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Data Sheet

FULL DATA SHEET (PDF, 1.7MB) Download   E-Mail

Description

The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB are complete, electrically isolated, RS-485/RS-422 data communications interface solutions in a hybrid microcircuit. The RS-485/RS-422 I/O pins are protected against ±15kV electrostatic discharge (ESD) shocks, without latchup. Transceivers, optocouplers, and a transformer provide a complete interface in a standard DIP package. A single +5V supply on the logic side powers both sides of the interface. The MAX1480EC/MAX1490EB feature reduced-slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 160kbps. The MAX1480EA/MAX1490EA driver slew rate is not limited, allowing transmission rates up to 2.5Mbps. The MAX1480EA/MAX1480EC are designed for half-duplex communication, while the MAX1490EA/MAX1490EB feature full-duplex communication. Drivers are short-circuit current limited and protected 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 known output (RO low for the MAX1480EA/MAX1480EC, active-low RO high for the MAX1490EA/ MAX1490EB) if the input is open circuit. The MAX1480EA/MAX1480EC/MAX1490EA/MAX1490EB withstand 1260VRMS (1min) or 1520VRMS (1s). Their isolated outputs meet all RS-485/RS-422 specifications. The MAX1480EA/MAX1480EC are available in a 28-pin DIP package, and the MAX1490EA/MAX1490EB are available in a 24-pin DIP package.

Key Features		Applications/Uses
Isolated Data Interface, Guaranteed to 1260VRMS (1min) +15kV ESD Protection on I/O Pins Slew-Rate Limited for Errorless Data Transmission (MAX1480EC/MAX1490EB) High-Speed, Isolated, 2.5Mbps RS-485/RS-422 Interface (MAX1480EA/MAX1490EA) Full-Duplex Data Communication (MAX1490EA/MAX1490EB) Single +5V Supply Current Limiting and Thermal Shutdown for Driver Overload Protection Standard 0.6in DIP Packages 28-Pin DIP (MAX1480EA/MAX1480EC) 24-Pin DIP (MAX1490EA/MAX1490EB)		Automated Test Equipment (ATE) HVAC/Building Control Networks Industrial Control Local Area Networks Isolated RS-485/RS-422 Data Interface Telecom Transceivers for EMI-Sensitive Applications

Application Notes

Application Note 639: Maxim Leads the Way in ESD Protection - MAX1480E, MAX1490E Application Note 651: ESD Protection for I/O Ports - MAX1480E, MAX1490E Application Note 736: RS-485 (EIA/TIA-485) Differential Data Transmission System Basics - MAX1480E, MAX1490E Application Note 763: Guidelines for Proper Wiring of an RS-485 (TIA/EIA-485-A) Network - MAX1480E, MAX1490E Application Note 2045: Understanding Common-Mode Signals - MAX1480E Application Note 2116: RS-485 Data Interface Gives Isolated, Full-Duplex Operation - MAX1480E, MAX1480E

Evaluation Kits

none

Design Guides

INTERFACE (PDF)

Reliability Reports

Show FIT data for: MAX1480E MAX1490E Request Reliability Report for: MAX1480E MAX1490E

Software/Models

none

Ordering Information
Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
Devices: 1-16 of 16
MAX1480E	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1480EACPI			PDIP;28 pin;593 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P28M-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX1480ECCPI+			PDIP;28 pin;593 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P28M+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1480EACPI+			PDIP;28 pin;593 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P28M+1*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1480ECCPI			PDIP;28 pin;593 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P28M-1*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX1480ECEPI			PDIP;28 pin;593 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P28M-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1480ECEPI+			PDIP;28 pin;593 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P28M+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1480EAEPI			PDIP;28 pin;593 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P28M-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1480EAEPI+			PDIP;28 pin;593 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P28M+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1490E	Free Sample	Buy	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX1490EAEPG			PDIP;24 pin;512 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P24M-2*		RoHS/Lead-Free: No Materials Analysis
MAX1490EBCPG			PDIP;24 pin;512 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P24M-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX1490EACPG			PDIP;24 pin;512 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P24M-2*	0°C to +70°C	RoHS/Lead-Free: No Materials Analysis
MAX1490EACPG+			PDIP;24 pin;512 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P24M+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1490EBCPG+			PDIP;24 pin;512 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P24M+2*	0°C to +70°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1490EBEPG			PDIP;24 pin;512 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P24M-2*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX1490EAEPG+			PDIP;24 pin;512 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P24M+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX1490EBEPG+			PDIP;24 pin;512 mm² Dwg: 21-0044B (PDF) Use pkgcode/variation: P24M+2*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

More Information

New Product Press Release 2001-11-06

Related Products

MAX1480A, MAX1480B, MAX1480C, MAX1490A, MAX1490B Complete, Isolated RS-485/RS-422 Data Interface

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