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MAX3293AUT+T Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX3293AUT+T Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 11 page General Description The MAX3293/MAX3294/MAX3295 low-power, high- speed 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 guar- anteed at +1.5V with a standard 54 Ω load, compliant with RS-485 specifications. The transmitter draws 5mA of supply current when unloaded, and 1µA in low- power 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 thermal- shutdown 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. Applications RS-485/RS-422 Communications Clock Distribution Telecom Equipment Automotive Security Equipment Point-of-Sale Equipment Industrial Control 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) ♦ 1µA 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) 20Mbps, +3.3V, SOT23 RS-485/ RS-422 Transmitters ________________________________________________________________ Maxim Integrated Products 1 Selector Guide Ordering Information 19-2770; Rev 3; 3/11 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. PART TEMP RANGE PIN-PACKAGE MAX3293AUT+T -40°C to +125°C 6 SOT23-6 MAX3294AUT+T -40°C to +125°C 6 SOT23-6 MAX3295AUT+T -40°C to +125°C 6 SOT23-6 PART MAXIMUM DATA RATE (Mbps) SLEW- RATE LIMITED TOP MARK MAX3293AUT+T 0.25 Yes ABNI or ABVH MAX3294AUT+T 2.5 Yes ABNJ or ABVI MAX3295AUT+T 20 No ABNK or ABVJ Typical Operating Circuit MAX3293 MAX3294 MAX3295 D DI DE MAX3280E MAX3281E MAX3283E MAX3284E R RO 120 Ω Z Y + Denotes a lead(Pb)-free/RoHS-compliant package. T = Tape and reel. Pin Configuration appears at end of data sheet. |
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