Datasheet > MAX9812|MAX9813

MAX9812|MAX9813

更新时间： 2022-01-18 18:40:00

品牌	Logo	应用领域
达拉斯 - DALLAS		放大器
页数	文件大小	规格书
11页	309K
描述
Tiny. Low-Cost. Single/Dual-Input. Fixed-Gain Microphone Amplifiers with Integrated Bias

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MAX9812|MAX9813 数据手册

19-2840; Rev 0; 4/03

Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain

Microphone Amplifiers with Integrated Bias

General Description

Features

The MAX9812/MAX9813 are single/dual-input, 20dB

fixed-gain microphone amplifiers. They offer tiny pack-

aging and a low-noise, integrated microphone bias,

making them ideal for portable audio applications such

as notebook computers, cell phones, and PDAs. These

amplifiers feature a 500kHz bandwidth, Rail-to-Rail®

outputs, an industry-leading 100dB power-supply rejec-

tion ratio, and a very low 0.015% THD+N. Power-saving

features include very low 230µA supply current and a

total shutdown mode that cuts the combined supply

and BIAS currents to only 100nA.

ꢀ PC2001 Compliant

ꢀ 100dB at 217Hz Power-Supply Rejection Ratio

ꢀ Very Low 230µA Quiescent Current

ꢀ Low 0.015% THD+N

ꢀ Available in Two Versions

MAX9812L/MAX9813L—2.7V to 3.6V

MAX9812H/MAX9813H—4.5V to 5.5V

ꢀ Internal Low-Noise Microphone Bias Supply

2.3V for MAX9812L/MAX9813L

4.0V for MAX9812H/MAX9813H

The MAX9812 is a single amplifier in a 6-pin SC70

package (2mm x 2.1mm) and the MAX9813 is a dual-

input amplifier available in an 8-pin SOT23 (3mm x

3mm) package. The MAX9813 has two inputs allowing

two microphones to be multiplexed to a single output.

ꢀ 100nA Low-Power Shutdown Mode

ꢀ Rail-to-Rail Outputs

ꢀ 20dB Fixed Gain

ꢀ Available in Tiny 6-Pin SC70 (2mm x 2.1mm) and

8-Pin SOT23 (3mm x 3mm) Packages

ꢀ Extended Temperature Range -40°C to +85°C

The MAX9812/MAX9813 are offered in two grades. The

MAX9812L/MAX9813L are optimized for 3.3V supply

operation (2.7V to 3.6V). The MAX9812H/MAX9813H are

PC2001 compliant and are optimized for 5V operation

(4.5V to 5.5V). Both devices are specified over the -40°C

to +85°C extended operating temperature range.

Ordering Information

PIN-

PART

TEMP RANGE PACKAGE

(V)

Applications

MAX9812LEXT-T -40 C to +85 C 6 SC70-6

MAX9812HEXT-T -40 C to +85 C 6 SC70-6

MAX9813LEKA-T -40 C to +85 C 8 SOT23-8

MAX9813HEKA-T -40 C to +85 C 8 SOT23-8

2.7 to 3.6

4.5 to 5.5

2.7 to 3.6

4.5 to 5.5

Notebook Computers

PDAs

Smart Phones

Pin Configurations, Selector Guide, and Typical Operating

Circuits appear at end of data sheet.

Rail-to-Rail is a trademark of Nippon Motorola Ltd.

Car Kit Adapters

Digital Cameras

Video Tape Recorders

Simplified Block Diagrams

SHDN

OUT

SHDN

OUT

REFERENCE

2.3V (L VERSION)

4.0V (H VERSION)

REFERENCE

2.3V (L VERSION)

4.0V (H VERSION)

BIAS

IN1

IN2

20dB

IN1/IN2

MAX9812

MAX9813

GND

________________________________________________________________ Maxim Integrated Products

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at

1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

12 3 4 5 6 7...11

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与MAX9812|MAX9813相关器件

型号	品牌	描述	获取价格	数据表
MAX9812HEXT	MAXIM	Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias	获取价格
MAX9812HEXT+	MAXIM	Audio Amplifier	获取价格
MAX9812HEXT+T	MAXIM	Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias	获取价格
MAX9812HEXTT	MAXIM	Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias	获取价格
MAX9812HEXT-T	MAXIM	Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias	获取价格
MAX9812HEXT-T	DALLAS	Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias	获取价格

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