Analog Devices Inc. ADL5723-EVALZ

Overview

ADL5723-EVALZ from Analog Devices is an evaluation board designed to characterize the ADL5723 10.1–11.7 GHz low-noise amplifier (LNA), supporting single-ended 50 Ω RF input and differential 100 Ω outputs, with on-board 1.8 V and 3.3 V LDO regulators, and optimized for microwave radio link receiver testing at +25°C ambient.

For engineers reviewing the ADL5723-EVALZ datasheet, ADL5723-EVALZ pinout, ADL5723-EVALZ application, or ADL5723-EVALZ equivalent, this page provides verified board-level specifications, power configuration options, RF interface layout guidance, and integration details for SATCOM, phased array, and instrumentation signal chain validation.

Technical Context

The ADL5723-EVALZ implements the ADL5723 SiGe LNA in a fully populated, impedance-matched layout featuring 3×4 thermal vias beneath the exposed pad, 5 V input conversion to regulated 1.8 V (VCC1) and 3.3 V (VCC2), and RF input/output connectors compatible with 10.1–11.7 GHz operation.

It supports differential output measurement via integrated 180° hybrid interface points (RFOP/RFON), includes configurable RBIAS termination (442 Ω default), and provides jumper-selectable band configuration (P1) while maintaining <10 dB input/output return loss across the full frequency band.

Key Specifications

Availability

ADL5723-EVALZ is available at Aetrix Electronics and suitable for microwave radio link development, satellite communications (SATCOM) receiver prototyping, and phased array front-end validation requiring stable component supply, traceable sourcing, and documented evaluation board performance.

Supply support for ADL5723-EVALZ 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 digital signal processing semiconductors, headquartered in Norwood, MA, serving precision instrumentation, communications, and aerospace markets since 1965.

The ADL5723-EVALZ belongs to Analog Devices' microwave LNA evaluation platform family, engineered specifically to accelerate RF receiver design for 10–12 GHz applications including point-to-point radios and electronic warfare systems.

FAQ

What is the primary function of the ADL5723-EVALZ?

The ADL5723-EVALZ is a fully assembled evaluation board for the ADL5723 low-noise amplifier, enabling rapid RF performance validation-including gain, noise figure, and linearity-at 10.1–11.7 GHz. It integrates power regulation, impedance-matched RF interfaces, and thermal management to replicate real-world deployment conditions for the ADL5723 device.

Does the ADL5723-EVALZ require external power supplies?

No-the ADL5723-EVALZ operates from a single +5 V DC supply. On-board ADM7170ACPZ-1.8 and ADM7172ACPZ-3.3 LDO regulators generate the precise 1.8 V (VCC1) and 3.3 V (VCC2) rails required by the ADL5723 IC. The board draws ~111 mA total at 5 V, matching datasheet quiescent current sums.

How is differential output measured using the ADL5723-EVALZ?

The ADL5723-EVALZ provides dedicated RFOP and RFON test points for the ADL5723's 100 Ω differential outputs. Users connect these to a 180° hybrid within the 10.1–11.7 GHz band; the hybrid's difference port feeds a spectrum analyzer while its sum port is terminated to 50 Ω-enabling true differential gain and noise figure measurement per ADL5723-EVALZ lab setup guidelines.

Can the ADL5723-EVALZ be used with other LNA variants like ADL5721 or ADL5725?

No-the ADL5723-EVALZ is specifically laid out and calibrated for the ADL5723 IC, including its unique 442 Ω RBIAS value, thermal pad footprint, and RF matching network. While ADL5721/ADL5725 share the same LFCSP package, their bias requirements, gain profiles, and frequency centers differ; using them on this board would invalidate published performance data for the ADL5723-EVALZ.

What RF connectors are fitted on the ADL5723-EVALZ?

The ADL5723-EVALZ uses standard SMA connectors: one for the single-ended 50 Ω RF input (RFIN), and two for differential output access (RFOP and RFON test points). These are positioned for minimal trace length and consistent 50 Ω routing, aligning with the ADL5723's specified input/output impedances and enabling repeatable lab measurements without de-embedding.