ADI ADG904BRUZ-R

The ADG904 and ADG904-R are wideband analog 4:1 multiplexers that use a CMOS process to provide high isolation and low insertion loss to 1 GHz. The ADG904 is an absorptive/matched mux with 50 Ω terminated shunt legs; the ADG904-R is a reflective mux. These devices are designed such that the isolation is high over the dc to 1 GHz frequency range. The ADG904 and ADG904-R switch one of four inputs to a common output, RFC, as determined by the 3-bit binary address lines A0, A1, and EN (overline). A Logic 1 on the EN pin disables the device.

• Wideband switch: –3 dB @ 2.5 GHz
• ADG904: absorptive 4:1 mux/SP4T
• ADG904-R: reflective 4:1 mux/SP4T
• High off isolation (37 dB @ 1 GHz)
• Low insertion loss (1.1 dB dc to 1 GHz)
• Single 1.65 V to 2.75 V power supply
• CMOS/LVTTL control logic
• 20-lead TSSOP and 4 mm×4 mm LFCSP packages
• Low power consumption (μA maximum)
• Qualified for automotive applications

• Wireless communications
• General-purpose RF switching
• Dual-band applications
• High speed filter selection
• Digital transceiver front end switch
• IF switching
• Tuner modules
• Antenna diversity switching