High ESD protection increases robustness and reliability of industrial end equipment
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.
title | Download file |
---|---|
MAX3483AE-MAX3491AE Data Sheet | MAX3483AE-MAX3491AE.pdf |
Part Number | Tx/Rx | Duplex | VSUPPLY (V) | ICC (mA) | Data Rate (kbps) | ESD Protect. (±kV) | Tx EN | Rx EN | Rx/Tx on Bus | Rx Failsafe w/ Inputs | Slew Rate Limiting | Oper. Temp. (°C) | Package/Pins | Budgetary Price |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
typ | min | See Notes | ||||||||||||
MAX3483AE | 1Tx + 1Rx | Half | 3.3 | 1.9 | 250 | 20 | Yes | Yes | 32 | Open or Shorted | No | -40 to +125 | SOIC(N)/8 | $1.98 @1k |
MAX3485AE | Half | 20000 | Yes | Yes | 32 | -40 to +125 | SOIC(N)/8 | $2.03 @1k | ||||||
MAX3488AE | Full | 250 | No | No | 128 | -40 to +125 | SOIC(N)/8 | $2.08 @1k | ||||||
MAX3490AE | Full | 20000 | No | No | 128 | -40 to +105 | SOIC(N)/8 | $2.13 @1k | ||||||
MAX3491AE | Full | 20000 | Yes | Yes | 128 | -40 to +125 | SOIC(N)/14 | $2.18 @1k | ||||||
Part Number | Status | Recommended Replacement | Package | Temp | RoHS |
---|---|---|---|---|---|
MAX3490AEGSA+ | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +105°C | Lead Free | |
MAX3490AEGSA+T | Active | SOIC(N),;8 pin;30.9 mm² | -40°C to +105°C | Lead Free |