Analog Devices Inc. 115195-HMC536LP2

Overview

115195-HMC536LP2 from Analog Devices (formerly Hittite Microwave) is a GaAs MMIC SPDT T/R switch for RF front-end signal routing in transceiver architectures. It operates from DC to 6 GHz, delivers 0.6 dB typical insertion loss at DC–3 GHz, 27 dB isolation (RFC to RF1/RF2), and +33 dBm P0.1dB at +5 V control-enabling high-linearity cellular base station and WiMAX access point designs.

For engineers reviewing the 115195-HMC536LP2 datasheet, 115195-HMC536LP2 pinout, 115195-HMC536LP2 application, or 115195-HMC536LP2 equivalent, key selection criteria include its positive-control logic (0/+3V or 0/+5V), 2×2 mm DFN LP2 package with exposed ground paddle, DC-coupled 50 Ω RF ports requiring external blocking capacitors, and guaranteed performance across –40°C to +85°C.

Technical Context

The 115195-HMC536LP2 implements a monolithic GaAs MMIC architecture with integrated bias circuitry enabling single-supply positive voltage control without external level-shifting. Its SPDT T/R topology routes RF between a common RFC port and either RF1 or RF2 under complementary A/B logic states, supporting full-duplex transceiver switching with DC coupling and no internal bias tees.

It features on-chip termination for control inputs (25 μA typical current draw), 33 ns rise/fall time, and 70 ns turn-on/turn-off delay-optimized for fast-agile wireless infrastructure timing. Thermal design relies on soldering pins 2, 4, 6 and the exposed bottom paddle directly to PCB RF ground to maintain ≤75 °C/W junction-to-board thermal resistance.

Key Specifications

Pinout & Package

115195-HMC536LP2 uses a 6-pin 2×2 mm leadless DFN LP2 package (4 mm² footprint) with an exposed metal ground paddle on the bottom requiring solder connection to PCB RF ground. All RF pins (RFC, RF1, RF2) are DC-coupled and internally matched to 50 Ω; external DC-blocking capacitors are mandatory per application schematic.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SPDT T/R switch applications.

Compared with HMC547LP3E and QM11036, the 115195-HMC536LP2 offers optimal balance of size (2×2 mm), linearity (+54 dBm IP3), and DC–6 GHz coverage for space-constrained cellular/WiMAX infrastructure-making it preferred where thermal density, broadband fidelity, and compact layout are jointly prioritized.

Availability

115195-HMC536LP2 is available at Aetrix Electronics and suitable for cellular infrastructure, fixed wireless access, and RF test instrumentation requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for 115195-HMC536LP2 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 acquired Hittite Microwave in 2014 and maintains its high-frequency RF portfolio for communications, defense, and instrumentation markets.

The 115195-HMC536LP2 belongs to the Hittite GaAs MMIC Switch family, engineered for high-linearity, low-loss RF signal routing in wireless infrastructure and test equipment where DC coupling, positive control, and thermal robustness are essential.

FAQ

What is the recommended DC-blocking capacitor value for 115195-HMC536LP2 RF ports?

For 115195-HMC536LP2, use 100 pF 0402 ceramic capacitors at each RF port (RFC, RF1, RF2) as specified in the evaluation PCB BOM. This value supports operation down to 5 MHz while maintaining impedance integrity; lower values may compromise low-frequency response, and higher values increase series inductance and degrade >3 GHz performance.

Does 115195-HMC536LP2 require external bias tees?

No, 115195-HMC536LP2 does not require external bias tees because all RF ports are DC-coupled and internally matched to 50 Ω. However, external DC-blocking capacitors are mandatory to prevent control voltage leakage and ensure proper DC isolation between RF stages in the signal chain.

What is the maximum operating temperature for continuous operation of 115195-HMC536LP2?

The 115195-HMC536LP2 is rated for continuous operation from –40°C to +85°C ambient. At +85°C, derating applies: maximum continuous power dissipation drops to 0.86 W, with thermal resistance of 75 °C/W requiring full ground paddle soldering to maintain safe junction temperature below 150°C.

Can 115195-HMC536LP2 operate with only +3 V control voltage?

Yes, 115195-HMC536LP2 fully supports +3 V control voltage (0/+3 V logic), delivering +29 dBm P0.1dB and +52 dBm IP3 across 1–3 GHz. Its on-chip bias circuitry draws only 25 μA typical at +3 V, making it compatible with low-power microcontrollers and FPGA I/O banks without additional drivers.

How is the exposed ground paddle on 115195-HMC536LP2 connected in PCB layout?

The exposed ground paddle on 115195-HMC536LP2 must be soldered to a solid, low-impedance RF ground plane using ≥4 thermal vias (0.3 mm diameter, spaced evenly). Per datasheet, pins 2, 4, 6 and the paddle must all connect directly to ground-failure to do so degrades isolation, increases thermal resistance, and risks exceeding 150°C channel temperature under full RF load.