AD8128 is a CAT-5 receiver with adjustable line equalization. It features compensation for CAT-5 cable losses, high frequency peaking adjustment, and broadband gain adjustment.
The AD8128 is a high‑speed differential receiver/equalizer designed to compensate for the transmission losses of unshielded twisted‑pair (UTP) CAT‑5 cables up to 100 m. It provides adjustable line equalization, broadband gain, and DC offset control for applications such as KVM, RGB video over UTP, professional video distribution, and security video.
The datasheet includes functional block diagrams, pin descriptions, typical performance curves, absolute maximum ratings, thermal resistance data, layout guidelines, and an ordering guide for the 8‑lead 3 mm × 3 mm LFCSP package. It also describes cascaded configurations for extending equalization to 200 m and lists available evaluation boards.
| Supply Current (quiescent) | 24 mA @ +5 V |
|---|---|
| Operating Voltage Range | +4.5 V to +5.5 V |
| Temperature Range (operating) | -40 °C to +85 °C |
| Package | 8‑lead 3 mm × 3 mm LFCSP |
The AD8128 is a high‑speed differential receiver/equalizer that compensates for the transmission losses of CAT‑5/UTP cables.
Two AD8128 devices can be cascaded to provide equalization for up to 200 m of CAT‑5 cable.
It is offered in an 8‑lead 3 mm × 3 mm lead‑frame chip‑scale package (LFCSP).
The absolute maximum supply voltage rating is 5.5 V.