, Pin Compatible with LTC485
52Mbps, Pin Compatible with LTC488/LTC489
52Mbps, 100mV Threshold, Rail-to-Rail Common Mode
52Mbps, Pin Compatible with LTC490/LTC491
100Mbps, Pin Compatible with LTC486/LTC487
(0.355 – 0.483)
0.014 – 0.019
8
1
(4.801 – 5.004)
0.189 – 0.197*
2
7
1685fa LT/LCG 0700 2K REV A • PRINTED IN THE USA
6
3
5
4
LINEAR TECHNOLOGY CORPORATION 1997
(1.270)
0.050
BSC
(3.810 – 3.988)
0.150 – 0.157**
(0.101 – 0.254)
0.004 – 0.010
SO8 0695