Analog Devices Inc. EV1HMC951ALP4

Overview

EV1HMC951ALP4 from Analog Devices is a GaAs MMIC I/Q downconverter operating from 5.6 GHz to 8.6 GHz, delivering 13 dB typical conversion gain, 32 dBc image rejection, and 2 dB typical noise figure. It integrates an LNA, LO buffer amplifier, and image-reject mixer in a single 4 mm × 4 mm LFCSP package, enabling compact SSB receiver front-ends for radar and satellite communications.

For engineers reviewing the EV1HMC951ALP4 datasheet, EV1HMC951ALP4 pinout, EV1HMC951ALP4 application, or EV1HMC951ALP4 equivalent, this page provides verified RF performance data, thermal and isolation specs, IF output interface requirements, and real-world sideband selection guidance using external 90° hybrids.

Technical Context

The EV1HMC951ALP4 implements an integrated I/Q downconversion architecture with a low-noise amplifier followed by an image-reject mixer driven by an on-chip LO buffer amplifier. Its design eliminates the need for post-LNA image filtering by suppressing thermal noise at the image frequency.

IF outputs (IF1 and IF2) are differential quadrature signals requiring an external 90° hybrid to select upper or lower sideband; the device supports both high-side LO (lower sideband) and low-side LO (upper sideband) configurations across its full RF band.

Key Specifications

Pinout & Package

EV1HMC951ALP4 is housed in a 4 mm × 4 mm, 24-lead lead frame chip scale package (LFCSP) with exposed thermal pad. The package supports surface-mount reflow assembly and requires low-impedance RF/dc ground connection to the exposed paddle and designated GND pins.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar I/Q downconverter applications.

Compared with HMC1040LP4E and ADMV1013ACPZ, EV1HMC951ALP4 offers optimal balance of integrated LO buffering, 5.6–8.6 GHz coverage, and 2 dB noise figure - making it the preferred choice for cost-sensitive, thermally constrained X-band radar and SATCOM downconverters where external LO drivers are undesirable.

Availability

EV1HMC951ALP4 is available at Aetrix Electronics and suitable for point-to-point radios, military radar receivers, satellite communication terminals, and electronic warfare systems requiring stable component supply across extended temperature ranges and high-frequency performance consistency.

Supply support for EV1HMC951ALP4 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 aerospace, defense, communications, and industrial markets with precision signal processing solutions.

The HMC951A product line delivers integrated microwave downconverters targeting compact, high-reliability SSB receiver front-ends for radar, SATCOM, and secure wireless infrastructure.

FAQ

What is the recommended LO drive level for EV1HMC951ALP4?

The EV1HMC951ALP4 specifies a nominal LO drive level of 0 dBm, with acceptable range from −4 dBm to +4 dBm. Operating outside this range degrades conversion gain flatness and image rejection; the integrated LO buffer ensures consistent performance across this window without external amplification.

Does EV1HMC951ALP4 require external filtering before the RFIN pin?

No external image filter is required before RFIN due to the device's intrinsic 32 dBc image rejection. However, a bandpass filter centered at 5.6–8.6 GHz is recommended to suppress out-of-band blockers and prevent compression from strong adjacent-channel signals.

How are IF1 and IF2 used to select upper or lower sideband in EV1HMC951ALP4?

EV1HMC951ALP4 outputs I and Q signals on IF1 and IF2. An external 90° hybrid combiner is required to reconstruct the desired sideband: connecting IF1 and IF2 to the hybrid's inputs selects either upper or lower sideband depending on phase orientation and LO injection scheme (high-side vs. low-side).

What is the maximum allowable current draw for EV1HMC951ALP4?

EV1HMC951ALP4 draws 75–85 mA from VDRF and 80–95 mA from VDLO, totaling 155 mA typical at 5 V. Exceeding 5.5 V on either supply risks permanent damage per absolute maximum ratings; thermal design must accommodate θJA = 40.9°C/W.

Can EV1HMC951ALP4 operate with DC-coupled IF outputs?

Yes - EV1HMC951ALP4 supports DC-coupled IF operation, but IF1 and IF2 must not source or sink more than ±3 mA. For AC-coupled use above ~100 kHz, off-chip DC blocking capacitors are recommended to avoid bias disruption and ensure optimal amplitude/phase balance.