MAX3280EAUK-T

MAX3280EAUK-T Datasheet

MAX3280E/MAX3281E/MAX3283E/MAX3284E

Part	Datasheet
MAX3280EAUK-T	MAX3280EAUK-T (pdf)

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MAX3280E/MAX3281E/MAX3283E/MAX3284E ±15kV ESD-Protected 52Mbps, 3V to 5.5V, SOT23 RS-485/RS-422 True Fail-Safe Receivers The MAX3280E/MAX3281E/MAX3283E/MAX3284E are single receivers designed for RS-485 and RS-422 communication. These devices guarantee data rates up to 52Mbps, even with a 3V power supply. Excellent propagation delay 15ns max and package-to-package skew time 8ns max make these devices ideal for multidrop clock distribution applications. The MAX3280E/MAX3281E/MAX3283E/MAX3284E have true fail-safe circuitry, which guarantees a logichigh receiver output when the receiver inputs are opened or shorted. The receiver output will be a logic high if all transmitters on a terminated bus are disabled high impedance . These devices feature 1/4-unit-load receiver input impedance, allowing up to 128 receivers on the same bus. The MAX3280E is a single receiver available in a 5-pin SOT23 package. The MAX3281E/MAX3283E single receivers have a receiver enable EN or EN function and are offered in a 6-pin SOT23 package. The MAX3284E features a voltage logic pin that allows compatibility with low-voltage logic levels, as in digital FPGAs/ASICs. On the MAX3284E, the voltage threshold for a logic high is user-defined by setting VL in the range from 1.65V to VCC. The MAX3284E is also offered in a 6-pin SOT23 package. o ESD Protection Body Model 1000-4-2, Contact Discharge 1000-4-2, Air-Gap Discharge o Guaranteed 52Mbps Data Rate o Guaranteed 15ns Receiver Propagation Delay o Guaranteed 2ns Receiver Skew o Guaranteed 8ns Package-to-Package Skew Time o VL Pin for Connection to FPGAs/ASICs o Allow Up to 128 Transceivers on the Bus 1/4-unit-load o Tiny SOT23 Package o True Fail-Safe Receiver o -7V to +12V Common-Mode Range o 3V to 5.5V Power-Supply Range o Enable High and Low Pins for Redundant Operation o Three-State Output Stage MAX3281E/MAX3283E o Thermal Protection Against Output Short Circuit Clock Distribution Telecom Racks Base Stations Industrial Control Local Area Networks Pin Configurations appear at end of data sheet. Ordering Information PART MAX3280EAUK-T MAX3281EAUT-T MAX3283EAUT-T MAX3284EAUT-T TEMP RANGE -40°C to +125°C -40°C to +125°C -40°C to +125°C -40°C to +125°C PINPACKAGE 5 SOT23-5 6 SOT23-6 SOT23-6 SOT23-6 TOP MARK ADVM ABAT ABAU ABAV Selector Guide PART MAX3280E MAX3281E MAX3283E MAX3284E Note 1 MAX3284E data rate is dependent on VL. ENABLE Active High Active Low DATA RATE 52Mbps 52Mbps Note 1 PACKAGE 5-Pin SOT23 6-Pin SOT23 6-Pin SOT23 6-Pin SOT23 Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at ±15kV ESD-Protected 52Mbps, 3V to 5.5V, SOT23 RS-485/RS-422 True Fail-Safe Receivers MAX3280E/MAX3281E/MAX3283E/MAX3284E ABSOLUTE MAXIMUM RATINGS All Voltages Referenced to GND Supply Voltage VCC to +6V Control Input Voltage EN, to +6V VL Input Voltage to +6V Receiver Input Voltage A, B ..............................-7.5V to +12.5V Receiver Output Voltage RO ....................-0.3V to VCC + 0.3V Receiver Output Voltage RO MAX3284E to VL + 0.3V Receiver Output Short-Circuit Current .......................Continuous Continuous Power Dissipation TA = +70°C 5-Pin SOT23 derate 7.1mW/°C above +70°C ............571mW 6-Pin SOT23 derate 8.7mW/°C above +70°C ............696mW Operating Temperature Range MAX328_EA__ to +125°C Storage Temperature Range .............................-65°C to +150°C Junction Temperature Lead Temperature soldering, 10s .................................+300°C Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELECTRICAL CHARACTERISTICS VCC = 3V to 5.5V, VL = VCC, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 5V and TA = +25°C. Notes 2, 3 PARAMETER Supply Voltage Supply Current VL Input Range VL Supply Current RECEIVER Input Current A and B Receiver Differential Threshold Voltage Receiver Input Hysteresis Receiver Enable Input Low Receiver Enable Input High Receiver Enable Input Leakage Receiver Output High Voltage Receiver Output Low Voltage Three-State Output Current at Receiver Input Resistance Receiver Output Short-Circuit Current ESD PROTECTION ESD Protection A, B SYMBOL VCC ICC VL IL CONDITIONS No load MAX3284E No load MAX3284E IA, B VTH VENIL VENIH ILEAK IOZR RIN IOSR VCC = GND or 5.5V -7V VCM +12V Note 4 VIN = +12V VIN = -7V VA + VB = 0 MAX3281E, MAX3283E only MAX3281E, MAX3283E only MAX3281E, MAX3283E only MAX3280E/MAX3281E/MAX3283E, IOH = -4mA, RO high MAX3284E, IOH = -1mA, 1.65V VL VCC, RO high MAX3280E/MAX3281E/MAX3283E, IOL = 4mA, RO low MAX3284E, IOL = 1mA, 1.65V VL VCC, RO low 0 VO VCC, RO = high impedance -7V VCM +12V Note 5 0 VRO VCC Human Body Model IEC1000-4-2 Air-Gap Discharge IEC1000-4-2 Contact Discharge MIN TYP -200 -125 25 VCC - VL -

