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See Technical Specifications

MAX9814ETD+T

Amplifier for microphones featuring AGC and bias for reduced noise

Manufacturer:

Analog Devices
Mfr.Part #:

MAX9814ETD+T
Datasheet:

MAX9814ETD+T Datasheet (PDF)
Series:

MAX9814
THD plus Noise:

0.04 %
Maximum Input Resistance:

10 kOhms
Supply Voltage - Max:

5.5 V
EDA/CAD Models:

Request Free CAD Models for MAX9814ETD+T

Email: [email protected]

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Tel: +852 95804164

MAX9814ETD+T General Description

The MAX9814ETD+T is a low-power, high-performance microphone preamplifier with automatic gain control (AGC) and a digital microphone bias voltage generator. It is designed for applications requiring a high-quality microphone input, such as smartphones, tablets, and wearable devices. This preamplifier features a 2.7V to 3.63V operating voltage range and a low 0.75mA supply current, making it suitable for battery-operated devices. The AGC feature ensures consistent audio levels even in noisy environments, while the digital microphone bias voltage generator simplifies the design process by eliminating the need for external components.The MAX9814ETD+T comes in a tiny 14-pin TDFN package, making it easy to integrate into small, space-constrained designs. It also has a high 78dBPSR (power-supply rejection ratio) and a 20Hz to 20kHz bandwidth, ensuring clear and accurate audio capture.

Key Features

MAX9814ETD+T is a low-noise microphone amplifier with an adjustable gain of up to 60dB, low 1uV input-referred noise, and a low 66uA supply current

It includes a voltage output and is compatible with electret condenser microphones

The device offers a shut-down mode, adjustable attack and release times, and a built-in AGC functionality

Application

The MAX9814ETD+T is commonly used in a variety of applications such as voice recognition systems, audio recording devices, conference call systems, and portable communication devices

It can also be utilized in cameras, camcorders, and other audio capture devices for improved sound quality and performance

Specifications

Product Category	Microphone Preamplifiers	Series	MAX9814
THD plus Noise	0.04 %	Maximum Input Resistance	10 kOhms
Supply Voltage - Max	5.5 V	Supply Voltage - Min	2.7 V
Minimum Operating Temperature	- 40 C	Maximum Operating Temperature	+ 85 C
Mounting Style	SMD/SMT	Development Kit	MAX9814EVKIT+
Input Voltage Range - Max	5.5 V	Operating Supply Current	3.1 mA
Operating Supply Voltage	2.7 V to 5.5 V	Pd - Power Dissipation	1481 mW
Product Type	Microphone Preamplifiers	PSRR - Power Supply Rejection Ratio	80 dB
Factory Pack Quantity	2500	Subcategory	Audio ICs
Voltage Gain dB	60 dB	Part # Aliases	MAX9814
Unit Weight	0.005644 oz