INA137UA/2K5G4

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Class AB
Output Type:	1-Channel (Mono)
Max Output Power x Channels @ Load:	--
Voltage - Supply:	±4 V ~ 18 V
Features:	--
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Base Part Number:	INA137

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INA137UA/2K5G4 Linear - Amplifiers - Audio: Application Field and Working Principle

The INA137UA/2K5G4 is a fully differential, low-noise audio amplifier from Texas Instruments. It is designed for use in sensitive applications, such as instrumentation and medical devices. The device offers low distortion and low power consumption, with a wide operating temperature range. This article will explain the application field, as well as the working principle, of the INA137UA/2K5G4 audio amplifier.

Application Field

The INA137UA/2K5G4 is designed to work with precision, low-noise audio signals. It is ideal for applications such as medical devices, instrumentation, hearing aids, and electrocardiogram (ECG) systems. The device has an adjustable gain range of up to 80dB, and can provide up to 10Vrms output swing. It also has an integrated ground-referenced, low-noise unity-gain buffer circuit.The INA137UA/2K5G4 has a wide operating temperature range of –40°C to +125°C. The device has low quiescent current and a low-noise input, making it suitable for use in low-power, high-dynamic-range, portable audio devices.

Working Principle

The INA137UA/2K5G4 is a fully differential, low-noise operational amplifier. It is designed to amplify audio signals with precision, low distortion, and low power consumption. The device has a differential input gain range of up to 80dB, with a differential output voltage swing of up to 10Vrms.The device consists of two independent gain stages, which can be configured to provide a single, or multiple gains. The first stage is a high-gain (unity gain) amplifier, which provides low-impedance and low-noise input. The second stage is a high-gain, adjustable-gain amplifier, which provides up to 80dB gain.The INA137UA/2K5G4 is designed for use in applications requiring a wide range of gains and voltage swings. It is ideal for precision audio amplification, due to its low noise, low distortion, and low power consumption.

Conclusion

The INA137UA/2K5G4 is a fully differential, low-noise audio amplifier designed for use in sensitive applications. It has a wide operating temperature range and low quiescent current. It is ideal for use in precision audio amplification, due to its low noise, low distortion, and low power consumption. The device can provide up to 80dB gain and 10Vrms output swing, making it suitable for use in low-power, high-dynamic-range, portable audio devices.

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