Variable Gain Amplifiers (VGA)
Variable gain amplifiers (VGAs) are used in a variety of remote sensing and communications equipment. Variable gain amplifiers deliver unmatched performance for signal chains that require high dynamic range. Applications ranging from ultrasound, radar, LIDAR, wireless communications, and speech analysis have utilized VGAs to deliver industry leading performance.
Subcategories
Product Selection Table
Latest Resources
Application Notes
- AN-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs (Rev. 0) PDF
- AN-669: Effectively Applying the AD628 Precision Gain Block (Rev. 0) PDF
- AN-589: Ways to Optimize the Performance of a Difference Amplifier (Rev. B) PDF
- Designing with the AD8338 (Rev. AN-1192) PDF
- AN-934: 60 dB Wide Dynamic Range, Low Frequency AGC Circuit Using a Single VGA (Rev. 0) PDF
Technical Articles
Product Selection Guide
Circuit Note
Technical Books
Design Tools
Solutions Bulletins & Brochures
Webcasts
- Explaining Phase Noise
- Solving the Elusive Baseband to Antenna Problem using RFDAC Technology
- Developing Multiple-Input Multiple-Output (MIMO) Systems with the AD9361
- Fundamentals of Frequency Synthesis, Part 1: Phased Locked Loops
- Solutions for Fitting High Performance RF Signal Chains into Small Spaces
Videos
- ADA4355: High-speed Photodetector Receiver μModule®
- 16 Channel Tx/Rx S-Band Phased Array RADAR Platform
- LT8365 High-Voltage Micropower Boost/SEPIC/Inverting Converter
- ADI's Modular LIDAR Prototyping Platform Reduces Time to Market
- From ADAS to Full Autonomy with Analog Devices
Tutorials
Frequently Asked Questions
- What is input voltage range and how is it determined?
- How does the input bias current of an amplifier affect my circuit?
- My reference voltage changes when I connect it to the amplifier's input?
- What are Variable Gain Amplifiers (VGA's) and how are they used?
- What is the output headroom or voltage range of an amplifier and how is it determined?