New Product Recommendation: Zhongwei Aixin has launched its μA‑class series of operational amplifiers, offering an alternative to imported components.
Introduction
In battery-powered applications such as IoT sensing, portable instruments, smart terminals, and industrial low-frequency data acquisition, low quiescent current, appropriate bandwidth, stable load capability, and compact form factor have become core design requirements. Zhongwei Aixin microampere A series of operational amplifiers featuring microamp-level quiescent current, wide supply voltage compatibility, and input… / Rail-to-rail output and robust drive capability deliver a cost-effective, domestically produced solution for low-voltage, low-power signal conditioning, enabling seamless replacement of imported components.
Product model
Zhongwei Aixin microampere Class operation amplifier coverage AiP861x、AiP863x、AiP865x、 AiP927x Four major series, quiescent current 5 μA ~ 45 μA/CH , balancing low power consumption with response speed to meet diverse bandwidth requirements:
AiP861x Series: Quiescent Current 5 μA/CH , gain-bandwidth product 150kHz , the ideal choice for balancing low power consumption with common bandwidth requirements
AiP863x Series: Quiescent Current 18 μA/CH , gain-bandwidth product 500kHz , medium-speed signal processing preferred
AiP865x Series: Quiescent Current 45 μA/CH , gain-bandwidth product 1.1MHz , Adaptation to high-speed, low-power scenarios
AiP927x Series: Quiescent Current 7.5 μA/CH , gain-bandwidth product 100kHz , basic rail-to-rail output
The microamp-level, low-power op-amp series features low quiescent current, low offset, and input… / With rail-to-rail output characteristics and performance parameters that directly rival those of leading international brands, it is a reliable choice for domestic substitution.
Key parameters
Operating voltage: 1.6V – 5.5V
Quiescent current: 5 µA/CH - 45 µA / CH
Gain Bandwidth: 100 kHz / 150 kHz / 500 kHz / 1.1 MHz
Input Offset Voltage: 5mV(MAX)
Rail-to-rail: Input / Rail-to-rail output
Output short-circuit current: 56mA (MAX)
Turn-off current: typical with enable 8nA
Product Advantages
1. Wide voltage compatibility, battery-friendly
Operating voltage as low as 1.6V , compatible with multiple power supply options, including button cells, lithium batteries, and dry-cell batteries
Operates stably in low-voltage scenarios, with no chain drops or system outages, meeting the demands of long‑battery‑life devices.
2. Rail-to-rail architecture, with no signal distortion.
except AiP927x All external inputs are supported. / Rail-to-rail output, maximizing signal swing.
Under low-voltage power supply, the dynamic range is fully utilized to prevent clipping distortion, resulting in more complete conditioning of weak signals.
3. Precise trade-off between power consumption and bandwidth
From 5 mu A Low power consumption to 45 mu A Full coverage in high-speed segments, with flexible configuration options tailored to specific scenarios.
The design features a positive correlation between quiescent current and bandwidth, minimizing power consumption while supporting low‑frequency to medium‑speed signal acquisition.
4. Strong drive + High reliability
High output short-circuit current, easily drives sensors, ADC Power amplifier circuit
The open-loop gain, common-mode rejection ratio, and power-supply rejection ratio all exhibit excellent performance, ensuring robust system stability.
5. Complete channels and packaging
Single offer / Double / Four-channel, with / Enablement-free and flexibly optional.
Coverage SOT23 ‑ 5、SOP8、MSOP8、DFN8、 SOP14 For miniaturized packages, save PCB Space, optimized for high-density layouts.
Application areas
Portable Healthcare: Handheld Diagnostic Devices, Low-Power Medical Sensor Front-Ends
Wireless sensor nodes: IoT environmental monitoring, temperature and humidity / Atmospheric pressure / Soil Sensor Signal Conditioning
Smart terminals: battery-powered devices such as smartwatches, remote controls, smoke detectors, and smart door locks.
Industrial Low-Power Applications: Low-Frequency Data Acquisition, Battery-Powered Instruments, and Signal Amplification in Energy-Harvesting Systems
Conclusion
Zhongwei Aixin μ A A low‑power operational amplifier, featuring microamp‑level power consumption, appropriate bandwidth, rail‑to‑rail performance, and strong drive capability, is an ideal choice for battery‑powered devices and low‑power systems. While ensuring signal‑processing accuracy and stability, it significantly extends device battery life and reduces product size.
(Source: Zhongwei Aixin official website)
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