ADM3074E 3.3 V, ⅛ Load, ±15kV ESD Protected, RS-485/RS-422 Transceiver (Full Duplex, 500 kbps)

The ADM307xE are 3.3 V, low power data transceivers with ±15 kV ESD protection suitable for full- and half-duplex communication on multipoint bus transmission lines. They are designed for balanced data transmission, and they comply with TIA/EIA standards: RS-485 and RS-422. Applications

The devices have a ⅛ unit load receiver input impedance, which allows up to 256 transceivers on a bus. Because only one driver should be enabled at any time, the output of a disabled or powered-down driver is tristated to avoid overloading the bus.

The receiver inputs have a true fail-safe feature, which eliminates the need for external bias resistors and ensures a logic high output level when the inputs are open or shorted. This guarantees that the receiver outputs are in a known state before communication begins and when communication ceases.

Features and Benefits

TIA/EIA RS-485/RS-422 compliant
±15 kV ESD protection on RS-485 input/output pins
Data rates ADM3073E/ADM3074E/ADM3075E: 500 kbps
Half- and full-duplex options
True fail-safe receiver inputs
Up to 256 nodes on the bus

−40°C to +125°C temperature option
Hot-swap input structure on DE and RE pins
Reduced slew rates for low EMI
Low power shutdown current (all except ADM3071E/ ADM3074E/ADM3077E)
Outputs high-Z when disabled or powered off
See data sheet for addional features

Interface & Isolation

Interface RS-485 and RS-422

Security and Surveillance

Video Surveillance
Access Control
Scanning Equipment

Data Sheets

Document	note
ADM3070E/ADM3071E/ADM3072E/ADM3073E/ADM3074E/ADM3075E/ADM3076E/ADM3077E/ADM3078E: 3.3 V, ±15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers Data Sheet (Rev. E)	PDF 522 kB

Application Notes

Document	note
AN-1176: Component Footprints and Symbols in the Binary .Bxl File Format (Rev. 0)	PDF 671 kB
AN-960: RS-485/RS-422 Circuit Implementation Guide (Rev. 0)	PDF 245 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADM3074EARZ Production	8 ld SOIC	OTH 98	-40 to 85C	1.73	1.57	Y
ADM3074EARZ-REEL7 Production	8 ld SOIC	REEL 1000	-40 to 85C	0	1.57	Y
ADM3074EYRZ Production	8 ld SOIC	OTH 98	-40 to 125C	1.89	1.72	Y
ADM3074EYRZ-REEL7 Production	8 ld SOIC	REEL 1000	-40 to 125C	0	1.72	Y