content here.
content here.

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 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 ...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

    RESOURCES & TOOLS

    What is your task? Try Lead the Way AdvisorTM BETA
    • 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)
    • Switch Type: SP4T
    • Available Packages: CSP,SOP
    • Supply Voltage: Single (+1.65V to +2.75V)
    • Insertion Loss (dB): 0.4dB
    • Bandwidth: 2.5GHz
    • P-1dB (dBm): 16dBm
    • Off Isolation (-dB): 60dB
    • Crosstalk (-dB): 58dB
    • t ON : 8.5ns
    • t OFF: 13ns

    Functional Block Diagram for ADG904

    Similar Products

    arrow View Full Interactive Product Selection Table
    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
    back to top

    * 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

    Print Table
    back to top

    Help

    Model
    The model number is a specific version of a generic that can be purchased or sampled.

    Status
    Status indicates the current lifecycle of the product. This can be one of 4 stages:
    • Pre-Release: The model has not been released to general production, but samples may be available.
    • Production: The model is currently being produced, and generally available for purchase and sampling.
    • Last Time Buy: The model has been scheduled for obsolescence, but may still be purchased for a limited time.
    • Obsolete: The specific part is obsolete and no longer available. Other models listed in the table may still be available (if they have a status that is not obsolete).
    Package Description
    The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

    For detailed drawings and chemical composition please consult our  Package Site

    Pin Count
    Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

    Temperature Range
    This is the acceptable operating range of the device. The various ranges specified are as follows:
    • Commercial: 0 to +70 degrees Celsius
    • Military : -55 to +125 degrees Celsius
    • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
    • Automotive: -40 to +125 degrees Celsius
    Price
    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.

    Production Availability
    This is the date Analog Devices, Inc. anticipates that the product will ship from the warehouse. Most orders ship within 48 hours of this date.Once an order has been placed, Analog Devices, Inc. will send an Order Acknowledgement email to confirm your delivery date. It is important to note the scheduled dock date on the order entry screen. We do take orders for items that are not in stock, so delivery may be scheduled at a future date. Also, please note the warehouse location for the product ordered. We have warehouses in the United States, Europe and Southeast Asia. Transit times from these sites may vary.
    Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.

    RoHS Compliant
    Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

    View PCN
    This is the list of Product Change Notifications (PCN) published on the web for this model. Click on the link to access PCN Information.Only select pre-2009 PCN�s are available on-line. To obtain a pre-2009 PCN, contact your ADI Sales Rep. For more information on ADI's PCN process, please visit our PCN Policy Statement page

    *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.
    **Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.