Overview
Features and Benefits
- Wideband switch: −3 dB at 4 GHz
- Absorptive/reflective switches
- High off isolation (43 dB at 1 GHz)
- Low insertion loss (0.8 dB at 1 GHz)
- Single 1.65 V to 2.75 V power supply
- CMOS/LVTTL control logic
- 8-lead MSOP and tiny 3 mm × 3 mm LFCSP
- Low power consumption (<1 µA)
Product Details
The ADG918/ADG919 are wideband switches using a CMOS process to provide high isolation and low insertion loss to 1 GHz. The ADG918 is an absorptive (matched) switch having 50 Ω terminated shunt legs, whereas the ADG919 is a reflective switch. These devices are designed such that the isolation is high over the dc to 1 GHz frequency range. They have on-board CMOS control logic, thus eliminating the need for external controlling circuitry. The control inputs are both CMOS and LVTTL compatible. The low power consumption of these CMOS devices makes them ideally suited to wireless and general-purpose high frequency switching applications.
Product Highlights
- −43 dB off isolation at 1 GHz.
- 0.8 dB insertion loss at 1 GHz.
- Tiny 8-lead MSOP/LFCSP.
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
Product Lifecycle
Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
Documentation & Resources
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AN-952: ADG9xx Wideband CMOS Switches: Frequently Asked Questions (Rev. 0)2/14/2015PDF162 kB
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RF, Microwave, and Millimeter Wave Product Selection Guide7/13/2018PDF9M
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Choosing the Correct Switch or Multiplexer for Your Application8/17/2009PDF756 kB
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Switches and Multiplexers Product Selection Guide5/9/2008PDF614 K
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CN-0211: IF Band-Pass Filter Bank Switching Network for Wireless Infrastructure6/13/2012PDF245 kB
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Ask The Application Engineer—34: Wideband CMOS Switches10/1/2004 Analog Dialogue
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CMOS Switches Offer High Performance in Low Power, Wideband Applications2/1/2004
Tools & Simulations
LTspice
LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Models for the following parts are available in LTspice:
S-Parameters
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.
Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
---|---|---|---|---|
ADG918BCPZ-500RL7 | Material Declaration | Reliability Data | 8-Lead LFCSP (3mm x 3mm w/ EP) | |
ADG918BCPZ-REEL7 | Material Declaration | Reliability Data | 8-Lead LFCSP (3mm x 3mm w/ EP) | |
ADG918BRMZ | Material Declaration | Reliability Data | 8-Lead MSOP | |
ADG918BRMZ-500RL7 | Material Declaration | Reliability Data | 8-Lead MSOP | |
ADG918BRMZ-REEL | Material Declaration | Reliability Data | 8-Lead MSOP | |
ADG918BRMZ-REEL7 | Material Declaration | Reliability Data | 8-Lead MSOP | |
Wafer Fabrication Data |
PCN-PDN Information
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Support & Discussions
ADG918 Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
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Sampling
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Evaluation Boards
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.