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MAX9812LEXTVT

更新时间： 2024-11-25 12:10:19
品牌 Logo 应用领域
美信 - MAXIM 放大器
页数 文件大小 规格书
10页 245K
描述
Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias

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MAX9812/MAX9813  
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 out-  
puts, an industry-leading 100dB power-supply rejection  
ratio, and a very low 0.015% THD+N. Power-saving fea-  
tures include very low 230µA supply current and a total  
shutdown mode that cuts the combined supply and  
BIAS currents to only 100nA.  
o PC2001 Compliant  
o 100dB at 217Hz Power-Supply Rejection Ratio  
o Very Low 230µA Quiescent Current  
o Low 0.015% THD+N  
o Available in Two Versions  
MAX9812L/MAX9813L—2.7V to 3.6V  
MAX9812H/MAX9813H—4.5V to 5.5V  
o Internal Low-Noise Microphone Bias Supply  
2.3V for MAX9812L/MAX9813L  
4.0V for MAX9812H/MAX9813H  
o 100nA Low-Power Shutdown Mode  
o Rail-to-Rail Outputs  
o 20dB Fixed Gain  
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.  
o Available in Tiny 6-Pin SC70 (2mm x 2.1mm) and  
8-Pin SOT23 (3mm x 3mm) Packages  
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.  
o Extended Temperature Range -40°C to +85°C  
Ordering Information  
PIN-  
PART  
TEMP RANGE PACKAGE  
V
(V)  
CC  
MAX9812LEXT+T  
-40°C to +85°C 6 SC70  
2.7 to 3.6  
2.7 to 3.6  
4.5 to 5.5  
2.7 to 3.6  
4.5 to 5.5  
Applications  
Notebook Computers  
PDAs  
MAX9812LEXT/V+T -40°C to +85°C 6 SC70  
MAX9812HEXT+T  
MAX9813LEKA+T  
MAX9813HEKA+T  
-40°C to +85°C 6 SC70  
-40°C to +85°C 8 SOT23  
-40°C to +85°C 8 SOT23  
Smart Phones  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
/V denotes an automotive qualified part.  
Car Kit Adapters  
Digital Cameras  
Pin Configurations, Selector Guide, and Typical Operating  
Circuits appear at end of data sheet.  
Video Tape Recorders  
Simplified Block Diagrams  
V
CC  
V
CC  
SHDN  
SHDN  
REFERENCE  
2.3V (L VERSION)  
4.0V (H VERSION)  
REFERENCE  
2.3V (L VERSION)  
4.0V (H VERSION)  
BIAS  
BIAS  
IN1  
IN2  
IN  
OUT  
OUT  
20dB  
20dB  
IN1/IN2  
MAX9812  
MAX9813  
GND  
GND  
For pricing, delivery, and ordering information, please contact Maxim Direct  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
19-2840; Rev 2; 9/12  
1234567...10

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