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Part Number: MAX3293
Description: The MAX3293/MAX3294/MAX3295 low-power, highspeed transmitters for RS-485/RS-422 communication operate ...
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MAX3293
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DataSheet
General Description
MAX3293 General Description
The MAX3293/MAX3294/MAX3295 low-power, highspeed transmitters for RS-485/RS-422 communication operate from a single +3.3V power supply. These devices contain one differential transmitter. The MAX3295 transmitter operates at data rates up to 20Mbps, with an output skew of less than 5ns, and a guaranteed driver propagation delay below 25ns. The MAX3293 (250kbps) and MAX3294 (2.5Mbps) are slew-rate limited to minimize EMI and reduce reflections caused by improperly terminated cables.
The MAX3293/MAX3294/MAX3295 output level is guaranteed at +1.5V with a standard 54 load, compliant with RS-485 specifications. The transmitter draws 5mA of supply current when unloaded, and 1A in lowpower shutdown mode (DE = GND).
Hot-swap circuitry eliminates false transitions on the data cable during circuit initialization or connection to a live backplane, and short-circuit current limiting and thermalshutdown circuitry protect the driver against excessive power dissipation.
The MAX3293/MAX3294/MAX3295 are offered in a 6-pin SOT23 package, and are specified over the automotive temperature range.
MAX3293 Maximum Ratings
(All voltages referenced to GND, unless otherwise noted.)
Supply Voltage (VCC)..............................................................+6V
DE, DI .......................................................................-0.3V to +6V
Y, Z .........................................................................-7V to +12.5V
Maximum Continuous Power Dissipation (TA = +70°C)
6-Pin SOT23 (derate 6.25mW/°C above +70°C)............500mW
Operating Temperature Ranges
MAX32_ _EEUT.................................................-40°C to +85°C
MAX32_ _EAUT ..............................................-40°C to +125°C
Storage Temperature Range .........................-65°C to +160°C
Junction Temperature ...................................................+160°C
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.
MAX3293 Features
` Space-Saving 6-Pin SOT23 Package
` 250kbps/2.5Mbps/20Mbps Data Rates Available
` Operate from a Single +3.3V Supply
` ESD Protection
±9kV-Human Body Model
` Slew-Rate Limited for Errorless Data
Transmission (MAX3293/MAX3294)
` 1A Low-Current Shutdown Mode
` -7V to +12V Common-Mode Input Voltage Range
` Current Limiting and Thermal Shutdown for Driver-Overload Protection
` Hot-Swap Inputs for Telecom Applications
` Automotive Temperature Range (-40°C to +125°C)
` 250kbps/2.5Mbps/20Mbps Data Rates Available
` Operate from a Single +3.3V Supply
` ESD Protection
±9kV-Human Body Model
` Slew-Rate Limited for Errorless Data
Transmission (MAX3293/MAX3294)
` 1A Low-Current Shutdown Mode
` -7V to +12V Common-Mode Input Voltage Range
` Current Limiting and Thermal Shutdown for Driver-Overload Protection
` Hot-Swap Inputs for Telecom Applications
` Automotive Temperature Range (-40°C to +125°C)
MAX3293 Typical Application
·RS-485/RS-422 Communications
·Clock Distribution
·Telecom Equipment
·Automotive
·Security Equipment
·Point-of-Sale Equipment
·Industrial Control
·Clock Distribution
·Telecom Equipment
·Automotive
·Security Equipment
·Point-of-Sale Equipment
·Industrial Control
MAX3293 Connection Diagram
MAX3293
PDF/DataSheet Download
- Datasheet: MAX3293
- File Size: 335176 KB
- Manufacturer: Maxim
- Click here to Download
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