Line driver amp eases thermal constraints

Designed with Adaptive Linear Power technology (a technique that tracks ADSL2+/VDSL2 input signals on two channels simultaneously, and then dynamically selects the higher peak), the ADLD8404 dual-port Class H line driver amplifier eases thermal constraints in ADSL2+/VDSL2 line cards. The part features a line power of 20.4 dBm, a supply voltage of 14 V, and a differential output voltage of 40 Vp-p.

The device consists of two differential, high-output current, low-power operational amplifiers. In addition, it offers –65-dBc MTPR (multitone power ratio) at 20.4 dBm, operating 26 kHz to 2.2 MHz and –55 dBc MTPR at 14.5 dBm, operating 5.2 to 17.6 MHz. Housed in 24-lead LFCSP packages, the part operates over –40° to 85°C. ($1.42 ea/1,000 — samples available now.)

Analog Devices , Wilmington , MA
800-262-5643
www.analog.com