ADG904:  Wideband 2.5 GHz, 37 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T

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 ...More

ADG904:  Wideband 2.5 GHz, 37 dB Isolation at 1 GHz, CMOS 1.65 V to 2.75 V, 4:1 Mux/SP4T

Product Description

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. A Logic 1 on the EN pin disables the device.

The parts have on-board CMOS control logic, which eliminates the need for external control circuitry. The control inputs are both CMOS and LVTTL compatible. The low power consumption of these devices makes them ideally suited for wireless applications and general-purpose high frequency switching.

Product Highlights

  1. −37 dB off isolation @ 1 GHz
  2. 1.1 dB insertion loss @ 1 GHz
  3. 20-lead TSSOP/LFCSP packages

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
  • Data Sheet, Rev. B, 2/07

    Features

    • 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 (1 μA maximum)

    Diagrams

    ADG904 Diagram
    Functional Block Diagram for ADG904

    Explore Other Products

    Part# Switch Type Supply Voltage Insertion Loss (dB) Bandwidth P-1dB (dBm) Off Isolation (-dB) Crosstalk (-dB) t ON t OFF Cd OFF (pF) Available Packages Product Description Price* (1000-4999)
    ADG901 SPST Single (+1.65V to +2.75V) 0.8 4.5GHz 17 37 n/a 3.6ns 5.8ns 1.6 CSP, SOP Wideband, 37 dB Isolation @ 1GHz, 1.65 V to 2.75 V, SPST, Absorptive (Matched) Analog CMOS Switch $0.98
    ADG902 SPST Single (+1.65V to +2.75V) 0.8 4.5GHz 17 37 n/a 3.6ns 5.8ns 1.6 CSP, SOP Wideband, 37 dB Isolation @ 1GHz, 1.65 V to 2.75 V, SPST, Reflective Analog CMOS Switch $0.98
    ADG918 SPDT Single (+1.65V to +2.75V), Single (+2.5V) 0.8 4GHz 17 43 33 6.6ns 6.5ns 1.6 CSP, SOP Wideband, 43dB Isolation @ 1GHz, 1.65V to 2.75V, SPDT/2:1 Mux, Absorptive Analog CMOS Switch $1.03
    ADG919 SPDT Single (+1.65V to +2.75V) 0.8 4GHz 17 43 33 6.6ns 6.5ns 1.6 CSP, SOP Wideband, 43dB Isolation @ 1GHz, 1.65V to 2.75V, SPDT/2:1 Mux, Reflective Analog CMOS Switch $1.03
    ADG936 SPDT Single (+1.65V to +2.75V) 0.9 4GHz 16 60 69 11ns 10ns n/a CSP, SOP Wideband, 4 GHz, 36 dB Isolation @ 1 GHz, CMOS, 1.65 V to 2.75 V, Dual SPDT Switch $1.46

    * The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
    ** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

    Pricing, Packaging & Availability

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    The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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