MAX4888B/MAX4888C are dual 8.0Gbps passive switches, ideal for switching two possible destinations of PCI ExpressM (PCIe) data. They support various high-speed interfaces, have superior bandwidth return loss, and come in a small form factor.
The MAX4888B and MAX4888C are dual double‑pole/double‑throw (2 × DPDT) high‑speed passive switches designed to route PCI Express, SAS, SATA, and XAUI signals between two possible destinations. They operate from a single 3.0 V to 3.6 V supply and feature dual digital control inputs (SEL, SELB) with built‑in pull‑up/pull‑down resistors.
The datasheet provides detailed electrical characteristics, including on‑resistance, turn‑on/off times, propagation delay, and insertion loss up to 8 Gbps. Pin configuration, functional truth tables, and recommended board‑layout guidelines are included to aid designers in implementing the device in high‑speed systems.
| Power‑Supply Range | 3.0 V to 3.6 V |
|---|---|
| Operating Temperature Range | -40 °C to +85 °C |
The devices operate from a single 3.0 V to 3.6 V power supply.
It has dual digital control inputs, labeled SEL and SELB.
Both devices are offered in a 3.5 mm × 5.5 mm, 28‑pin TQFN package.