The MAX3030E–MAX3033E family are low‑power, ±15 kV ESD‑protected quad RS‑422 transmitters that operate from a 3.3 V supply. They are offered in 2 Mbps or 20 Mbps guaranteed baud‑rate versions and support hot‑swap operation to avoid false data transitions during power‑up.
The devices are supplied in space‑saving 16‑pin TSSOP and narrow SO packages, feature low static current (<100 µA), and provide industry‑standard pin compatibility with the 26LS31 and SN75174. Detailed electrical characteristics, switching parameters and pin descriptions are provided for designers.
| ESD protection (Human Body Model) | ±15 kV |
|---|---|
| Maximum propagation delay | 16 ns |
| Part‑to‑part skew | < 5 ns |
| Static supply current (I_CC) – no‑load | < 100 µA |
| Driver output current per pin | ±150 mA |
| Available baud rates | 2 Mbps or 20 Mbps |
All outputs are protected to ±15 kV using the Human Body Model.
The devices are offered with either a 2 Mbps or a 20 Mbps guaranteed data rate.
Hot‑swap circuitry holds the enable inputs low during power‑up, preventing false transitions on the data lines.