Analogy Semiconductor introduces the OPA825/6/8 series single-channel, dual-channel and quad-channel rail-to-rail wide-band low-noise operational amplifiers, mainly used to optimize precision signal acquisition, current sampling detection and sensor signal conditioning circuits. This series integrates a rail-to-rail input and output architecture, with a typical quiescent current of only 720μA, combining 11MHz wide bandwidth and ultra-low noise characteristics, with 1kHz noise as low as 8nV/√Hz, efficiently balancing cost and comprehensive performance.

In addition, OPA825/6/8 has extremely low input bias current, capable of adapting to mega-ohm level high internal resistance signal sources; built-in RF/EMI suppression filters, supporting 300pF capacitive load unit gain stability; equipped with 4kV HBM electrostatic protection, overload no phase reversal and other robust characteristics, greatly reducing peripheral design difficulty. In terms of electrical specifications, the devices support wide voltage operation, with a minimum 1.8V power supply in the normal temperature range, and an extended temperature range covering −40℃~+125℃, meeting multi-condition low-voltage application requirements.

The package layout is rich and complete. Single-channel OPA825 uses SOT23-5 and SC70-5, dual-channel OPA826 uses SOIC-8, MSOP-8 and TSSOP-8, and quad-channel OPA828 uses SOIC-14 and TSSOP-14, with strong hardware adaptability. Products are widely adapted to multi-field scenarios:

• HEV/EV Inverters and Motor Control
• Battery-Powered Instruments and Equipment
• On-Board Charger (OBC) and Wireless Charger
• Advanced Driver Assistance Systems (ADAS)
• Motor Phase Current Detection

• Various Sensor Signal Conditioning Circuits
  

OPA825/6/8 Series Product Features:

• Unit Gain Bandwidth: 11MHz Typ
• High Slew Rate: 11V/µs Typ
• Fast Settling Time: 0.26µs (0.1%) Typ
• Low Input Noise: 8nV/√Hz typ at 1kHz
• Rail-to-Rail Input and Output
• Built-in RF/EMI Suppression Filter
• Single Supply: 1.8V~5.5V
• Low Quiescent Power: Typical current 720µA for single op-amp at 5.5V supply
• Wide Temperature Range: −40℃~+125℃

Typical Applications:

• Battery-Powered Instruments and Equipment
• OBC and Wireless Charging
• Motor Phase Current Detection
• Sensor Signal Conditioning
• HEV/EV Inverter Control
• ADAS Systems

【For product details, please view the original article: Analogy Semiconductor OPA825/6/8 Series Product Introduction】

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