MAX1483CUA+T Maxim Integrated Products, MAX1483CUA+T Datasheet

IC TXRX RS485/RS422 LP 8-UMAX

MAX1483CUA+T

Manufacturer Part Number
MAX1483CUA+T
Description
IC TXRX RS485/RS422 LP 8-UMAX
Manufacturer
Maxim Integrated Products
Type
Transceiverr
Datasheet

Specifications of MAX1483CUA+T

Number Of Drivers/receivers
1/1
Protocol
RS422, RS485
Voltage - Supply
4.75 V ~ 5.25 V
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX1482 and MAX1483 are low-power trans-
ceivers for RS-485 and RS-422 communication. Both
feature slew-rate-limited drivers that minimize EMI and
reduce reflections caused by improperly terminated
cables. Data rates are guaranteed up to 250kbps.
The MAX1482/MAX1483 draw only 20µA of supply cur-
rent. Additionally, they have a low-current shutdown
mode that consumes only 0.1µA. Both parts operate
from a single +5V supply.
Drivers are short-circuit current limited and are protect-
ed against excessive power dissipation by thermal
shutdown circuitry that places the driver outputs into a
high-impedance state. The receiver input has a fail-safe
feature that guarantees a logic-high output if the input
is open circuit.
The MAX1482 is full duplex and the MAX1483 is half
duplex. Both parts have a
that guarantees up to 256 transceivers on the bus.
________________________Applications
19-0367; Rev 1; 5/06
µMAX is a registered trademark of Maxim Integrated products, Inc.
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
_________Typical Operating Circuits
_______________General Description
NOTE: PIN LABELS Y AND Z ON TIMING, TEST, AND WAVEFORM
RO
DE
RE
DI
MAX1482 appears at end of data sheet.
1
2
3
4
DIAGRAMS REFER TO PINS A AND B WHEN DE IS HIGH.
TYPICAL OPERATING CIRCUIT SHOWN WITH DIP/SO PACKAGE.
Low-Power RS-485/RS-422 Networks
Transceivers for EMI-Sensitive Applications
Industrial-Control Local Area Networks
Large 256-Node LANs
D
R
7
6
________________________________________________________________ Maxim Integrated Products
8
5
B
A
+5V
Rt
V
20µA,
GND
CC
1
MAX1483
8
-unit-load input impedance
Rt
1
B
A
8
-Unit-Load, Slew-Rate-Limited
R
D
RE
DE
DI
RO
♦ Low 20µA Operating Current
♦ Slew-Rate Limited for Reduced EMI and
♦ 0.1µA Low-Current Shutdown Mode
♦ Designed for RS-485 and RS-422 Applications
♦ Operate from a Single +5V Supply
♦ -7V to +12V Common-Mode Input Voltage Range
♦ Allows up to 256 Transceivers on the Bus—
♦ Current Limiting and Thermal Shutdown for
____________________________Features
_________________Pin Configurations
MAX1482CPD
MAX1482CSD
MAX1482EPD
MAX1482ESD
MAX1483CPA
MAX1483CSA
MAX1483CUA
MAX1483EPA
MAX1483ESA
Reduced Reflections
Guaranteed (
Driver Overload Protection
MAX1482 appears at end of data sheet.
PART
RS-485 Transceivers
TOP VIEW
V
1
RO
RO
RE
DE
CC
RE
DI
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
TEMP RANGE
B
8
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-unit load)
1
2
3
4
1
2
3
4
Ordering Information
D
MAX1483
DIP/SO
R
MAX
PIN-PACKAGE
14 PDIP
14 SO
14 PDIP
14 SO
8 PDIP
8 SO
8 µMAX
8 PDIP
8 SO
8
7
6
5
8
7
6
5
V
GND
GND
DI
DE
B
A
A
CC
®
CODE
P14-3
S14-4
P14-3
S14-4
PKG
P8-1
S8-5
U8-1
P8-1
S8-5
1

Related parts for MAX1483CUA+T

MAX1483CUA+T Summary of contents

Page 1

... DIAGRAMS REFER TO PINS A AND B WHEN DE IS HIGH. TYPICAL OPERATING CIRCUIT SHOWN WITH DIP/SO PACKAGE. MAX1482 appears at end of data sheet. µMAX is a registered trademark of Maxim Integrated products, Inc. ________________________________________________________________ Maxim Integrated Products For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’ ...

Page 2

Slew-Rate-Limited 8 RS-485 Transceivers ABSOLUTE MAXIMUM RATINGS Supply Voltage (V ) ...............................................................7V CC Control Input Voltages (RE, DE) .................-0. Driver Input Voltage (DI).............................-0. Driver Output Voltages ..........................................-7.5V to 12.5V Receiver Input Voltages ...

Page 3

DC ELECTRICAL CHARACTERISTICS (continued ±5 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL No-Load Supply Current Supply Current in Shutdown I SHDN Driver Short-Circuit ...

Page 4

Slew-Rate-Limited 8 RS-485 Transceivers __________________________________________Typical Operating Characteristics (T = +25°C, unless otherwise noted.) A RECEIVER PROPAGATION DELAY vs. TEMPERATURE 1400 1300 1200 1100 1000 900 800 -40 - 100 TEMPERATURE (°C) ...

Page 5

Description PIN MAX1482 MAX1483 DIP/SO DIP/SO µMAX — — 10 — — — — — — ...

Page 6

Slew-Rate-Limited 8 RS-485 Transceivers _________________________________________________________________Test Circuits Figure 1. Driver DC Test Load DIFF Figure 3. Driver/Receiver Timing Test ...

Page 7

Waveforms PLH 1 ( (Z) DIFF DIFF 90 ...

Page 8

Slew-Rate-Limited 8 RS-485 Transceivers 10dB/div 0Hz 500kHz/div Figure 9. Driver Output Waveform and FFT, Transmitting 250kbps (125kHz) Signal Table 1. Transmitting INPUTS High-Z X ...

Page 9

A 500mV/div B RO 5V/div 500ns/div Figure 11. Receiver t PHL Low-Power Shutdown Mode A low-power shutdown mode is initiated by bringing RE high and DE low. The devices will not shut down unless both the driver and receiver ...

Page 10

Slew-Rate-Limited 8 RS-485 Transceivers DI RECEIVER INPUT s/div Figure 13. System Differential Voltage at 250kbps (125kHz) Driving 4000 Feet of Cable 120 ...

Page 11

A 120 120 NOTE: RE AND DE ON. Figure 15. MAX1482 Full-Duplex RS-485 Network A 120 120 D Y NOTE: RE AND ...

Page 12

Slew-Rate-Limited 8 RS-485 Transceivers ____Pin Configurations (continued) TOP VIEW MAX1482 N. GND 6 GND 7 DIP/SO (The package drawing(s) in this data sheet may not ...

Page 13

For the latest package outline information www.maxim-ic.com/packages TOP VIEW FRONT VIEW ______________________________________________________________________________________ 1 ⁄ -Unit-Load, Slew-Rate-Limited 8 ...

Page 14

... Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 14 __________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 © 2006 Maxim Integrated Products Package Information (continued) ...

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