Ad603sq
Overview
Product sourcing insights & recommendations


I have researched the AD603SQ (specifically the military-grade AD603SQ-883B) variable gain amplifier IC. While direct wholesale listings for this specific military part number are rare on consumer B2B platforms, I have identified relevant distributors and market insights.
Product Identification & Technical Specs
The AD603SQ-883B is a high-performance, low-noise variable gain amplifier (VGA) from Analog Devices Mouser.
- Key Specs: 90 MHz bandwidth, 31.3 dB voltage gain, and a CDIP-8 package Mouser.
- RoHS Status: Non-Compliant (Standard for many military-grade/883B components) Mouser.
- Datasheet: Available via Mouser's technical library Mouser.
Sourcing & Price Benchmarks
Direct listings for the "SQ" (Military) grade are limited. Most suppliers on Alibaba offer the commercial AD603AR or AD603AQ variants, or modules built around the AD603 IC.
- Price Range: AD603 modules on Alibaba range from $19.00 to $28.80 AlibabaAlibaba. Individual ICs in commercial grade (like AD8331) are significantly cheaper (~$0.10) Alibaba.
- MOQ: Typically 1–5 units for modules and 10+ units for bulk ICs AlibabaAlibaba.
- Availability: Most verified electronics distributors in Shenzhen carry the AD603 series but require a direct quote for the military-grade SQ version AlibabaAlibaba.
Global Demand Trends
- Market Growth: The global variable gain amplifier (VGA) market is projected to grow from $1.63 billion in 2025 to over $3 billion by 2034, at a CAGR of ~8.7% TheinsightpartnersDataintelo.
- Key Drivers: Demand is driven by advancements in RF communications, medical imaging (ultrasound), and radar systems where high-precision signal amplitude control is critical AnalogErsaelectronics.
Detailed lists of compatible products and suppliers are available in the attached files.
I have found the technical specifications and several general distributors for you. Would you like to:
Ad603sq Variable Gain Amplifier Ic
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Sources & References
27 sources cited · Verified industry data & reports

Programmable and Variable Gain Amplifiers Market Size, ...
The Insight Partners
The Programmable and Variable Gain Amplifiers Market size is expected to reach US$ 3.09 Billion by 2034 from US$ 1.63 Billion in 2025.

Programmable & Variable Gain Amplifiers Market
LinkedIn · Web Wire Trends Daily
The Programmable & Variable Gain Amplifiers Market is projected to grow from USD 1.2 billion in 2024 to 2.19 Billion USD by 2033, ...

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Analog Devices
Variable gain amplifiers (VGAs) are used in a variety of remote sensing and communications equipment. Variable gain amplifiers deliver unmatched performance ...

Programmable & variable gain amplifiers (PGAs & VGAs)
TI.com
We offer a wide range of variable and programmable gain amplifiers capable of improving the dynamic range of a circuit with the ability to adjust the amplitude ...

Digital Variable Gain Amplifier Market Research Report 2034
Dataintelo
Digital Variable Gain Amplifier market valued at $1.12 billion in 2025, projected to reach $2.37 billion by 2034, growing at 8.7% CAGR.
Variable Gain Amplifier (VGA) ICs: Types & Guide
Ersa Electronics
What is a Variable Gain Amplifier (VGA)? Explore types, key specs, and IC uses in RF, audio, radar, and medical systems.
