Analog Devices Inc. ADL6316ACCZ-R7

Overview

ADL6316ACCZ-R7 from Analog Devices is a 500–1000 MHz transmit variable gain amplifier (VGA) designed to interface RF DACs and transceivers with power amplifiers in FDD/TDD LTE base stations. It integrates a differential-to-single-ended balun, two high-linearity amplifiers, a 20.5 dB voltage-variable attenuator (VVA), and a 14 dB digital step attenuator (DSA) with 0.45 dB resolution. Key confirmed specs include 31.1 dB gain at 869 MHz, +25.05 dBm OP1dB, and 5.85 dB noise figure.

For engineers reviewing the ADL6316ACCZ-R7 datasheet, ADL6316ACCZ-R7 pinout, ADL6316ACCZ-R7 application, or ADL6316ACCZ-R7 equivalent, this page delivers verified functional architecture, SPI-programmable gain control paths, thermal design guidance for the LGA package, and real-world linearity trade-offs across VVA/DSA attenuation modes - all critical for LTE transmitter signal chain optimization.

Technical Context

The ADL6316ACCZ-R7 implements a dual-stage RF signal chain: differential RF input passes through an integrated balun and quadrature hybrid before entering the VVA, followed by Amplifier 1, then the 5-bit DSA (0.45 dB steps), and finally Amplifier 2. All blocks are programmable via a 4-wire SPI interface supporting up to 25 MHz clock rate with double-buffered register writes to prevent carrier glitches.

Gain control is implemented through two independent paths: a 12-bit on-chip DAC driving the VVA (20.5 dB range, 386.8 ns min→max settling) and external analog voltage on VVA_ANALOG (Pin 30); the DSA provides fast 14 dB attenuation (195 ns max→min settling). The device operates from a single 5 V supply and includes temperature sensing and bias tee support for direct RF DAC interfacing.

Key Specifications

Pinout & Package

ADL6316ACCZ-R7 uses a 38-terminal, 10.5 mm × 5.5 mm LGA package (CC-38-1) with dual exposed thermal pads (EPAD1/EPAD2) requiring solder connection to PCB ground for electrical integrity and thermal dissipation (θJC = 7.6°C/W).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar transmit VGA applications.

Compared with ADL6316ACCZ-R7, ADL6317ACCZ-R7 shifts operational bandwidth upward while preserving pin compatibility and feature set, whereas HMC997LP5E trades integration for broader frequency coverage and higher gain-making ADL6316ACCZ-R7 optimal for cost-sensitive, thermally constrained 700/800/900 MHz LTE deployments.

Availability

ADL6316ACCZ-R7 is available at Aetrix Electronics and suitable for 4G LTE base station transmitters, massive MIMO radio units, private LTE infrastructure, and 5G NR sub-6 GHz test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing.

Supply support for ADL6316ACCZ-R7 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.

The ADL6316ACCZ-R7 belongs to Analog Devices' transmit VGA product line, engineered specifically for high-dynamic-range RF signal chains in wireless infrastructure - emphasizing integration of baluns, hybrids, and programmable attenuation to reduce external component count in LTE/5G baseband-to-RF interfaces.

FAQ

What is the operating frequency range of the ADL6316ACCZ-R7?

The ADL6316ACCZ-R7 operates from 500 MHz to 1000 MHz, covering key LTE bands including Band 12/13/14 (700 MHz), Band 5/8 (850/900 MHz), and Band 40 (2.3 GHz downconverted paths). This range is validated across gain, OIP3, and noise figure specifications in the datasheet, with performance characterized at 620 MHz, 869 MHz, and 960 MHz.

How is gain controlled on the ADL6316ACCZ-R7?

The ADL6316ACCZ-R7 supports dual-path gain control: a 20.5 dB voltage-variable attenuator (VVA) controllable either by an internal 12-bit DAC (via Registers 0x104/0x103) or external analog voltage on Pin 30 (VVA_ANALOG), plus a 14 dB digital step attenuator (DSA) with 0.45 dB resolution controlled via Bits[4:0] of Registers 0x102 or 0x112. Both paths are independently programmable over SPI.

Does the ADL6316ACCZ-R7 require external matching components at RF ports?

No - the ADL6316ACCZ-R7 integrates a broadband balun for differential-to-single-ended conversion and quadrature hybrids at both input and output, enabling direct 50 Ω interface to RF DACs and PAs. Return loss is specified at −17.5 dB (input) and −25.0 dB (output) at 869 MHz, eliminating need for external matching networks in standard layouts.

What power supply requirements does the ADL6316ACCZ-R7 have?

The ADL6316ACCZ-R7 operates from a single 5 V supply (4.75–5.25 V) applied to V50AMP1 (Pin 13) and V50AMP2 (Pin 17). It draws 435 mA in high-performance mode and 310 mA in low-power mode. V33FUSE (Pin 15) requires 0.1 µF + 1 µF decoupling for the internal 3.3 V LDO regulator bypass.

Is the ADL6316ACCZ-R7 pin-compatible with other devices in the ADL63xx family?

The ADL6316ACCZ-R7 shares identical pinout and package (CC-38-1 LGA) with ADL6317ACCZ-R7, differing only in RF frequency range (500–1000 MHz vs. 1500–3000 MHz). No PCB changes are required when migrating between these two variants, though RF matching networks must be redesigned to suit the target band.