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MAX3280E/MAX3281E/MAX3283E/MAX3284E
±15kV ESD-Protected 52Mbps, 3V to 5.5V, SOT23 RS-485/RS-422 True Fail-Safe Receivers

The MAX3280E/MAX3281E/MAX3283E/MAX3284E are single receivers designed for RS-485 and RS-422 communication. These devices guarantee data rates up to 52Mbps, even with a 3V power supply. Excellent propagation delay 15ns max and package-to-package skew time 8ns max make these devices ideal for multidrop clock distribution applications.

The MAX3280E/MAX3281E/MAX3283E/MAX3284E have true fail-safe circuitry, which guarantees a logichigh receiver output when the receiver inputs are opened or shorted. The receiver output will be a logic high if all transmitters on a terminated bus are disabled high impedance . These devices feature 1/4-unit-load receiver input impedance, allowing up to 128 receivers on the same bus.

The MAX3280E is a single receiver available in a 5-pin SOT23 package. The MAX3281E/MAX3283E single receivers have a receiver enable EN or EN function and are offered in a 6-pin SOT23 package. The MAX3284E features a voltage logic pin that allows compatibility with low-voltage logic levels, as in digital FPGAs/ASICs. On the MAX3284E, the voltage threshold for a logic high is user-defined by setting VL in the range from 1.65V to VCC. The MAX3284E is also offered in a 6-pin SOT23 package.
o ESD Protection Body Model 1000-4-2, Contact Discharge 1000-4-2, Air-Gap Discharge
o Guaranteed 52Mbps Data Rate o Guaranteed 15ns Receiver Propagation Delay o Guaranteed 2ns Receiver Skew o Guaranteed 8ns Package-to-Package Skew Time o VL Pin for Connection to FPGAs/ASICs o Allow Up to 128 Transceivers on the Bus
1/4-unit-load o Tiny SOT23 Package o True Fail-Safe Receiver o -7V to +12V Common-Mode Range o 3V to 5.5V Power-Supply Range o Enable High and Low Pins for Redundant

