RF VGAs, IF VGAs and variable gain control products from Analog Devices offer the high performance needed for communications, instrumentation, and military designs. The portfolio includes continuous analog linear-in-dB products based on X-Amp™ interpolation architectures and digital step controlled products providing as fine as 0.25 dB step and linear in volts digital control. Furthermore, our RF VGAs are highly integrated with digitally controlled multi-pole analog filters integrated on-chip as well as AGC circuits for automatic level control.
Basics on VGAs
FAQ: Variable Gain Amplifiers
Tutorials & Webcasts
Solutions for Fitting High Performance RF Signal Chains into Small Spaces
This webinar will present the current state of integration of RF IC technology, with a focus on the challenges that non-handset-based wireless equipment designers face as they strive for more functionality in smaller spaces, sometimes with the added headache of having to implement broadband transceivers that can be reused at multiple frequencies.
RF VGAs Technical Articles
The Differential-signal Advantage for Communications System Design
Understand how differential signal chains and architectures can improve system performance in challenging applications. (RF Designline, 2/1/2010)
Direct Conversion Receiver Designs Enable Multi-standard/Multi-band Operation
Modern direct conversion provides a compelling solution for field programmable radio designs and offers a cost benefit and potential performance advantage over traditional receiver solutions. (RF Designline, 2/16/2009)
Linear-in-dB Variable Gain Amplifier Provides True RMS Power Measurements
by Eric Newman and Stephen Lee, Analog Devices, Inc. (Wireless Design 2004)
Integrated VGA Aids Precise Gain Control (pdf, 194 kB)
by Phillip Halford and Eamon Nash, Analog Devices, Inc. (Microwaves & RF, March 2002)
Analog Front End for 3G Femto Base Stations Bring Wireless Connectivity Home
X-amp, A New 45-dB, 500-MHz Variable-Gain Amplifier (VGA) Simplifies Adaptive Receiver Designs
(Analog Dialogue, Vol. 36, No. 1, January-February, 2002)
Brochures & Bulletins
Analog-to-Digital Converter and Driver ICs
Data Sheets
Parametric Search
Tools
ADIsimRF™
Video: ADIsimRF™
ADIsimPLL™
Video: ADIsimPLL™
S-Parameters
ADL5201 S-Parameters (zip, 1.29 MB)
ADL5240 S-Parameters (zip, 98.2 KB)
ADL5202 S-Parameters (zip, 2.60 MB)
ADL5243 S-Parameters (zip, 178 KB)
ADL5534 S-Parameters Rev A (zip, 23.2 KB)
ADL5531 S-Parameters (zip, 10.4 KB)
ADL5322 S-Parameters (zip, 32.2 KB)
ADL5321 S-Parameters (zip, 31.4 KB)
ADL5523 S-Parameters (zip, 5.54 KB)
ADL5521 S-Parameters (zip, 5.52 KB)
ADL5542 S-Parameters (zip, 43.3 KB)
ADL5541 S-Parameters (zip, 43 KB)
ADL5391 S-Parameters (zip, 309 KB)
ADL5390 S-Parameters (zip, 152 KB)
ADL5323 S-Parameters (zip, 32.3 KB)
Selection Table
EngineerZone Support Community
Circuits from the Lab
CN-0140: High Performance, Dual Channel IF Sampling Receiver
CN-0082: Creating a Constant Envelope Signal Using the ADL5331 RFVGA and AD8319 Log Detector
CN-0072: Extending the Dynamic Range of the ADL5513 Logarithmic Detector Using the AD8368 Variable Gain Amplifier
CN-0050: Stable, Closed-Loop Automatic Power Control for RF Applications
CN-0002: Using the AD8376 VGA to Drive Wide Bandwidth ADCs for High IF AC-Coupled Applications
RF VGAs Application Notes
AN-1098: Methodology for Narrow-Band Interface Design Between High Performance Differential Driver Amplifiers and ADCs (pdf, 167 KB)
AN-0974: Multicarrier TD-SCMA Feasibility (pdf, 634 KB)
AN-808: Multicarrier CDMA2000 Feasibility (pdf, 1535 KB)
The goal of this application note is to determine the feasibility of implementing a multicarrier CDMA2000 transceiver and what the major subsystem performances must be.
AN-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs (pdf, 203 KB)
AN-772: A Design and Manufacturing Guide for the Lead Frame Chip Scale Package (LFCSP) (pdf, 439 KB)
AN-826: A 2.4 GHz WiMAX Direct Conversion Transmitter (pdf, 417 KB)
The Analog Filter Wizard™ helps you design a low-pass, high-pass, band-pass or band-stop filter with actual op amps. It then simulates the filter’s performance with these op amps in real time. You can ask the tool to optimize for power, noise, or voltage range, and it will pick op amps and passive components appropriately. Or you can adjust the components manually yourself.
