In the design of electronic systems—from automotive control units to industrial sensors and consumer devices—operational amplifiers (op-amps) serve as the "heart" of signal conditioning, amplification, and filtering. ROHM Semiconductor, a global leader in semiconductor innovation with over 70 years of expertise, delivers a comprehensive portfolio of operational amplifiers engineered for low power consumption, high precision, and robust performance across extreme environments. Covering general-purpose, automotive-grade, and specialty op-amps, ROHM’s products meet the stringent requirements of automotive, industrial, medical, and IoT applications. To ensure genuine procurement, stable inventory, and professional technical support, ROHM partners with top-tier authorized distributors worldwide, enabling seamless access to these critical components.
Core Product Lines & Technical Advantages
ROHM’s operational amplifiers stand out for their tailored performance, reliability, and compliance with industry standards, catering to diverse application needs:
1. General-Purpose Operational Amplifiers (BA Series)
The BA series is ROHM’s flagship line of general-purpose op-amps, trusted for its balance of performance and cost-effectiveness. Key offerings include:
BA328: Low-power dual op-amp with 1.8V to 12V wide supply voltage range, 1.2mA total quiescent current, and rail-to-rail output. Ideal for consumer electronics (audio devices, wearables) and IoT sensors requiring long battery life.
BA728: High-gain (100dB) single op-amp with low offset voltage (≤5mV) and wide bandwidth (1MHz), suitable for signal amplification in industrial control systems and medical devices.
LMV321: Ultra-compact single op-amp in SOT-23 package, featuring 2.7V to 5.5V supply voltage, 0.5mA quiescent current, and rail-to-rail input/output. Perfect for space-constrained designs like portable electronics and IoT modules.
2. High-Precision Operational Amplifiers (OPA Series)
For applications demanding ultra-low noise and high accuracy, ROHM’s OPA series delivers industry-leading performance:
OPA2376: High-precision dual op-amp with 10µV max offset voltage, 0.1µV/℃ drift, and 10MHz bandwidth. Compliant with industrial standards, it excels in sensor signal conditioning, data acquisition systems, and medical equipment (e.g., blood glucose monitors).
OPA847: Low-noise (3.5nV/√Hz) op-amp with 1GHz gain-bandwidth product, designed for high-speed signal amplification in test equipment and communication systems.
3. Automotive-Grade Operational Amplifiers (AEC-Q100 Certified)
ROHM’s automotive op-amps meet the harsh requirements of vehicle environments, with AEC-Q100 qualification (Grade 1: -40℃ to 125℃):
BD8766GUL: Automotive-grade dual op-amp with 4.5V to 18V supply voltage, 2.8mA quiescent current, and robust EMC performance. Used in engine control units (ECUs), ADAS sensors, and in-vehicle infotainment systems.
BD7750GUL: Rail-to-rail input/output op-amp with over-temperature protection, ideal for automotive battery management systems (BMS) and chassis control modules.
4. Specialty Operational Amplifiers
Low-Power IoT Op-amps: Devices like the BA5200 with 0.3mA quiescent current and 1.5V supply voltage, optimized for battery-powered IoT sensors and wearables.
Wide-Temperature Op-amps: Op-amps with operating ranges from -40℃ to 150℃, suitable for industrial automation and automotive under-hood applications.
Global Authorized Distributors for ROHM Operational Amplifiers
To source genuine ROHM op-amps (BA series, OPA series, automotive-grade models) with official warranty, technical support, and stable inventory, partner with the following authorized distributors. Each specializes in ROHM semiconductor supply, offering tailored services for prototype development, small-batch orders, and mass production:
Global Core Authorized Distributors
Arrow Electronics (艾睿电子)
Global coverage for ROHM’s full op-amp portfolio, with dedicated teams for automotive and industrial applications. Provides inventory management, technical consulting, and localized support across Asia-Pacific, Europe, and North America.
Contact: Global Tech Support - [email protected]; China Office (Shanghai) - 021-58886666 (specialized in ROHM automotive op-amps).
Mouser Electronics (贸泽电子)
NPI-focused authorized distributor with immediate stock of ROHM op-amps (BA328, OPA2376, LMV321). Offers 100% certified genuine products, fast global shipping, and free technical resources (datasheets, evaluation kits).
Contact: 24/7 Global Support - +1 (800) 346-6873; Hong Kong Office - +852 2803 7700 (supports sample requests for op-amp testing).
Avnet (安富利)
Authorized distributor for ROHM automotive and industrial op-amps, specializing in end-to-end solutions for automotive ECUs and industrial control systems. Offers BOM matching and supply chain optimization.
Contact: Global Sales - [email protected]; China Office (Shanghai) - 021-23218888 (AEC-Q100 op-amp compliance support).
Digi-Key Electronics
Global authorized distributor with a large selection of ROHM operational amplifiers, supporting from prototype to mass production. Provides online inventory query and full manufacturer traceability.
Contact: Global 24/7 Support - +1 (800) 344-4539; Europe Office - +44 (191) 482-1777.
Asia-Pacific Regional Authorized Distributors
WPG Holdings (大联大)
Greater China’s leading distribution group, authorized ROHM partner covering op-amps for automotive, industrial, and consumer electronics. Offers localized technical support and fast delivery.
Contact: China Office (Taipei) - +886-2-2792-6666; Shenzhen Branch - 0755-8366-3888.
Weikeng Technology (威健)
Greater China-based core distributor, with ample stock of ROHM general-purpose and automotive op-amps. Provides genuine product verification and bulk order benefits.
Contact: Phone - 0755-8282-8888; Address: Shenzhen, Guangdong.
Renesas Electronics Distribution (瑞萨电子分销)
Japan-based authorized distributor, specializing in ROHM automotive op-amps for Japanese automakers. Offers technical consulting and supply chain support.
Contact: Japan Office - +81-3-3344-5111
