Devices in the MAX3483AE family (MAX3483AE/MAX3485AE/MAX3488AE/MAX3490AE/MAX3491AE) are ±20kV ESD-protected RS-485/422 transceivers, optimized for extended cable runs in noisy environments. All devices operate from a single 3.3V supply.
The MAX3483AE and MAX3485AE are half-duplex transceivers. The MAX3488AE, MAX3490AE, and MAX3491AE are full-duplex transceivers. All receivers feature a unit-load input impedance, allowing up to 32 devices on a single bus. Each transceiver includes a fail-safe receiver, ensuring that the receiver output (RO) is high when inputs are shorted, open, or connected to a tri-state bus. All devices feature enhanced electrostatic discharge (ESD) protection. All transmitter outputs and receiver inputs are protected to ±20kV HBM ESD, ±15kV Air-Gap ESD and ± 8kV Contact ESD in accordance to IEC 61000-4-2.
The MAX3483AE, MAX3485AE, MAX3488AE, and MAX3490AE are available in industry standard 8-pin SO package, while the MAX3491AE is available in a 14-pin SO package.
|Part Number||Tx/Rx||Duplex||VSUPPLY |
|Data Rate |
|ESD Protect. |
|Tx EN||Rx EN||Rx/Tx on Bus||Rx Failsafe w/ Inputs||Slew Rate Limiting||Oper. Temp. |
|MAX3483AE||1Tx + 1Rx||Half||3.3||1.9||250||20||Yes||Yes||32||Open or Shorted||No||-40 to +125|| |
|MAX3485AE||Half||20000||Yes||Yes||32||-40 to +125|| |
|MAX3488AE||Full||250||No||No||128||-40 to +125|| |
|MAX3490AE||Full||20000||No||No||128||-40 to +105|| |
|MAX3491AE||Full||20000||Yes||Yes||128||-40 to +125|| |
|See All RS-485/RS-422 Line Driver/Receivers (199)|
| Pricing Notes: |
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.