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Analog Devices Inc. ADG918BCP-500RL7
- Part No.:
- ADG918BCP-500RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Switches
- Package:
- 8-WFDFN Exposed Pad, CSP
- Datasheet:
-
ADG918BCP-500RL7.pdf
- Description:
- IC SWITCH SPDT 2:1 MUX 8LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:19,085
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Product details
Overview
ADG918BCP-500RL7 from Analog Devices is a wideband 2:1 RF multiplexer / SPDT switch optimized for high-isolation signal routing in wireless transceivers and tuner modules. It delivers 43 dB off-isolation at 1 GHz, 0.8 dB insertion loss at 1 GHz, and operates from a single 1.65 V to 2.75 V CMOS supply. Its absorptive architecture ensures matched 50 Ω termination on shunt legs, enabling low-reflection switching in antenna diversity and T/R front-end applications.
For engineers reviewing the ADG918BCP-500RL7 datasheet, ADG918BCP-500RL7 pinout, ADG918BCP-500RL7 application, or ADG918BCP-500RL7 equivalent, key selection criteria include its 4 GHz −3 dB bandwidth, sub-10 ns switching times, 17 dBm P−1 dB compression point at 1 GHz, and LFCSP package compatibility with high-density RF layouts.
Technical Context
The ADG918BCP-500RL7 implements an absorptive (matched) SPDT topology with internal 50 Ω terminations on RF1 and RF2 shunt paths, ensuring stable VSWR across both on- and off-states. Its on-chip CMOS/LVTTL-compatible control logic eliminates external level-shifting circuitry.
It supports dc–4 GHz operation with guaranteed 43 dB isolation at 1 GHz (CP package), 0.8 dB insertion loss at 1 GHz, and 28.5–36 dBm IP3 - critical for minimizing intermodulation distortion in dual-band cellular and ISM-band systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| −3 dB Bandwidth | 4 GHz - enables full coverage of LTE Bands 1–40, Wi-Fi 2.4/5 GHz, and Bluetooth 5.0 without roll-off. |
| Off Isolation @ 1 GHz | 43 dB (typ) - suppresses coupling between transmit and receive paths in T/R switch applications. |
| Insertion Loss @ 1 GHz | 0.8 dB (typ) - preserves signal integrity and minimizes gain budget loss in RF front ends. |
| Supply Voltage Range | 1.65 V to 2.75 V - compatible with modern low-voltage SoC I/O domains and battery-powered IoT devices. |
| Switching Time (tON/tOFF) | 6.6 ns / 6.5 ns (typ) - supports fast time-division duplex (TDD) and dynamic filter reconfiguration. |
| P−1 dB @ 1 GHz | 17 dBm (typ) - handles typical PA output levels in metering and short-range wireless transceivers. |
| IP3 @ 900 MHz | 28.5 dBm (min) - limits third-order intermodulation products in multi-carrier environments. |
Pinout & Package
ADG918BCP-500RL7 uses an 8-lead Lead Frame Chip Scale Package (LFCSP), 3 mm × 3 mm body, 0.75 mm height, with exposed pad tied to ground per JEDEC MO-229-WEED standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Positive power supply | Must be decoupled to GND with 0.1 µF capacitor; supplies internal CMOS logic and RF switch core. |
| CTRL (Pin 2) | Digital control input | CMOS/LVTTL-compatible; logic high selects RF1→RFC path, logic low selects RF2→RFC path. |
| GND (Pins 3, 6, 7) | Ground reference | All three pins must be connected to low-impedance system ground; exposed pad also requires grounding for thermal and RF performance. |
| RFC (Pin 4) | Common RF port | 50 Ω-terminated RF output/input; connects to antenna, PA, or LNA in T/R or diversity configurations. |
| RF2 (Pin 5) | RF input/output port 2 | 50 Ω-terminated; used for secondary signal path (e.g., diversity antenna or alternate filter). |
| RF1 (Pin 8) | RF input/output port 1 | 50 Ω-terminated; primary signal path (e.g., main antenna or transmit chain). |
Key Features
| Feature | Design Value |
|---|---|
| Absorptive (matched) architecture | Internal 50 Ω shunt terminations ensure ≤20 dB return loss on all ports regardless of switch state - critical for source/load matching in sensitive RF stages. |
