NJU7081M

Instrumentation, Op Amps, Buffer Amps Overview

The NJU7081M is a single-channel Class-AB audio amplifier manufactured by Nisshinbo Micro Devices. It operates on a single power supply ranging from 2.4 V to 5.5 V. The device features a gain of 55 dB and a gain-bandwidth product of 1.5 MHz. Total Harmonic Distortion plus noise is specified at 0.05%. It draws a typical operating current of 3 mA and provides an output current of 30 mA. The input bias current is 10 pA, with an input offset voltage of 10 mV. It supports differential inputs and drives loads as low as 38 Ohms. The component is housed in an SSOP-8 package and functions within a temperature range of -25°C to +75°C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Single-channel mono audio amplification with differential input capability
• Low power consumption suitable for battery-operated portable devices
• High gain configuration with low distortion characteristics

Instrumentation, Op Amps, Buffer Amps Applications

• Portable audio equipment
• Battery-powered consumer electronics
• Mobile communication devices

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix (e.g., TE1) against official documentation, as the base model number may correspond to multiple package variants. Confirm availability status, as this product line is designated for existing customers only and production is scheduled for discontinuation. Ensure the selected variant matches the required package type and thermal specifications for your application design.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications requiring a single-supply, low-voltage audio amplifier with moderate output drive capabilities. Consider the 38 Ohm load impedance requirement when designing speaker or headphone interfaces. Evaluate the 55 dB fixed gain against system signal levels to determine if additional amplification stages are necessary. Verify that the operating temperature range meets the environmental conditions of the target deployment.

Instrumentation, Op Amps, Buffer Amps Part Context

The NJU7081 belongs to the NJU7081 series of audio amplifiers produced by Nisshinbo Micro Devices. This series focuses on low-power, single-supply operation for portable audio applications. The manufacturer, formerly New Japan Radio Co., Ltd., continues to support these components under the Nisshinbo brand. The series includes various package options such as SSOP and VSP to accommodate different PCB layout requirements.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Official substitutes include NJU7081V-TE1 and NJU7081R-TE2. These variants share identical electrical specifications but differ in packaging. NJU7081V-TE1 uses an SSOP-8 package, while NJU7081R-TE2 utilizes a VSP-8 package. Verify pin compatibility and thermal performance before substitution.