The photodiode web tool helps you select and design the best circuit for your application. To use the tool, enter the specifications of your light input, including intensity, spectral band, and the required signal bandwidth. These inputs will narrow down the available photodiode part numbers.
View all tools available for Analog Devices' Amplifiers products.
Search, compare and select products using our parametric selection tables.
The ADIsimADC tool is an aid to help in the selection of Analog to Digital Converterse (ADC's), perform evaluations and assist with troubleshooting. The tool uses typical data values to mathematically model the general behavior of the selected ADC. It allows a user to apply input signals, set encode (sample) rates and simulate FFT's on a selected ADC. It is useful for checking the SNR, SFDR, SINAD, THD, ENOB etc. of a selected ADC.
ADIsimDAC assists the user with finding Analog Devices' DACs and DAC Application Circuits. It takes user inputs along Typical Parametric Data to sort, select and suggest applicable DAC's, system components and circuit solutions.
View all tools available for Analog Devices' Data Converters products.
Search, compare and select products using our parametric selection tables.
ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded Gain, Noise Figure, IP3 and P1dB as well as total power consumption are calculated. The number of stages can be varied up to a maximum of 15. Additional stages can be inserted at any point in teh signal chain and individual stages can be temporarily disabled or deleted. The calculator can be switched between Transmit Mode and Receive Mode where calculations are presented output-referred and input-referred respectively.
The ADIsimPLL design tool is a comprehensive and easy-to-use PLL synthesizer design and simulation tool. All key non-linear effects that can impact PLL performance can be simulated, including phase noise, Fractional-N spurs, and anti-backlash pulse. ADIsimPLL design tool eliminates time-consuming iterations from the PLL/synthesizer development process.
View all tools available for Analog Devices' RF ICs.
Search, compare and select products using our parametric selection tables.
ADIsimPower™ Voltage Regulator Design Tool produces custom DC-DC converter designs in about one minute. The user enters 5 inputs and chooses to optimize for efficiency, PCB space, cost, or part count. Output is a complete schematic, BOM, efficiency plot, and performance summary. A PDF summary and a blank PCB is offered for each design to facilitate fast prototyping to verify the design.
ADI's digital PWM (pulse-width modulation) power control and management devices provide designers with a highly integrated circuit architecture and the flexibility to configure system power-supply parameters in a matter of minutes using an intuitive GUI (graphical user interface). Power design egnineers with no prior programming experience can use the GUI to monitor and quickly adjust power functions such as frequency, timing, voltage settings, and protection limits.
View all tools available for Analog Devices' Power Management products.
Search, compare and select products using our parametric selection tables.
| Part# | Gain Control | RF Frquency Range (MHz) | Gain Accuracy | Output IP3 | Spectral Noise | Gain (min) | Gain (max) | Noise Figure (dB) | Min Pos Supply | Max Pos Supply | Supply Current | Package | US Price 1000-4999 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ADRF6518 | Analog | 350MHz | - | 37dBm | - | -36dB | 66dB | - | - | - | 400mA | 32-Lead CSP | ** |
| ADL5201 | Digital | 700MHz | - | 50dBm | - | -11.5dB | 20dB | 7.5dB | 4.5V | 5.5V | 110mA | 24-Lead LFCSP |