| Ultra-low quiescent current | <1 µA IDD - enables always-on switching in battery-operated wireless sensors and utility meters without compromising runtime. |
| High linearity (IP3 & P−1 dB) | 28.5 dBm min IP3 and 17 dBm P−1 dB - maintains signal fidelity in multi-tone FDD/TDD systems with minimal distortion. |
| Sub-10 ns switching speed | 6.5 ns tOFF, 6.6 ns tON - supports rapid channel hopping, TDD guard interval management, and real-time filter bank selection. |
| Small-footprint LFCSP | 3 mm × 3 mm, 0.75 mm height - reduces PCB area and parasitic inductance vs. MSOP, improving GHz-range RF performance. |
Applications
| Antenna Diversity Switching | Transmit/Receive Front-End |
|---|---|
Use Scenario: Selecting between two physically separated antennas in mobile handsets or IoT gateways to mitigate fading. IC Role / Device Role / Timing Role: Absorptive SPDT switch routing RF signals between antennas and common RFC port while maintaining 50 Ω match on all ports. Use Value: 43 dB isolation prevents cross-coupling between antennas; low 0.8 dB insertion loss preserves SNR and link margin. | Use Scenario: Isolating PA output from LNA input in half-duplex transceivers (e.g., ADF7020-based utility meters). IC Role / Device Role / Timing Role: T/R switch controlling signal direction on shared antenna port using CTRL logic to toggle RF1 (TX) or RF2 (RX) to RFC. Use Value: Absorptive design prevents reflected energy from damaging PA or desensitizing LNA; 6.6 ns tON enables tight TDD timing. |
| Tuner Module Input Selection | High-Speed Filter Bank Switching |
Use Scenario: Switching between cable TV and over-the-air antenna inputs in digital TV tuners. IC Role / Device Role / Timing Role: RF multiplexer selecting one of two broadband signal sources to feed the tuner IC's RF input stage. Use Value: 4 GHz bandwidth covers entire DVB-C/DVB-T spectrum; 43 dB isolation prevents ingress from unused input. | Use Scenario: Dynamically routing IF or RF signals among multiple bandpass filters in software-defined radios. IC Role / Device Role / Timing Role: 2:1 MUX enabling real-time filter reconfiguration under microcontroller control. Use Value: Sub-10 ns switching allows filter changes within symbol periods; low video feedthrough (2.5 mV p-p) avoids baseband corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF SPDT switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG919BCPZ-REEL7 | Reflective (0 Ω shunt) architecture; 37 dB isolation @ 1 GHz (CP package); higher crosstalk. | Suitable where off-port VSWR is not critical (e.g., filter selection), but not recommended for antenna or T/R switching requiring low reflections. | Select ADG919BCPZ-REEL7 only when cost or legacy design favors reflective topology and source matching is managed externally. |
| Qorvo QM11036 | 0.5–6 GHz bandwidth; 45 dB isolation @ 2.4 GHz; 0.5 dB IL @ 2.4 GHz; GaAs process; 1.8 V supply. | Better high-frequency isolation and lower loss above 2 GHz, but higher supply voltage and no 1.65 V support. | Choose QM11036 for Wi-Fi 6/6E front ends needing >2.4 GHz performance; retain ADG918BCP-500RL7 for sub-2 GHz low-voltage, low-power designs. |
Compared with ADG919BCPZ-REEL7 and QM11036, ADG918BCP-500RL7 uniquely balances ultra-low supply voltage (1.65 V), absorptive matching, and 4 GHz bandwidth - making it optimal for battery-powered, reflection-sensitive RF routing where layout space and power efficiency are constrained.
Availability
ADG918BCP-500RL7 is available at Aetrix Electronics and suitable for wireless metering, antenna diversity systems, and digital TV tuner modules requiring stable component supply across industrial temperature ranges (−40°C to +85°C).
Supply support for ADG918BCP-500RL7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices is a global leader in high-performance analog, mixed-signal, and RF ICs, serving precision instrumentation, communications, and industrial markets since 1965.
