Product Summary

The integrated circuit U4083B is a low-power audio amplifier for telephone loudspeakers. It has differential speaker outputs to maximize the output swing at low supply voltages. There is no need for coupler capacitors. The U4083B has an open-loop gain of 80 dB where the closed-loop gain is adjusted with two external resistors. A chip disable pin permits powering down and/or muting the input signal.

Parametrics

U4083B absolute maximum ratings: (1)Supply voltage: –1.0 to +18 V; (2)Voltages: -1.0 to (VS + 1.0); (3)Disabled: -1.0 to (VS + 1.0)V; (4)Output current: ±250 mA; (5)Junction temperature: +140 °C; (6)Storage temperature range: –55 to +150 °C; (7)Ambient temperature range: –20 to +70 °C; (8)Power dissipation SO8: Tamb = 60°C: 440 mW.

Features

U4083B features: (1)Wide Operating Voltage Range: 2V to 16V; (2)Low Current Consumption: 2.7 mA Typically; (3)Chip Disable Input to Power Down the Integrated Circuit; (4)Low Power-down Quiescent Current; (5)Drives a Wide Range of Speaker Loads; (6)Output Power Po = 250 mW at RL = 32Ω (Speaker); (7)Low Harmonic Distortion (0.5% Typically); (8)Wide Gain Range: 0 dB to 46 dB.

Diagrams

U4083B pin connection

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
U4083B-MFPG3Y 19
U4083B-MFPG3Y 19


IC AMP AUDIO LP TELEPHONE 8SOIC

Data Sheet

0-4000: $0.29
U4083B-MFPG3Y19
U4083B-MFPG3Y19

Atmel

Audio Amplifiers Com. Corded Audio Amp.

Data Sheet

0-3200: $0.29
U4083B-MFPY
U4083B-MFPY

Atmel

Audio Amplifiers COM.CORDED AUDIO AMP

Data Sheet

Negotiable 
U4083B-MFPY 19
U4083B-MFPY 19


IC AMP AUDIO LP TELEPHONE 8SOIC

Data Sheet

0-5600: $0.29
U4083B-MFPY19
U4083B-MFPY19

Atmel

Audio Amplifiers Com. Corded Audio Amp.

Data Sheet

0-4500: $0.29
U4083B-MFPG3Y
U4083B-MFPG3Y

Atmel

Audio Amplifiers COM.CORDED AUDIO AMP

Data Sheet

Negotiable 
U4083B
U4083B

Other


Data Sheet

Negotiable