ADM3488 3.3 V, Low Power, RS-485/RS-422 Transceiver (Full Duplex, 250 kbps, Slew Rate Limited)

The ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 are low power, differential line transceivers designed to operate using a single 3.3 V power supply. Low power consumption, coupled with a shutdown mode, makes the ADM3483/ADM3485/ADM3488/ ADM3490/ADM3491 ideal for power-sensitive applications. Applications

The ADM3488/ADM3490/ADM3491 feature full-duplex communication, while the ADM3483/ADM3485 are designed for half-duplex communication.

The ADM3483/ADM3488 feature slew rate limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250 kbps.

The ADM3485/ADM3490/ADM3491 transmit at up to 10 Mbps. The receiver input impedance is 12 kΩ, allowing up to 32 trans-ceivers to be connected on the bus. A thermal shutdown circuit prevents excessive power dissipation caused by bus contention or by output shorting. If a significant temperature increase is detected in the internal driver circuitry during fault conditions, then the thermal shutdown circuit forces the driver output into a high impedance state. If the inputs are unconnected (floating), the receiver contains a fail-safe feature that results in a logic high output state. The parts are fully specified over the commercial and industrial temperature ranges. The ADM3483/ADM3485/ADM3488/ADM3490 are available in 8-lead SOIC_N; the ADM3491 is available in a 14-lead SOIC_N.

Features and Benefits
  • Operate with 3.3 V supply
  • Interoperable with 5 V logic
  • EIA RS-485/RS-422 Compliant over Full Common-Range
  • Data Rate Options: 250 kbps
  • Half and Full Duplex Options
  • Reduced Slew Rates for Low EMI
  • Up to 32 Transceivers on a Bus
  • -7V to +12V Bus Common Mode Range
  • Specified over –40°C to +85°C Temperature Range
  • Available in 8-Lead SOIC
Interface & Isolation
IBIS Models
Data Sheets
Documentnote
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491: 3.3V Slew Rate Limited, Half and Full Duplex, RS-485/RS-422 Transceivers Data Sheet (Rev. E)PDF 449 kB
Application Notes
Documentnote
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 NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
ADM3488ARZ Production8 ld SOICOTH 98-40 to 85C1.010.91Y
ADM3488ARZ-REEL7 Production8 ld SOICREEL 1000-40 to 85C00.91Y
ADM3488ARZN Last Time Buy8 ld SOICOTH 98-40 to 85C1.010.91Y
ADM3488ARZN-RL7 Last Time Buy8 ld SOICREEL 1000-40 to 85C00.91Y
Reference Materials
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491: 3.3V Slew Rate Limited, Half and Full Duplex, RS-485/RS-422 Transceivers Data Sheet (Rev. E) adm3491
ADM3488 IBIS Model adm3488
AN-1176：二进制.Bxl文件格式的元件尺寸和符号 (Rev. 0) adn4670
AN-1176: Component Footprints and Symbols in the Binary .Bxl File Format (Rev. 0) adn4670
AN-960: RS-485/RS-422电路实施指南 (Rev. 0) adm2486
AN-960: RS-485/RS-422 Circuit Implementation Guide (Rev. 0) adm2486
Emerging Energy Applications Solutions Bulletin, Volume 10, Issue 4 ad7656
Test & Instrumentation Solutions Bulletin, Volume 10, Issue 3 ad7780
ADI RS-485/RS-422 Cross Reference Guide adm2486
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