The ADG918 belongs to Analog Devices' RF Switches product line, engineered specifically for low-distortion, high-isolation signal routing in compact, low-power wireless infrastructure and consumer RF front ends.
FAQ
What is the operating temperature range for ADG918BCP-500RL7?
The ADG918BCP-500RL7 is rated for industrial operation from −40°C to +85°C, as confirmed in the Ordering Guide and Absolute Maximum Ratings table of Rev. E datasheet. This range applies to both electrical performance specifications and reliability validation, supporting deployment in outdoor metering, automotive infotainment, and industrial wireless sensor nodes where ambient temperatures fluctuate widely.
Does ADG918BCP-500RL7 require external matching components?
No, ADG918BCP-500RL7 does not require external matching components. Its absorptive architecture integrates 50 Ω terminations on RF1 and RF2 shunt legs, delivering ≥16 dB return loss on all ports across dc–1 GHz. This eliminates discrete matching networks in most 50 Ω systems, reducing bill-of-materials count and layout complexity while preserving broadband performance.
How does ADG918BCP-500RL7 differ from ADG919 in RF behavior?
ADG918BCP-500RL7 is an absorptive switch with 50 Ω shunt terminations, ensuring good VSWR on all ports regardless of state. ADG919 is reflective with 0 Ω shunts to ground, yielding higher off-isolation in some bands but poor off-port VSWR. The ADG918BCP-500RL7 is preferred for antenna and T/R switching where reflections must be minimized; ADG919 suits filter selection where off-port impedance is buffered.
What is the maximum RF input power ADG918BCP-500RL7 can handle?
ADG918BCP-500RL7 has a 1 dB compression point (P−1 dB) of 17 dBm at 1 GHz and an absolute maximum input power rating of 18 dBm (per Absolute Maximum Ratings). At 0 dBm input, it delivers 0.8 dB insertion loss; operation above 17 dBm causes measurable gain compression and increased distortion, limiting use to moderate-power front-end switching rather than PA output stages.
Is ADG918BCP-500RL7 pin-compatible with ADG918BRMZ-500RL7?
No, ADG918BCP-500RL7 (LFCSP, CP-8-13) is not pin-compatible with ADG918BRMZ-500RL7 (MSOP, RM-8). While both share identical functionality and truth table, their land patterns, pin numbering, and thermal pad configuration differ per Figures 4 and 5 in the datasheet. PCB redesign is required when migrating between packages; however, schematic symbol and control logic remain identical.
ADG918BCP-500RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad, CSP
- Packaging:
- Bulk
- Product Status:
- Obsolete
- RF Type:
- General Purpose
- Topology:
- Absorptive
- Circuit:
- SPDT
- Frequency Range:
- -
- Isolation:
- -
- Insertion Loss:
- -
- Test Frequency:
- -
- P1dB:
- 17dBm
- IIP3:
- 36dBm
- Features:
- -
- Impedance:
- -
- Voltage - Supply:
- 1.65V ~ 2.75V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-LFCSP (3x3)
ADG918BCP-500RL7 FAQ
1.How can I place an order for ADG918BCP-500RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADG918BCP-500RL7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADG918BCP-500RL7 reliable?
The price and inventory of ADG918BCP-500RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADG918BCP-500RL7 is usually 5 days.
3.What payment methods are accepted for ADG918BCP-500RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADG918BCP-500RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADG918BCP-500RL7?
ADG918BCP-500RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADG918BCP-500RL7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADG918BCP-500RL7?
For technical support, including ADG918BCP-500RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADG918BCP-500RL7 requirements.
6.How does Aetrix verify that ADG918BCP-500RL7 is sourced from the original manufacturer or authorized distributors?
All ADG918BCP-500RL7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADG918BCP-500RL7 meets industry standards.
7.What is the process for return or replacement of ADG918BCP-500RL7?
All ADG918BCP-500RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADG918BCP-500RL7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADG918BCP-500RL7 part is unused and in its original packaging.
Return procedure for ADG918BCP-500RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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