Operation o Three-State Output Stage MAX3281E/MAX3283E o Thermal Protection Against Output Short Circuit

Clock Distribution Telecom Racks Base Stations Industrial Control Local Area Networks

Pin Configurations appear at end of data sheet.
Ordering Information

PART

MAX3280EAUK-T MAX3281EAUT-T MAX3283EAUT-T MAX3284EAUT-T

TEMP RANGE
-40°C to +125°C -40°C to +125°C -40°C to +125°C -40°C to +125°C

PINPACKAGE
5 SOT23-5 6 SOT23-6 SOT23-6 SOT23-6

TOP MARK

ADVM ABAT ABAU ABAV

Selector Guide

PART

MAX3280E

MAX3281E

MAX3283E

MAX3284E

Note 1 MAX3284E data rate is dependent on VL.

ENABLE

Active High Active Low

DATA RATE 52Mbps
52Mbps Note 1

PACKAGE 5-Pin SOT23 6-Pin SOT23 6-Pin SOT23 6-Pin SOT23

Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at
±15kV ESD-Protected 52Mbps, 3V to 5.5V, SOT23 RS-485/RS-422 True Fail-Safe Receivers

MAX3280E/MAX3281E/MAX3283E/MAX3284E

ABSOLUTE MAXIMUM RATINGS

All Voltages Referenced to GND

Supply Voltage VCC to +6V Control Input Voltage EN, to +6V

VL Input Voltage to +6V Receiver Input Voltage A, B ..............................-7.5V to +12.5V

Receiver Output Voltage RO ....................-0.3V to VCC + 0.3V Receiver Output Voltage

RO MAX3284E to VL + 0.3V Receiver Output Short-Circuit Current .......................Continuous

Continuous Power Dissipation TA = +70°C 5-Pin SOT23 derate 7.1mW/°C above +70°C ............571mW 6-Pin SOT23 derate 8.7mW/°C above +70°C ............696mW

Operating Temperature Range MAX328_EA__ to +125°C

Storage Temperature Range .............................-65°C to +150°C Junction Temperature Lead Temperature soldering, 10s .................................+300°C

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

ELECTRICAL CHARACTERISTICS

VCC = 3V to 5.5V, VL = VCC, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = 5V and TA = +25°C. Notes 2, 3

PARAMETER Supply Voltage Supply Current VL Input Range VL Supply Current RECEIVER Input Current A and B

Receiver Differential Threshold Voltage Receiver Input Hysteresis Receiver Enable Input Low Receiver Enable Input High Receiver Enable Input Leakage

Receiver Output High Voltage

Receiver Output Low Voltage

Three-State Output Current at Receiver Input Resistance Receiver Output Short-Circuit Current ESD PROTECTION

ESD Protection A, B

SYMBOL VCC ICC VL IL

CONDITIONS

No load MAX3284E No load MAX3284E

IA, B VTH VENIL VENIH ILEAK

IOZR RIN IOSR

VCC = GND or 5.5V
-7V VCM +12V Note 4

VIN = +12V VIN = -7V

VA + VB = 0 MAX3281E, MAX3283E only MAX3281E, MAX3283E only

MAX3281E, MAX3283E only

MAX3280E/MAX3281E/MAX3283E, IOH = -4mA, RO high

MAX3284E, IOH = -1mA, 1.65V VL VCC, RO high

MAX3280E/MAX3281E/MAX3283E, IOL = 4mA, RO low

MAX3284E, IOL = 1mA, 1.65V VL VCC, RO low
0 VO VCC, RO = high impedance -7V VCM +12V Note 5 0 VRO VCC

Human Body Model IEC1000-4-2 Air-Gap Discharge IEC1000-4-2 Contact Discharge

MIN TYP
-200
-125 25

VCC - VL -

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Datasheet ID: MAX3280EAUK-T 647298