Features:
1. Wide/high working voltage
Typical range: ± 5V~± 110V (single power supply 10V~220V).
Supports single/dual power supply, suitable for industrial and instrument level high-voltage systems.
2. Ultra low noise performance
Voltage noise: as low as 0.9~10 nV/√ Hz @ 1kHz.
Low frequency noise: The noise in the frequency range of 0.1Hz~10Hz is as low as 0.2~0.55 μ Vpp.
Current noise: as low as fA/√ Hz level (e.g. OPA818 is 3 fA/√ Hz).
3. High precision DC characteristics
Low offset voltage: typical value of 1~30 μ V.
Low offset drift: as low as 0.1~0.5 μ V/° C.
High suppression ratio: CMRR and PSRR are usually>120dB, effectively suppressing common mode interference and power ripple.
4. Excellent dynamic performance
High gain bandwidth product (GBW): several MHz to GHz (such as OPA818 reaching 2.7GHz).
High Voltage Swing Rate (SR): can reach tens to hundreds of V/μ s, quickly responding to large signals.
5. High stability and reliability
Stable unit gain, supporting rail to rail input/output (RRO).
Wide temperature range (-40 ° C~+125 ° C), suitable for harsh industrial environments.
Applications：
1. Precision measurement and instrumentation
Sensor signal conditioning: pressure, strain, bridge sensors (such as electronic scales, industrial pressure transmitters).
Data acquisition (DAQ): high-precision ADC front-end driver, reference voltage buffer.
Testing and measuring equipment: oscilloscope, spectrum analyzer, multimeter front-end amplifier.
2. Medical and Life Sciences
Medical electronics: physiological signal amplification such as electrocardiogram (ECG) and electroencephalogram (EEG).
Analytical instruments: Mass spectrometer high-voltage control, photoelectric detection (APD/PADD bias).
3. Industry and Automation
Industrial control: PLC analog I/O module, high/low side current detection.
Motor drive: servo system current/voltage sampling, power level control.
High voltage drive: piezoelectric ceramic drive, electrostatic control, high-voltage power feedback.
4. Audio and High Fidelity
Professional audio: microphone preamplifier, mixing console, Hi Fi amplifier preamplifier.
Audio DAC output buffer: ensures low distortion and high dynamic range output.
Optical module: transimpedance amplifier (TIA), high-speed photodiode signal amplification.
