ADM3488EARZ Analog Devices Inc, ADM3488EARZ Datasheet
ADM3488EARZ
Specifications of ADM3488EARZ
Available stocks
Related parts for ADM3488EARZ
ADM3488EARZ Summary of contents
Page 1
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E FEATURES TIA/EIA RS-485/RS-422 compliant ±15 kV ESD protection on RS-485 input/output pins Data rates ADM3483E/ADM3488E: 250 kbps ADM3486E: 2.5 Mbps ADM3490E/ADM3491E: 12 Mbps Half- and full-duplex options nodes on the bus Receiver open-circuit, fail-safe design Low ...
Page 2
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 General Description ......................................................................... 1 Functional Block Diagrams............................................................. 1 Revision History ............................................................................... 2 Specifications..................................................................................... 4 Driver Timing Specifications...................................................... 5 Receiver Timing Specifications .................................................. 6 Absolute Maximum Ratings............................................................ 7 ESD Caution.................................................................................. 7 Pin ...
Page 3
GENERAL DESCRIPTION (continued from Page 1) The driver outputs of the ADM3483E/ADM3486E/ ADM3488E are slew rate limited, in order to reduce EMI and data errors caused by reflections from improperly terminated buses. The receiver has a fail-safe feature that ensures ...
Page 4
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E SPECIFICATIONS V = 3.3 V ± 0 unless otherwise noted MIN MAX Table 2. ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E Parameter DRIVER Differential Outputs Differential Output Voltage Δ|V | for Complementary Output States OD Common-Mode ...
Page 5
DRIVER TIMING SPECIFICATIONS 25° Table 3. ADM3483E/ADM3488E Parameter MAXIMUM DATA RATE DIFFERENTIAL OUTPUT DELAY DIFFERENTIAL OUTPUT TRANSITION TIME PROPAGATION DELAY From Low to High Level From High to Low Level 1 |t ...
Page 6
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E 25° Table 5. ADM3490E/ADM3491E Parameter MAXIMUM DATA RATE DIFFERENTIAL OUTPUT DELAY DIFFERENTIAL OUTPUT TRANSITION TIME PROPAGATION DELAY From Low to High Level From High to Low Level 1 |t − t ...
Page 7
ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 7. Parameter V to GND CC Digital Input/Output Voltage (DE, RE, DI) Receiver Output Voltage (RO) Driver Output ( Z)/Receiver Input (A, B) Voltage Driver Output Current ...
Page 8
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS ADM3483E/ CC ADM3486E TOP VIEW 6 (Not to Scale) DI GND 4 5 Figure 4. ADM3483E/ADM3486E Pin Configuration Table 8. Pin Function Descriptions ...
Page 9
TEST CIRCUITS AND SWITCHING CHARACTERISTICS Figure 7. Driver Differential Output Voltage and Common-Mode Output Voltage 375Ω 375Ω Figure 8. Driver Differential ...
Page 10
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E 50pF L 1 GENERATOR 50Ω PPR = 250kHz, 50% DUTY CYCLE, ≤ 6.0ns INCLUDES PROBE AND STRAY CAPACITANCE 1.5V 1.5V t PSL OUT V ...
Page 11
TYPICAL PERFORMANCE CHARACTERISTICS 0.5 1.0 1.5 2.0 OUTPUT LOW VOLTAGE (V) Figure 16. Output Current vs. Receiver Output Low Voltage –18 –16 –14 –12 –10 –8 –6 –4 – 0.5 1.0 ...
Page 12
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E 120 100 OUTPUT LOW VOLTAGE (V) Figure 22. Output Current vs. Driver Output Low Voltage 120 100 –7 –6 –5 –4 –3 –2 –1 OUTPUT ...
Page 13
CH1 500mV Ω CH2 500mV Ω M2.0µs 25.0MS/s CH3 5.0V Ω A CH3 2.4V Figure 28. ADM3483E/ADM3488E Driver Propagation Delay ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E 1 M 40.0ns/pt CH1 2.00V MATH 2.00V 20.0ms Figure 29. ADM3483E/ADM3488E Receiver Propagation Delay Rev. ...
Page 14
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E CIRCUIT DESCRIPTION The ADM34xxE are low power transceivers for RS-485 and RS422 communications. The ADM3483E/ADM3488E operate at data rates up to 250 kbps. The ADM3486E operates at data rates up to 2.5 Mbps, and the ADM3490E/ADM3491E transmit at up ...
Page 15
ESD PROTECTION Two coupling methods are used for ESD testing: con- tact discharge and air-gap discharge. Contact discharge calls for a direct connection to the unit being tested. Air- gap discharge uses a higher test voltage but does ...
Page 16
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E ADM3483E/ ADM3486E ADM3483E/ ADM3486E NOTES 1. MAXIMUM NUMBER OF TRANSCEIVERS ON BUS: 32 EQUAL TO THE CHARACTERISTIC IMPEDANCE OF THE CABLE USED Figure ...
Page 17
MASTER ADM3491E SLAVE R ADM3491E RO NOTES 1. MAXIMUM NUMBER OF NODES: 32 EQUAL TO THE CHARACTERISTIC IMPEDANCE OF THE CABLE USED. T ...
Page 18
... ADM3483EARZ-REEL7 –40°C to +85°C 1 ADM3486EARZ –40°C to +85°C ADM3486EARZ-REEL7 1 –40°C to +85°C 1 ADM3488EARZ –40°C to +85°C ADM3488EARZ-REEL7 1 –40°C to +85°C 1 ADM3490EARZ –40°C to +85°C ADM3490EARZ-REEL7 1 –40°C to +85°C 1 ADM3491EARZ –40°C to +85°C 1 ADM3491EARZ-REEL7 – ...
Page 19
NOTES ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E Rev Page ...
Page 20
ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06284-0-10/06(A) Rev Page ...