Nisshinbo Micro Devices NJU77550 NJU77551 NJU77552

The NJU77550, NJU77551 and NJU77552 are single and dual rail-to-rail input and output single supply OpAmps, featuring low supply current of 50 μA typical per amplifier, wide gain bandwidth product of 1.7 MHz and a slew rate of 0.8 V/μs. Furthermore, the operating voltage from 1.8V single supply contributes to an energy saving design, it is most suitable for battery equipment required low power. Low input bias current makes NJU7755x series suitable for photodiode amplifiers, piezoelectric sensors, smoke detectors and other applications with high-impedance applications. A rail-to-rail input and output allows the device to be used in wide variety of applications, such as audio amplifiers, high-side current sensing, active filter, buffering and others. And also, High EMI immunity reduces malfunctions caused by RF-noises from mobile phones and other electronic devices, is ideal for robust industrial applications.

Key features

• High efficiency: - GBW 1.7 MHz - supply current 50 μA/channel
• Rail-to-Rail input and output
• Supply voltage 1.8 V to 5.5 V
• Integrated EMI filter EMIRR = 75 dB @ f = 900 MHz
• Unity-gain stable
• Input offset voltage 5 mV max.
• Slew rate 0.8 V/μs
• Operating temperature -55°C to 125°C
• NJU77550F is a single opamp in SOT-23-5
• NJU77551F is a single opamp in SOT-23-5
• NJU77552G is a dual opamp in SOP8
• NJU77552RB1 is a dual opamp in MSOP8 (TVSP8)

Applications

• Battery-powered equipment
• Gas / Smoke sensors
• Smart meter
• Sensor interface
• Active filter
• Photodiode amplifier