ADM3491AR Analog Devices Inc, ADM3491AR Datasheet - Page 2

• Manufacturer Part Number: ADM3491AR
• Description: 3V FULL DUPLEX RS 485 I.C.
• Manufacturer: Analog Devices Inc
• Type: Transceiverr

Specifications of ADM3491AR

• Rohs Compliant: NO
• Rohs Status: RoHS non-compliant
• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (3.9mm Width), 14-SOL

ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagrams............................................................. 1
Revision History ............................................................................... 2
Specifications..................................................................................... 4
Absolute Maximum Ratings............................................................ 7
Pin Configurations and Function Descriptions ........................... 8
Test Circuits....................................................................................... 9
Switching Characteristics .............................................................. 11
REVISION HISTORY
12/10—Rev. C to Rev. D
Changes to Figure 33...................................................................... 15
8/10—Rev. B to Rev. C
Changes to Table 2, Driver Input Logic......................................... 4
10/06—Rev. A to Rev. B
Updated Format..................................................................Universal
Added ADM3491................................................................Universal
Changes to Specifications Section.................................................. 4
Changes to Typical Applications Section .................................... 14
7/06—Rev. 0 to Rev. A
Changes to Applications .................................................................. 1
Changes to General Description .................................................... 1
Changes to Figure 19...................................................................... 10
Changes to Typical Applications Section .................................... 13
Changes to Figure 31 and Figure 32............................................. 14
Updated Outline Dimensions ....................................................... 15
10/05—Revision 0: Initial Version
Timing Specifications—ADM3485/ADM3490/ADM3491.... 5
Timing Specifications—ADM3483/ADM3488........................ 5
Timing Specifications—ADM3483/ADM3485/ADM3488/
ADM3490/ADM3491 .................................................................. 6
ESD Caution.................................................................................. 7
Rev. D | Page 2 of 20
Typical Performance Characteristics ........................................... 12
Circuit Description......................................................................... 14
Outline Dimensions ....................................................................... 17
Devices with Receiver/Driver Enables—
ADM3483/ADM3485/ADM3491............................................ 14
Devices Without Receiver/Driver Enables—
ADM3488/ADM3490................................................................ 14
Reduced EMI and Reflections—ADM3483/ADM3488 ....... 14
Low Power Shutdown Mode..................................................... 14
Driver Output Protection.......................................................... 14
Propagation Delay ...................................................................... 14
Typical Applications................................................................... 14
Line Length vs. Data Rate ......................................................... 15
Ordering Guide .......................................................................... 18