Features:
1. Ultra low static power consumption

    Static current (Iq): 300nA~900nA (typical value), much lower than conventional operational amplifiers (μ A/mA level).

    A single battery (such as button battery, lithium battery) can provide long-term power supply, significantly extending the standby and working time of the device.

2. Wide/low voltage power supply range

    Working voltage: usually 1.4V~5.5V, compatible with single power supply (1.8V/3.3V/5V) or dual power supply.

    Adapt to the full cycle of battery voltage attenuation without the need for complex boost circuits.

3. Rail to Rail input/output

    The input common mode voltage and output swing can be close to the positive and negative rails of the power supply, maximizing the dynamic range of the signal at low voltage.

4. Low input bias current

    The input bias current is usually at the pA level (picoampere level), which is suitable for signal acquisition in high impedance sensors such as optoelectronics and piezoelectrics.

5. Miniaturization packaging

    Mainstream packaging: SOT-23-5, SC70-5, MSOP-8, DFN-8, etc., saving PCB space.

6. Low frequency application optimization

    Gain bandwidth product (GBW): several kHz to several hundred kHz, designed specifically for low-frequency (DC to tens of Hz) signal conditioning.

Applications：
1. Portable/Wearable Medical Devices

    Oximeters, blood pressure monitors, electrocardiogram (ECG) monitors, portable blood glucose meters: amplify weak physiological signals and maximize battery life.

2. Battery powered and energy harvesting system

    Wireless sensor nodes (temperature/humidity, pressure), Internet of Things (IoT) devices, button battery powered instruments: long-term unmanned operation.

 3. Low frequency sensor signal conditioning

    Thermocouples, RTDs, strain gauges, photodiodes: low-power amplification and filtering.

4. Portable Consumer Electronics

    Smart watches, wristbands, remote controls, hearing aids: low voltage, low power consumption, small size.