NISD New Release of the NL8902 Series, a High Quality Sound, JFET Input, Dual Audio Operational Amplifier
- A New Standard for Entry-Level! An Audio Operational Amplifier that Delivers High Quality Sound of High-End Models -
Nisshinbo Micro Devices Inc.(NISD) released the NL8902 series, a high quality sound, JFET input, dual audio operational amplifier for use in audio applications.
In recent years, it has become easy to listen to music on PCs and smartphones. On the other hand, there is a growing demand to enjoy music with high quality sound on audio equipment. This product is a JFET input type audio operational amplifier to be released to meet this growing demand. We have applied the high quality sound technology cultivated in our original brand “MUSES” to this type of operational amplifier, which has few options in the market, to provide an excellent balance of sound quality, characteristics, and price. The product can be used in a wide range of applications, from entry-level to high-end models.
In addition to high quality sound, as well as low input bias current and high slew rate, which are features of the JFET input type, noise and distortion characteristics, which are important for audio characteristics, are well balanced.
● Low Input Bias Current: 10 pA
● High Slew Rate: 20 V/μs
● Input Noise Voltage (Noise Characteristics): 10.0 nV/√Hz (at f = 1 kHz)
● Total Harmonic Distortion: 0.0004% (at f = 1 kHz)
In addition, high EMI immunity, phase reversal suppression, and unity-gain stability are featured, making it easy to achieve high quality sound in audio equipment.
Features
1. JFET Input Type with Excellent Balance of Sound Quality, Characteristics, and Price
The high quality sound technology and excellent audio characteristics cultivated in our original brand “MUSES” faithfully reproduce even a delicate nuance of sound. The input stages use JFET input type, which is highly recognized for its sound quality. Our long-term experience in designing and manufacturing audio amplifiers with high quality sound and continuous improvements have resulted in a high-level balance of sound quality, characteristics, and price.
2. Usability Improvements
The product features high EMI immunity and is not easily affected by external noise, resulting in clear and stable sound quality. In addition, the design prevents phase reversal even when the input voltage exceeds the common-mode input voltage range, maintaining stable output even in the event of sudden input variations. It also features unity-gain stability and can be used in a wide range of circuit designs. With ease of use and safe operation, improved development efficiency and high quality sound can be easily achieved.
3. Small, High Heat Dissipation Package (DFN)
The use of a small DFN package with excellent heat dissipation performance enables mounting in limited space, improving equipment downsizing and design flexibility. In addition, the excellent heat dissipation performance enables stable operation even at high power output, and therefore the product allows for highly reliable designs.
Applications
● PC Audio, Desktop Audio
● Portable Audio Player
● Portable Headphone Amplifier
● Car Audio
● Professional Audio
Product Photo
NL8902 (left: EMP-8-AN, right: DFN4035-8-GR)
Main Specifications (Please refer to the datasheet for details.)
| Item | NL8902AN | NL8902GR | Package | EMP-8-AN 3.9 × 5.0 × 1.65 mm |
DFN4035-8-GR 4.0 × 3.5 × 0.75 mm |
| Number of Circuits | 2 | Same as Left |
| Operating Voltage Range | ±4 V to ±16 V | Same as Left |
| Input Noise Voltage | 10.0 nV/√Hz typ. at f = 1 kHz | Same as Left |
| Total Harmonic Distortion | 0.0004% typ. at f = 1 kHz | Same as Left |
| Gain Bandwidth Product | 9 MHz typ. | Same as Left |
| Slew Rate | 20 V/µs typ. | Same as Left | Input Bias Current | 10 pA typ. | Same as Left | EMI Immunity | EMIRR = 82 dB (f = 1.8 GHz) | Same as Left | Quiescent Current | 2.6 mA typ. | Same as Left | Unity-Gain Stable | 20 V/µs typ. | Yes | JFET Input | 20 V/µs typ. | Yes | Bipolar Technology | 20 V/µs typ. | Yes |