Analog Devices Inc. ADG936BCP-R-500RL7

Overview

ADG936BCP-R-500RL7 from Analog Devices is an absorptive dual SPDT RF switch optimized for high-isolation, low-loss signal routing up to 4 GHz. It operates from 1.65 V to 2.75 V, delivers 36 dB off-isolation at 1 GHz and 0.9 dB insertion loss at 1 GHz, and features CMOS/LVTTL-compatible control logic. It is used in antenna diversity switching and dual-band transceiver front ends.

For engineers reviewing the ADG936BCP-R-500RL7 datasheet, ADG936BCP-R-500RL7 pinout, ADG936BCP-R-500RL7 application, or ADG936BCP-R-500RL7 equivalent, key selection criteria include its absorptive architecture (50 Ω terminated shunt legs), 20-lead LFCSP package, −40°C to +85°C industrial temperature range, and suitability for ISM-band wireless systems requiring minimal RF reflection.

Technical Context

The ADG936BCP-R-500RL7 implements two independent SPDT switches fabricated in a CMOS process, with matched 50 Ω terminations on all shunt legs to ensure stable VSWR across both on- and off-states. Its absorptive design eliminates reflected energy at off ports, enabling clean signal routing in sensitive RF paths without external termination.

On-chip CMOS control logic accepts 1.65 V–2.75 V digital inputs compatible with both CMOS and LVTTL levels, eliminating external level-shifting circuitry. Switching times are tightly controlled - t_ON ≤ 14 ns and t_OFF ≤ 13 ns - supporting high-speed reconfiguration in time-division duplex (TDD) systems and fast filter bank selection.

Key Specifications

Pinout & Package

ADG936BCP-R-500RL7 is housed in a 4 mm × 4 mm, 20-lead LFCSP_WQ (CP-20-6) package with exposed pad tied to GND. This thermally enhanced lead-frame chip-scale package provides low θ_JA = 30.4°C/W on 4-layer boards, supporting compact RF layout and reliable power dissipation in dense PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with ADG936BCP-R-500RL7, ADG918BRMZ-REEL7 reduces channel count but retains identical RF performance per switch, while QM11036TR13 trades absorptive convenience for extended bandwidth and power handling - requiring careful impedance management in PCB layout.

Availability

ADG936BCP-R-500RL7 is available at Aetrix Electronics and suitable for antenna diversity switching, tuner module signal routing, and dual-band transceiver front ends requiring stable component supply across automotive infotainment, industrial wireless sensors, and consumer broadband equipment.

Supply support for ADG936BCP-R-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 ADG9xx family was designed specifically for wideband, low-distortion RF switching in ISM-band and sub-1 GHz wireless systems - prioritizing absorptive matching, low voltage operation, and seamless integration with digital baseband controllers.

FAQ

What is the difference between ADG936BCP-R-500RL7 and ADG936BCPZ-RL7?

The ADG936BCP-R-500RL7 and ADG936BCPZ-RL7 share identical electrical specifications and LFCSP package, but differ in ordering designation: "-R" denotes the absorptive version (ADG936), while "-R-500RL7" specifies reel quantity (500 units) and tape-and-reel packaging. Both are absorptive dual SPDT switches with 50 Ω terminations; the "Z" suffix indicates RoHS compliance, which applies to both variants per Analog Devices' standard manufacturing.

Does ADG936BCP-R-500RL7 require external DC blocking capacitors?

No, ADG936BCP-R-500RL7 does not require external DC blocking capacitors on its RF ports. Its internal CMOS architecture and 50 Ω matched design allow direct AC-coupled or DC-coupled RF signal routing. The datasheet explicitly states "no requirement for dc blocking capacitors" as a key system-level benefit, simplifying front-end design and reducing bill-of-materials count.

Can ADG936BCP-R-500RL7 operate from a 1.8 V supply?

Yes, ADG936BCP-R-500RL7 is fully specified to operate from 1.65 V to 2.75 V, including 1.8 V. At 1.8 V, insertion loss remains ≤1.25 dB at 1 GHz and off-isolation stays ≥31 dB, meeting all key RF specs. Digital inputs maintain CMOS/LVTTL compatibility, with VINH = 0.65 × VDD and VINL = 0.35 × VDD thresholds ensuring robust logic recognition.

What is the thermal resistance (θ_JA) of ADG936BCP-R-500RL7 in its LFCSP package?

The ADG936BCP-R-500RL7 in the 4 mm × 4 mm LFCSP (CP-20-6) package has a junction-to-ambient thermal resistance (θ_JA) of 30.4°C/W when mounted on a 4-layer PCB with proper thermal vias to internal ground planes. This value assumes the exposed pad is soldered to a solid GND plane - a mandatory layout requirement per the datasheet Pin Configurations section to ensure RF stability and thermal reliability.

Is ADG936BCP-R-500RL7 pin-compatible with ADG936BRU-500RL7?

No, ADG936BCP-R-500RL7 is not pin-compatible with ADG936BRU-500RL7. They share identical functionality and logic, but differ in package: ADG936BCP-R-500RL7 uses the 20-lead LFCSP (CP-20-6), while ADG936BRU-500RL7 uses the 20-lead TSSOP (RU-20). Pin numbering and physical layout differ significantly - see Figures 5 and 6 in the datasheet - requiring separate PCB footprints and layout validation.