MAX3362EKATG16 Maxim Integrated Products, Inc., MAX3362EKATG16 Datasheet

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MAX3362EKATG16

Manufacturer Part Number
MAX3362EKATG16
Description
Max3362 3.3v, High-speed, Rs-485/rs-422 Transceiver In Sot Package
Manufacturer
Maxim Integrated Products, Inc.
Datasheet
The MAX3362 low-power, high-speed transceiver for
RS-485/RS-422 communication operates from a single
+3.3V power supply. The device contains one differen-
tial transceiver consisting of a line driver and receiver.
The transceiver operates at data rates up to 20Mbps,
with an output skew of less than 6ns. Driver and receiv-
er propagation delays are guaranteed below 50ns. This
fast switching and low skew make the MAX3362 ideal
for multidrop clock/data distribution applications.
The output level is guaranteed at +1.5V with a standard
54Ω load, compliant with RS-485 specifications. The
transceiver draws 1.7mA supply current when
unloaded or fully loaded with the drivers disabled.
Additionally, the MAX3362 has a low-power shutdown
mode, reducing the supply current to 1µA.
The MAX3362 has a 1/8-unit-load receiver input imped-
ance, allowing up to 256 transceivers on the bus. The
MAX3362 is designed for half-duplex communication.
The device has a hot-swap feature that eliminates false
transitions on the data cable during circuit initialization.
The drivers are short-circuit current limited, and a ther-
mal shutdown circuit protects against excessive power
dissipation.
The MAX3362 is available in an 8-pin SOT package
and specified over industrial and automotive tempera-
ture ranges.
19-2218; Rev 3; 3/07
Pin Configuration and Functional Diagram appear at end of
data sheet.
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.
3.3V, High-Speed, RS-485/RS-422 Transceiver in
Clock/Data Distribution
Telecom Equipment
Security Equipment
Point-of-Sale Equipment
Industrial Controls
RO
DE
RE
DI
________________________________________________________________ Maxim Integrated Products
D
MAX3362
R
General Description
B
A
120Ω
Applications
DI
B
D
DE
A
RO
R
RE
o Space-Saving 8-Pin SOT Package
o Guaranteed 20Mbps Data Rate
o Operates from a Single +3.3V Supply
o 6ns (max) Transmitter and Receiver Skew
o Hot-Swap Feature
o Interoperable with +5V Logic
o Allows up to 256 Transceivers on the Bus
o 1µA Low-Power Shutdown Mode
o 1.7mA Operating Supply Current
o -7V to +12V Common-Mode Range
o Current Limiting and Thermal Shutdown
o Half-Duplex Operation
o Automotive Temperature Range Variants
M AX3362E KA-T - 40°C to + 85°C
M AX3362AKA-T - 40°C to + 125°C 8 SOT23- 8
M AX3362E KA#T - 40°C to + 85°C
M AX3362AKA#T - 40°C to + 125°C 8 SOT23- 8
#Indicates an RoHS-compliant part.
B
DI
PA RT
D
DE
A
Typical Operating Circuit
RO
R
120Ω
R A NG E
RE
T EM P
Ordering Information
SOT Package
B
A
PIN-
PA CK A G E
8 SOT23- 8
8 SOT23- 8
R
D
DE
DI
RO
RE
Features
#AEP H
#AEP P
M A RK
AALL
AAJL
T O P
C O DE
PK G
S 8-1
S 8-1
S 8-1
S 8-1
1

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MAX3362EKATG16 Summary of contents

Page 1

Rev 3; 3/07 3.3V, High-Speed, RS-485/RS-422 Transceiver in General Description The MAX3362 low-power, high-speed transceiver for RS-485/RS-422 communication operates from a single +3.3V power supply. The device contains one differen- tial transceiver consisting of a line driver and receiver. ...

Page 2

High-Speed, RS-485/RS-422 Transceiver in SOT Package ABSOLUTE MAXIMUM RATINGS All voltages with respect to GND. RE, DE, DI ......................................................-0. Receiver Input Voltages, Driver Output Voltages (A, B) .......................................................-8V to +13V Receiver Input Current, Driver ...

Page 3

High-Speed, RS-485/RS-422 Transceiver in DC ELECTRICAL CHARACTERISTICS (continued +3.3V ±5 MIN MAX PARAMETER SYMBOL Thermal Shutdown Threshold Thermal Shutdown Hysteresis RECEIVER Receiver Differential Threshold Voltage Receiver Input Hysteresis Receiver Output ...

Page 4

High-Speed, RS-485/RS-422 Transceiver in SOT Package SWITCHING CHARACTERISTICS (continued +3.3V ±5 unless otherwise noted. Typical values are MIN MAX PARAMETER SYMBOL Driver Enable to Output High t ...

Page 5

High-Speed, RS-485/RS-422 Transceiver +3.3V +25°C, unless otherwise noted OUTPUT CURRENT vs. RECEIVER OUTPUT LOW VOLTAGE 0.5 1.0 1.5 2.0 2.5 3.0 RECEIVER ...

Page 6

High-Speed, RS-485/RS-422 Transceiver in SOT Package (V = +3.3V +25°C, unless otherwise noted SHUTDOWN SUPPLY CURRENT vs. TEMPERATURE 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 -40 -25 - ...

Page 7

High-Speed, RS-485/RS-422 Transceiver in PIN NAME Receiver Output high if the receiver input differential (A-B) ≥ 200mV and the receiver is enabled 1 RO (RE is low low if the receiver input differential (A-B) ≤ ...

Page 8

High-Speed, RS-485/RS-422 Transceiver in SOT Package IN OUT V OL Figure 5. Driver Enable and Disable Times (t IN OUT V OL Figure 6. Receiver Propagation Delays 8 _______________________________________________________________________________________ 50pF R L ...

Page 9

High-Speed, RS-485/RS-422 Transceiver in 1.5V -1.5V IN OUT S1 OPEN S2 CLOSED S3 = 1.5V 1. PRHZ 0.25V OUT S1 OPEN S2 CLOSED S3 = 1.5V Figure 7. Receiver Enable and Disable Times Detailed Description The MAX3362 ...

Page 10

High-Speed, RS-485/RS-422 Transceiver in SOT Package Table 1. Transmitter Functional Table TRANSMITTING INPUTS High Table 2. Receiver Functional Table RECEIVING INPUTS RE DE ...

Page 11

High-Speed, RS-485/RS-422 Transceiver in V TIMER DE Figure 8. Simplified Structure of the Driver Enable Input (DE) 3.3V 1kΩ 0.1kΩ GND CC Z 1kΩ Figure 9. Differential Power-Up Glitch (Hot Swap) ______________________________________________________________________________________ ...

Page 12

High-Speed, RS-485/RS-422 Transceiver in SOT Package A-B 1µs/div Figure 11. Differential Power-Up Glitch (1V/µs) connected to the line and is powered up the driver must not cause the differential signal to drop below 200mV. Figures ...

Page 13

High-Speed, RS-485/RS-422 Transceiver in Pin Configuration TOP VIEW MAX3362 SOT23 ______________________________________________________________________________________ GND PROCESS: BiCMOS SOT Package Functional Diagram MAX3362 DI ...

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 © 2007 Maxim Integrated Products Package Information is a registered trademark of Maxim Integrated Products, Inc. ...

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