Analog Devices Inc. ADRF5250BCPZ

Overview

ADRF5250BCPZ from Analog Devices is a silicon-based nonreflective SP5T RF switch operating from 0.1 GHz to 6 GHz, delivering 1.5 dB insertion loss and 50 dB isolation at 4 GHz, with 34 dBm P0.1dB compression and 57 dBm IP3 - deployed in cellular infrastructure front-ends for antenna switching between five RF paths.

For engineers reviewing the ADRF5250BCPZ datasheet, ADRF5250BCPZ pinout, ADRF5250BCPZ application, or ADRF5250BCPZ equivalent, this page provides verified RF performance specs, 24-pin LFCSP package mapping, thermal derating guidance, and validated alternatives for multi-path wireless transceiver designs.

Technical Context

The ADRF5250BCPZ implements a single-pole, five-throw architecture with internal 50 Ω termination on all off-state RFx ports and dc-coupled RFC/RF1–RF5 interfaces. Its integrated negative voltage generator enables single-supply operation (3.3 V to 5 V) when VSS = 0 V, or dual-supply mode (VSS = −3.3 V) with reduced supply current.

Control uses a 3-bit 1.8 V logic-compatible interface (V1 = LSB, V3 = MSB) supporting six states including All Off and five individual RF path selections. Switching is bidirectional, with 150 ns on/off time and 400 ns 0.1 dB settling time, optimized for hot-switching up to 27 dBm at 85°C case temperature.

Key Specifications

Pinout & Package

ADRF5250BCPZ is housed in a 4 mm × 4 mm, 24-lead lead frame chip scale package (LFCSP) with an exposed thermal pad requiring connection to RF/dc ground. The package supports reflow per JEDEC MO-220-WGGD-6 and MSL3 rating.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SP5T RF switch applications.

Compared with QM11036 and SKY13418-485LF, the ADRF5250BCPZ delivers superior 50 dB isolation and integrated NVG for single-supply operation across full 0.1–6 GHz bandwidth - making it optimal for high-density, thermally demanding infrastructure front-ends where signal integrity and layout simplicity are prioritized.

Availability

ADRF5250BCPZ is available at Aetrix Electronics and suitable for cellular infrastructure, wireless test equipment, and mobile radio applications requiring stable component supply, extended temperature operation, and high RF reliability.

Supply support for ADRF5250BCPZ 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 ADRF5250BCPZ belongs to Analog Devices' high-frequency silicon RF switch product line, engineered for broadband infrastructure applications demanding wideband linearity, thermal resilience, and nonreflective signal routing.

FAQ

What is the maximum RF input power the ADRF5250BCPZ can handle at 85°C case temperature?

The ADRF5250BCPZ supports 33 dBm maximum RF input power on the through path and 27 dBm on the terminated path at 85°C case temperature. These ratings assume proper thermal management via the exposed pad and adequate PCB copper area. Exceeding these levels risks permanent degradation of linearity and isolation performance in the ADRF5250BCPZ.

Does the ADRF5250BCPZ require external matching components for 50 Ω operation?

No, the ADRF5250BCPZ features internal 50 Ω matching at all RF ports (RFC and RF1–RF5), eliminating the need for external baluns, stubs, or discrete matching networks across its 0.1–6 GHz operating range. This simplifies PCB layout and improves repeatability in high-volume manufacturing of ADRF5250BCPZ-based systems.

How does the internal negative voltage generator (NVG) affect supply current in the ADRF5250BCPZ?

When VSS = 0 V, the ADRF5250BCPZ enables its internal NVG and draws 360 µA from VDD. When VSS = −3.3 V, the NVG is disabled and VDD current drops to 280 µA, while ISS draws −60 µA from the negative rail. This dual-mode operation allows system-level trade-offs between supply complexity and quiescent power in ADRF5250BCPZ designs.

Can the ADRF5250BCPZ be used in bidirectional signal paths?

Yes, the ADRF5250BCPZ is fully bidirectional: RF signals may be applied to RFC with output at any selected RFx port, or vice versa. Its nonreflective architecture ensures consistent 1.5 dB insertion loss and 50 dB isolation regardless of signal direction - a key requirement for TDD systems using ADRF5250BCPZ in shared antenna architectures.

What is the recommended PCB grounding strategy for the ADRF5250BCPZ exposed pad?

The exposed pad of the ADRF5250BCPZ must be soldered to a solid RF/dc ground plane using ≥9 thermal vias (0.3 mm diameter, spaced ≤1 mm apart) directly beneath the pad. This configuration achieves <0.5 Ω thermal resistance and maintains return path integrity for all 13 GND pins - essential for preserving ADRF5250BCPZ isolation and EMI performance above 3 GHz.