$ |
| ADL5202Reference Circuit Available | Digital | 700MHz | - | 50dBm | - | -11.5dB | 20dB | 7.5dB | 4.5V | 5.5V | 210mA | 40-Lead LFCSP |
$ |
| ADL5565Reference Circuit Available | Analog | 6GHz | 1dB | 54dBm | 1.52(nV/rtHz) | 0dB | 15.5dB | 8.7dB | 2.8V | 5.2V | 80mA | 16-Lead LFCSP |
$ |
| ADL5336Reference Circuit Available | Analog | 1GHz | 100mdB | 28dBm | - | -14.6dB | 19.5dB | 7.1dB | 4.5V | 5.5V | 80mA | 32-Lead CSP |
$ |
| AD8366 | Digital | 600MHz | - | 38dBm | - | 4.5dB | 20.25dB | 11.4dB | 4.75V | 5.25V | 180mA | 32-Lead CSP |
$ |
| ADRF6516 | Analog | 31MHz | 200mdB | 35dBm | - | -5dB | 45dB | - | 3.15V | 3.45V | 360mA | 32-Lead CSP |
$ |
| ADRF6510Reference Circuit Available | Analog | 30MHz | - | 27dBm | - | -5dB | 45dB | - | 4.75V | 5.25V | 258mA | 32-Lead CSP |
$ |
| ADL5561 | Analog | 2.9GHz | - | 49dBm | 2.1(nV/rtHz) | 6dB | 15.5dB | 8dB | 3V | 3.6V | 40mA | 16-Lead LFCSP |
$ |
| ADL5562Reference Circuit Available | Analog | 3.3GHz | - | 47dBm | 2.1(nV/rtHz) | 6dB | 15.5dB | 7.3dB | 3V | 3.6V | 80mA | 16-Lead LFCSP |
$ |
| AD8372 | Digital | 130MHz | 300mdB | 35dBm | - | -9dB | 32dB | 7.9dB | 4.5V | 5.5V | 212mA | 32-Lead CSP |
$ |
| AD8375 | Digital | 630MHz | 200mdB | 50dBm | 1.9(nV/rtHz) | -4dB | 20dB | 8.3dB | 4.5V | 5.5V | 125mA | 24-Lead LFCSP |
$ |
| AD8376Reference Circuit Available | Digital | 700MHz | 200mdB | 50dBm | 2(nV/rtHz) | -4dB | 20dB | 8.7dB | 4.5V | 5.5V | 250mA | 32-Lead CSP |
$ |
| AD8368Reference Circuit Available | Analog | 800MHz | 400mdB | 33dBm | - | -12dB | 22dB | 9.5dB | 4.5V | 5.5V | 60mA | 24-Lead LFCSP |
$ |
| AD8370 | Digital | 750MHz | - | 35dBm | 2.1(nV/rtHz) | -11dB | 34dB | 7.2dB | 3V | 5.5V | 79mA | 16-Lead TSSOP |
$ |
| AD8369 | Digital | 600MHz | 500mdB | 19.5dBm | 2(nV/rtHz) | -5dB | 40dB | 7dB | 3V | 5.5V | 37mA | 16-Lead TSSOP |
$ |
| AD8367 | Analog | 500MHz | 200mdB | 36.5dBm | 1.84(nV/rtHz) | -2.5dB | 42.5dB | 6.2dB | 2.7V | 5.5V | 26mA | 14-Lead TSSOP |
$ |
| Part# | Gain Control | RF Frquency Range (MHz) | Gain (min) | Gain (max) | Noise Figure (dB) | 1 dB Comp Point (dBm) | Output IP3 | Max Pos Supply | Supply Current | Package | US Price 1000-4999 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ADL5240 | Digital | 4GHz | -13.1dB | 18dB | 2.9dB | 19.5dBm | 41dBm | 5.25V | 93mA | 32-Lead CSP |
$ |
| ADL5243 | Digital | 4GHz | -1.2dB | 31.3dB | 2.9dB | 26dBm | 41.1dBm | 5.25V | 175mA | 32-Lead CSP |
$ |
| ADL5331Reference Circuit Available | Analog | 1.2GHz | -14dB | 17dB | 9dB | - | 47dBm | 5.25V | 240mA | 24-Lead LFCSP |
$ |
| ADL5592 | Digital | 2.4GHz | -52.1dB | 8.9dB | 4.8dB | - | 29dBm | 5.5V | 189mA | 40-Lead LFCSP |
$ |
| ADL5330Reference Circuit Available | Analog | 3GHz | -32dB | 21dB | 9dB | 1.3dBm | 31.5dBm | 5.25V | 215mA | 24-Lead LFCSP |
$ |
| ADL5390 | Analog | 2.4GHz | -30dB | 5dB | 21dB | 8.5dBm | 23.3dBm | 5.25V | 135mA | 24-Lead LFCSP |
$ |
| AD8340 | Analog | 1GHz | -32dB | -2dB | - | 11dBm | 24dBm | 5.25V | 130mA | - |
$ |
| AD8341 | Analog | 2.4GHz | -34.5dB | -4.5dB | - | 8.5dBm | 17.5dBm | 5.25V | 125mA | 24-Lead LFCSP |
$ |
| Part# | Gain Control | Output IP3 | Number of Channels | RF Frquency Range (MHz) | Max Pos Supply | Supply Current | Supply Voltage (V) | Voltage Supply (V) | Gain (min) | Gain (max) | US Price 1000-4999 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ADRF6518 | - | 37dBm | 2 | 350MHz | - | 400mA | 3.3V | - | -36dB | 66dB | ** |
| ADRF6516 | Analog | 35dBm | 2 | 31MHz | 3.45V | 360mA | - | - | -5dB | 45dB |
$ |
| ADRF6510Reference Circuit Available | Analog | 27dBm | 2 | 30MHz | 5.25V | 258mA | 5.25V | - | -5dB | 45dB |
$ |
