ISL54004IRTZ

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	Class AB
Output Type:	1-Channel (Mono) with Stereo Headphones
Max Output Power x Channels @ Load:	1.23W x 1 @ 8 Ohm; 215mW x 2 @ 16 Ohm
Voltage - Supply:	2.7 V ~ 5.5 V
Features:	Depop, Shutdown, Thermal Protection
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	20-TQFN (4x4)
Package / Case:	20-WFQFN Exposed Pad
Base Part Number:	ISL54004

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

ISL54004IRTZ Application Field and Working Principle

Linear amplifiers are used to amplify a signal without distortion. Audio amplifiers are designed to take small electrical signals and increase their amplitude, recreating an audio signal in the process. One of the types of audio amplifiers is the ISL54004IRTZ, a low-voltage audio operational amplifier that can be configured in three modes to fit the requirements of various audio codec applications. In this article, we will discuss the application fields and working principle of the ISL54004IRTZ.

Application Fields

The ISL54004IRTZ is a dual-channel high-performance, low-voltage audio operational amplifier primarily used for microphone amplification. It can be used for line amplifiers and transimpedance amplifiers, and can be configured to provide a gain of between 10dB and60dB, depending on the mode of operation. The amplifier is designed with low power consumption and low voltage operation. This makes it ideal for battery-powered applications, such as mobile phones, car audio systems, and portable audio players. Due to its wide bandwidth, low noise, and large gain range, the ISL54004IRTZ is also suitable for hearing aid applications. It is also well-suited for other types of audio applications, such as active loudspeakers, portable media players, and portable audio mixers.

Working Principle

The ISL54004IRTZ is a single-supply class-AB audio amplifier. It is composed of two stages: a differential input and an output stage. Both stages are powered by a single voltage supply ranging from 1.8V to 5.5V. The first stage consists of a differential input, where the signal is matched to the amplifier\'s common-mode and/or differential-mode input conditions. The differential inputs are converted to a single-ended signal with an input impedance of 1 kΩ. The second stage is the output stage. It consists of two N-channel MOSFETs, connected in a class-AB configuration with high gain, low distortion, and low output noise. The class-AB configuration enables the amplifier to produce higher power outputs with lower power consumption, while preserving the natural sound quality of the input signal. The ISL54004IRTZ can be configured in three modes of operation: high gain (30-60 dB), low gain (10-30 dB), and open-loop. In its open-loop configuration, the amplifier can achieve a unity gain, making it suitable for voltage follower applications.

Conclusion

The ISL54004IRTZ is a low-voltage audio operational amplifier designed for microphone amplification. Its wide bandwidth and low power consumption make it suitable for a wide range of audio applications, from hearing aids to active loudspeakers. Additionally, its class-AB configuration provides higher power output with low power consumption and low distortion.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description