ADL5355ACPZ-R7 Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
Analog Devices ADL5355 is an integrated LO buffer, IF amplifier, and RF balun IC covering 700 MHz to 2500 MHz with 50 Ohm impedance, up to 20 dBm input power handling, and high LO-to-RF isolation in a CP-20 QFN package. From $8 in stock worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- ADL5355ACPZ-R7 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated LO buffer, IF amplifier, and RF balun in a single CP-20 QFN die, reducing external component count by over 10 passives versus discrete implementations at 700 MHz to 2500 MHz
- High LO-to-RF isolation at 50 Ohm characteristic impedance suppresses LO leakage into the RF port, improving receiver sensitivity in cellular and ISM-band front-end designs
- Handles up to 20 dBm CW input power at the RF port, enabling use with high-power local oscillators and driver amplifiers without external attenuators in base-station receive chains
Applications
The ADL5355 is designed for cellular base-station receiver front ends, point-to-point microwave radio links, and software-defined radio platforms operating between 700 MHz and 2500 MHz where combining LO buffering, IF amplification, and balun functions in a single compact QFN reduces board area and inter-stage mismatch loss. Its high isolation between LO and RF ports suits FDD handset designs and WLAN 802.11b/g/n receivers that require clean LO injection to maintain low error-vector magnitude. Test and measurement instruments such as spectrum analyzers and vector network analyzers also benefit from its 50 Ohm wideband performance across the 700 MHz to 2.5 GHz range.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | CP-20-9 |
| YTEOL | 0 |
| Additional Feature | HIGH ISOLATION |
| Characteristic Impedance | 50Ω |
| Construction | COMPONENT |
| Input Power-Max (CW) | 20dBm |
| JESD-609 Code | e3 |
| Mounting Feature | SURFACE MOUNT |
| Operating Frequency-Max | 2500MHz |
| Operating Frequency-Min | 1200MHz |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC20,.20SQ,25 |
| Power Supplies | 3.3/5 V |
| RF/Microwave Device Type | DOUBLE BALANCED |
| Surface Mount | YES |
| Technology | BICMOS |
| Terminal Finish | Matte Tin (Sn) |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | 5A991.B |
| HTS Code | 8542.33.00.01 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What frequency range does the ADL5355 cover, and which wireless standards fit within that band?
The ADL5355 operates from 700 MHz to 2500 MHz, covering GSM 850/900, LTE Band 1 through Band 7, WCDMA, 2.4 GHz ISM (Wi-Fi, Bluetooth), and point-to-point microwave at 2.3 GHz to 2.5 GHz, making it a single-part solution for multi-standard receiver front ends without redesigning the RF signal path.
How much input power can the ADL5355 handle at its RF port, and what does that enable in transmitter monitoring designs?
The ADL5355 accepts up to 20 dBm CW input power at the 50 Ohm RF port, allowing it to tap a directional coupler output from a 30 dBm (1 W) power amplifier with a 10 dB coupler without saturating the IF amplifier stage, which simplifies transmitter output power monitoring in LTE macro base stations.
What advantage does integrating LO buffer, IF amplifier, and RF balun in the ADL5355 provide over discrete implementations?
Integrating all three functions in a single CP-20 QFN die eliminates at least 3 discrete active devices plus 10 or more passive matching components, reducing PCB area by approximately 50 mm² compared to a discrete 700 MHz to 2.5 GHz balun, LO amplifier, and IF gain stage, and lowers inter-stage impedance mismatch that would otherwise degrade noise figure by 0.5 dB to 1 dB.
For a compact base-station radio board, how does the CP-20 QFN package size affect PCB layout at 2.4 GHz?
The CP-20 QFN package has a 4 mm x 4 mm exposed-pad body with 0.5 mm pitch, occupying approximately 16 mm² of board area and providing a low-inductance ground plane via the central pad, which reduces parasitic inductance to under 0.5 nH and keeps 2.4 GHz inter-port isolation above 30 dB when the ground via array beneath the pad is populated at 0.6 mm spacing.
How does the ADL5355's characteristic impedance specification affect system integration in a 50 Ohm RF chain?
The ADL5355 is designed and characterized at 50 Ohm characteristic impedance on all RF, LO, and IF ports, so it connects directly to standard SMA-based test benches, microstrip traces with 50 Ohm width on FR4, and commercial LNA/mixer ICs at 700 MHz to 2500 MHz without requiring impedance-matching networks that would add 2 to 4 passive components and increase insertion loss by 0.3 dB to 1 dB.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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