The document is the datasheet of MAX4890E/MAX4892E. It introduces the functions, features, applications, and usage methods of MAX4890E/MAX4892E.
The MAX4890E and MAX4892E are 1000 Base‑T LAN switches offering up to +15 kV ESD protection and low on‑resistance (4 Ω typ) for high‑frequency Ethernet, LVDS and LVPECL applications. They are supplied in space‑saving 32‑pin and 36‑pin TQFN packages and operate from –40 °C to +85 °C.
The devices feature ultra‑low on‑capacitance (8 pF typ), a –3 dB bandwidth of 650 MHz, built‑in LED switches on the MAX4892E, and a charge‑pump architecture that provides a 7.5 V gate drive while maintaining low Ron across the input range. Proper layout and power‑sequencing are recommended for optimal performance.
| On‑Capacitance (Con) | 8 pF typ |
|---|---|
| Bandwidth (‑3 dB) | 650 MHz |
| ESD Protection | +15 kV (Human Body Model) |
| Operating Temperature Range | -40 °C to +85 °C |
| Supply Voltage | 3.0 V to 3.6 V |
| Quiescent Current | 450 pA max |
| Package Pin Count | 32‑pin (MAX4890E) or 36‑pin (MAX4892E) TQFN |
The devices are rated for +15 kV ESD protection according to the Human Body Model (MIL‑STD‑883, Method 3015).
They operate from a single supply voltage of 3.0 V to 3.6 V.
The MAX4892E is offered in a 36‑pin TQFN package.