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Analog Devices Inc. ADG901BRM-500RL7
- Part No.:
- ADG901BRM-500RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- RF Switches
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADG901BRM-500RL7.pdf
- Description:
- IC RF SWITCH SPST 2.5GHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:10,500
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Product details
Overview
ADG901BRM-500RL7 from Analog Devices is an absorptive single-pole single-throw (SPST) RF switch fabricated in CMOS, operating from DC to 4.5 GHz with −3 dB bandwidth, 40 dB off-isolation at 1 GHz, 0.8 dB insertion loss at 1 GHz, and supply voltage range of 1.65 V to 2.75 V. It serves as a matched RF path selector in antenna diversity and transceiver front-end architectures.
For engineers reviewing the ADG901BRM-500RL7 datasheet, ADG901BRM-500RL7 pinout, ADG901BRM-500RL7 application, or ADG901BRM-500RL7 equivalent, key selection criteria include absorptive termination for VSWR-critical source matching, sub-10 ns switching times, 1.65–2.75 V single-supply compatibility, and MSOP-8 package suitability for space-constrained RF modules.
Technical Context
The ADG901BRM-500RL7 implements an absorptive SPST topology with internal 50 Ω shunt terminations on both RF ports, ensuring stable input/output return loss (>25 dB at 1 GHz) regardless of switch state. Its CMOS control logic accepts 1.65–2.75 V logic levels and draws <1 μA quiescent current.
It delivers broadband RF performance: insertion loss remains ≤1.25 dB up to 1 GHz and ≤3.0 dB at 4.5 GHz; off-isolation exceeds 34 dB at 1 GHz and maintains >31 dB across the industrial temperature range (−40°C to +85°C). Video feedthrough is limited to 2.5 mVp-p under fast digital transitions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Switch Type | SPST absorptive (50 Ω terminated RF1/RF2 ports) |
| −3 dB Bandwidth | 4.5 GHz - usable RF path up to this frequency with minimal amplitude roll-off |
| Off Isolation @ 1 GHz | 40 dB typical - suppresses signal leakage between RF1 and RF2 when open |
| Insertion Loss @ 1 GHz | 0.8 dB typical - low attenuation in active path preserves signal integrity |
| Supply Voltage Range | 1.65 V to 2.75 V - compatible with modern low-voltage digital I/O domains |
| Switching Time (tON/tOFF) | 3.6 ns / 5.8 ns typical - supports high-speed time-division multiplexing |
| P−1dB @ 1 GHz | 17 dBm - maximum linear RF power handling before 1 dB gain compression |
| IP3 @ 900 MHz | 36 dBm typical - low intermodulation distortion for multi-tone signals |
Pinout & Package
ADG901BRM-500RL7 uses an 8-lead Mini Small Outline Package (MSOP, RM-8) with exposed pad tied to GND per JEDEC MO-187-AA. Package dimensions: 3.00 mm × 3.00 mm × 1.10 mm max height, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (VDD) | Positive power supply | Must be decoupled to GND with 0.1 μF capacitor; supplies internal CMOS core and RF FET bias |
| 2 (CTRL) | Digital control input | CMOS/LVTTL-compatible; logic high (≥0.65×VDD) connects RF1–RF2, low disconnects with 50 Ω termination |
| 3, 5, 6, 7 (GND) | Ground reference | Four dedicated ground pins minimize RF return path inductance and improve isolation |
| 4 (RF1) | RF input port | 50 Ω matched absorptive port; presents consistent VSWR whether switch is ON or OFF |
| 8 (RF2) | RF output port | 50 Ω matched absorptive port; bidirectional RF path with identical impedance behavior |
Key Features
| Feature | Design Value |
|---|---|
| 50 Ω absorptive termination | Ensures <25 dB return loss on both RF ports in all states-critical for minimizing reflections into sensitive RF sources |
| Ultra-low quiescent current | <1 μA IDD enables battery-powered and energy-sensitive wireless modules without compromising RF performance |
| Sub-10 ns switching | tON = 3.6 ns / tOFF = 5.8 ns allows use in high-speed TDD systems and dynamic filter bank reconfiguration |
| Single 1.65–2.75 V supply | Eliminates need for level shifters when interfacing with 1.8 V or 2.5 V microcontrollers and baseband ICs |
| High linearity (IP3 = 36 dBm) | Supports clean signal routing in multi-carrier LTE/Wi-Fi front ends without generating harmful intermodulation products |
Applications
| Antenna Diversity Switching | Dual-Band Transceiver Front End |
|---|---|
|
Use Scenario: Selecting between two antennas in mobile handsets or IoT gateways to maintain link reliability under fading conditions. IC Role / Device Role / Timing Role: Absorptive SPST switch isolating inactive antenna path while maintaining 50 Ω match on both ports to prevent detuning of active antenna. Use Value: Prevents reflected energy from degrading TRX PA efficiency and ensures consistent system VSWR during real-time antenna switching. |
Use Scenario: Routing RF signals between 2.4 GHz and 5 GHz Wi-Fi bands using shared RF components and discrete filters. IC Role / Device Role / Timing Role: High-isolation RF path selector enabling band-specific filter activation without cross-band coupling. Use Value: Achieves >40 dB isolation between bands to suppress inter-band interference and meet regulatory spectral mask requirements. |
| IF Signal Path Selection | Tuner Module Input Switching |
|
Use Scenario: Dynamically selecting between multiple IF signal chains (e.g., demodulator A vs. B) in software-defined radio receivers. IC Role / Device Role / Timing Role: Low-insertion-loss absorptive switch preserving SNR in analog IF paths while blocking crosstalk between parallel channels. Use Value: Maintains <0.8 dB insertion loss and >34 dB isolation at 1 GHz IF frequencies to avoid desensitization of adjacent channel receivers. |
Use Scenario: Switching between terrestrial (DVB-T) and satellite (DVB-S) tuner inputs in set-top boxes or broadcast receivers. IC Role / Device Role / Timing Role: RF front-end switch providing matched 50 Ω interface to tuner ICs and external antenna connectors. Use Value: Delivers stable return loss (>25 dB) on both ports to prevent tuner LO pulling and ensure consistent noise figure across input selections. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar RF SPST switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG901BRMZ-REEL7 | Same die, Pb-free (RoHS-compliant) MSOP-8 package with S1T branding; identical electrical specs and timing | No functional difference; selected when lead-free compliance is mandatory for final product certification | Drop-in replacement if RoHS compliance required; same footprint, thermal profile, and layout |
| ADG901BCP-500RL7 | LFCSP-8 (3 mm × 3 mm) package instead of MSOP-8; same absorptive architecture and RF specs but lower θJA (48°C/W on 4-layer board) | Better thermal performance in high-density RF modules; requires different land pattern and reflow profile | Preferred for thermally constrained designs where MSOP-8 self-heating limits continuous RF power handling |
Compared with ADG901BRM-500RL7, ADG901BRMZ-REEL7 offers identical RF performance with RoHS compliance, while ADG901BCP-500RL7 provides superior thermal dissipation in compact layouts-neither is pin-compatible without PCB revision due to differing package footprints.
