MAX4819 - Maxim Integrated Products

MAX4819 High-Bandwidth T1/E1 Dual-SPDT Switches/4:1 Muxes

The MAX4818/MAX4819 high-bandwidth, low-on-resistance analog dual SPDT switches/4:1 multiplexers are designed to serve as integrated T1/E1 protection switches for 1+1 and N+1 line-card redundancy applications. Each MAX4818/MAX4819 replaces four electromechanical relays, significantly reducing board space, simplifying PC board routing, and reducing power cons.

Features

♦ Dual SPDT and 4:1 Multiplexer Configurations ♦ Dual-Supply Operation from ±3.3V to ±5V ♦ Single-Supply Operation from +6V to +11V ♦ Hot-Insertion Tolerant with No DC Path to the Supplies ♦ Low On-Resistance, RON = 4Ω (typ) and 6Ω (max) ♦ Over 350MHz -3dB Signal Bandwidth (MAX4818) ♦ Excellent Crosstalk and Off-Isolation Performance Over the T1/E1 Signal Spectrum: Over 110dB Crosstalk Attenuation at 1MHz (MAX4818) ♦ Low Current Consumption of 2mA (max) ♦ -40°C to +85°C Extended Temperature Range ♦ Space-Saving, 16-Pin, 5mm x 5mm Thin QFN ♦ SET Controls All Switches Simultaneously For Redundan.