NJM4556AL Information
The NJM4556AL is a high-gain, high-output current dual operational amplifier designed to drive heavy loads with ease, including up to ±70mA into 150Ω loads, achieving an output voltage of ±10.5V. It supports low supply voltage operation, working effectively at ±2V or higher. The NJM4556AL builds upon the features of the NJM4558, delivering enhanced performance for applications that require high drive capabilities.
With its wide bandwidth, low noise, high slew rate, and low distortion, the NJM4556AL is especially well-suited for audio applications, telecommunications equipment, and precision instrumentation, providing reliable performance across various demanding environments.
NJM4556AL Working Principle
The operating principle of the NJM4556AL is based on the characteristics of a dual operational amplifier (Op-Amp), which is capable of providing high gain and high current outputs at low voltage conditions. Its internal structure consists of two high-gain amplification stages capable of amplifying the input signal and driving a lower impedance load.
NJM4556AL Pin Configuration
NJM4556AL Model
NJM4556AL Equivalent Circuit
NJM4556AL Specification
| Specification | Details |
| Voltage - Supply Span (Min) | 4 V |
| Voltage - Supply Span (Max) | 36 V |
| Output Current | 70mA |
| Output Voltage | 10.5V |
| Bandwidth | 8 MHz |
| Slew Rate | 3V/µs |
| Voltage - Input Offset | 500 µV |
| Input Bias Current | 50 nA |
| Input Resistance | 5 MΩ |
| Total Harmonic Distortion | 0.003% |
| Noise (Equivalent Input) | 8 nV/√Hz |
| Operating Temperature Range | -40°C ~ 85°C |
| Package Type | 8-SIP |
NJM4556AL Features
Supply Voltage ( ±2V~±18V )
High Output Current ( IO=70mA )
Slew Rate ( 3V/μs typ. )
Gain Band Width Product ( 8MHz typ. )
Equivalent Input Noise Voltage ( 10nV/√Hz typ. )
Package Outline DIP8,DMP8,SIP8,SSOP8
Bipolar Technology
NJM4556AL Applications
Headphone Amplifiers
Audio Mixers
Preamplifiers
Analog Signal Processing
Voltage-Follower Circuits
DAC Output Buffers
NJM4556AL Package
The NJM4556AL comes in an 8-SIP (Single In-line Package) configuration, featuring eight pins suitable for vertical mounting on PCB boards. This packaging not only saves circuit board space but also enhances heat dissipation, making it ideal for applications like audio amplifiers and signal processing devices.
Moreover, the simple pin layout of the 8-SIP package facilitates easy soldering and assembly, providing advantages in both prototype design and mass production. This packaging style is frequently used for electrical connections, and its through-hole design offers stable mechanical support for the NJM4556AL, ensuring reliable performance during operation.
NJM4556AL Manufacturer
The NJM4556AL is manufactured by Nisshinbo Micro Devices Inc., a company that specializes in high-performance analog integrated circuits. Nisshinbo is renowned for its excellent product quality and innovative capabilities, offering a wide range of solutions across various sectors, including audio, telecommunications, and automotive electronics. The company is dedicated to advancing technology and continuously engages in research and development to meet the market's demand for efficient and reliable electronic components.
How to Use NJM4556AL?
To use the NJM4556AL, start by designing the circuit diagram based on your application requirements. Determine the type of input signal, gain settings, and load requirements.
Next, install the NJM4556AL in its 8-SIP package on the PCB. Connect the pins according to the pin configuration diagram in the datasheet. Ensure that the power pins are connected to the appropriate positive and negative voltages, and connect the input signal and output load. Solder the pins securely to ensure a strong connection.
Once the circuit connections are complete, power on the circuit and perform testing. Use an oscilloscope to monitor the output waveform. If the output is not as expected, check the power supply voltage, input signal, and connections for correctness.
FAQs
What is NJM4556AL?
The NJM4556AL is a high-gain, dual operational amplifier designed for audio, telecommunications, and instrumentation applications. It can drive ±70mA into 150Ω loads and operates at low supply voltages.
What type of package does the NJM4556AL come in?
The NJM4556AL is available in an 8-SIP (Single In-line Package) configuration, which allows for easy PCB mounting and efficient use of board space.
What should I do if the output signal is not as expected?
If the output signal is not correct, check the power supply voltage, verify the connections for input and output, and ensure that the gain settings are appropriate for your application.