Availability
ADG901BRM-500RL7 is available at Aetrix Electronics and suitable for wireless communications infrastructure, antenna diversity modules, and dual-band transceiver front ends requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for ADG901BRM-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, Inc. is a global leader in high-performance analog, mixed-signal, and RF ICs, serving precision instrumentation, communications, and industrial markets since 1965.
The ADG901BRM-500RL7 belongs to Analog Devices' wideband RF switch family, designed specifically for low-voltage, high-isolation, absorptive switching in portable and infrastructure wireless systems.
FAQ
What is the function of the ADG901BRM-500RL7 in an RF signal chain?
The ADG901BRM-500RL7 functions as an absorptive SPST RF switch that routes or blocks RF signals between two 50 Ω ports (RF1 and RF2) under digital control. Its internal 50 Ω terminations ensure matched impedance in both ON and OFF states, making ADG901BRM-500RL7 ideal for minimizing reflections in sensitive RF sources like power amplifiers and tuners.
Does the ADG901BRM-500RL7 require external matching components?
No, the ADG901BRM-500RL7 does not require external matching components. It integrates 50 Ω shunt terminations on both RF1 and RF2 ports, delivering >25 dB return loss from DC to 1 GHz. This absorptive architecture eliminates the need for external resistors or matching networks, simplifying layout and reducing bill-of-materials cost for ADG901BRM-500RL7 implementations.
What is the maximum RF input power the ADG901BRM-500RL7 can handle linearly?
The ADG901BRM-500RL7 has a P−1dB of 17 dBm at 1 GHz, meaning it maintains linear operation up to approximately 50 mW RF input power before insertion loss increases by 1 dB. At higher frequencies, P−1dB decreases-e.g., 10 dBm at 2.5 GHz-so design margins must account for frequency-dependent compression in ADG901BRM-500RL7 applications.
Can the ADG901BRM-500RL7 operate from a 1.8 V supply?
Yes, the ADG901BRM-500RL7 operates fully across 1.65 V to 2.75 V, including standard 1.8 V logic rails. At 1.8 V, it maintains 40 dB off-isolation at 1 GHz and 0.85 dB insertion loss, with CTRL logic thresholds scaling to 0.65×VDD (1.17 V) for high and 0.35×VDD (0.63 V) for low-ensuring robust interfacing with 1.8 V microcontrollers in ADG901BRM-500RL7 systems.
How does the ADG901BRM-500RL7 differ from the ADG902 series?
The ADG901BRM-500RL7 is an absorptive switch with 50 Ω terminations on both RF ports, ensuring stable VSWR in all states. In contrast, the ADG902 is reflective with 0 Ω shunts to ground, resulting in poor OFF-state VSWR. This makes ADG901BRM-500RL7 mandatory for applications requiring minimal source reflection-such as PA output switching-where ADG902 would cause instability or gain ripple.
ADG901BRM-500RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- RF Type:
- General Purpose
- Topology:
- Absorptive
- Circuit:
- SPST
- Frequency Range:
- DC ~ 2.5GHz
- Isolation:
- 37dB
- Insertion Loss:
- 0.8dB
- Test Frequency:
- 1GHz
- P1dB:
- 17dBm
- IIP3:
- 36dBm
- Features:
- -
- Impedance:
- 50Ohm
- Voltage - Supply:
- 1.65V ~ 2.75V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
ADG901BRM-500RL7 FAQ
1.How can I place an order for ADG901BRM-500RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADG901BRM-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 ADG901BRM-500RL7 reliable?
The price and inventory of ADG901BRM-500RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADG901BRM-500RL7 is usually 5 days.
3.What payment methods are accepted for ADG901BRM-500RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADG901BRM-500RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADG901BRM-500RL7?
ADG901BRM-500RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADG901BRM-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 ADG901BRM-500RL7?
For technical support, including ADG901BRM-500RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADG901BRM-500RL7 requirements.
6.How does Aetrix verify that ADG901BRM-500RL7 is sourced from the original manufacturer or authorized distributors?
All ADG901BRM-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 ADG901BRM-500RL7 meets industry standards.
7.What is the process for return or replacement of ADG901BRM-500RL7?
All ADG901BRM-500RL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADG901BRM-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 ADG901BRM-500RL7 part is unused and in its original packaging.
Return procedure for ADG901BRM-500RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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