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MAX9812HEXT+T from MAXIM,MAXIM - Dallas Semiconductor

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MAX9812HEXT+T

Manufacturer: MAXIM

Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias

Partnumber Manufacturer Quantity Availability
MAX9812HEXT+T MAXIM 2100 In Stock

Description and Introduction

Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias The MAX9812HEXT+T is a microphone amplifier with automatic gain control (AGC) manufactured by **Maxim Integrated** (now part of Analog Devices).  

### **Key Specifications:**  
- **Supply Voltage Range:** 2.7V to 5.5V  
- **Low Quiescent Current:** 600µA (typical)  
- **Gain Range:** Adjustable from 40dB to 60dB  
- **AGC Range:** Up to 30dB  
- **Fixed AGC Threshold:** -30dBV  
- **Signal-to-Noise Ratio (SNR):** >90dB  
- **THD+N (Total Harmonic Distortion + Noise):** <0.1%  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** 6-Pin TDFN (2mm x 2mm)  

### **Descriptions & Features:**  
- **Automatic Gain Control (AGC):** Maintains consistent output levels for varying input signals.  
- **Low-Noise Microphone Preamplifier:** Optimized for electret microphones.  
- **Adjustable Gain:** Configurable via external resistors.  
- **Low-Power Operation:** Suitable for battery-powered applications.  
- **Fast Attack/Slow Release AGC:** Reduces distortion while maintaining natural sound.  
- **Integrated Bias Voltage:** Simplifies electret microphone interfacing.  
- **Shutdown Mode:** Reduces power consumption when not in use.  

### **Applications:**  
- Portable audio devices  
- Voice recorders  
- Headsets and microphones  
- Teleconferencing systems  
- Security and surveillance systems  

This IC is designed for high-performance audio capture with minimal external components.

Application Scenarios & Design Considerations

Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias

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