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MAX4062

更新时间： 2024-11-05 23:46:19
品牌 Logo 应用领域
美信 - MAXIM 放大器
页数 文件大小 规格书
17页 442K
描述
Differential Microphone Preamplifiers with Internal Bias and Complete Shutdown

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MAX4062 数据手册

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19-2408; Rev 1; 1/03  
Differential Microphone Preamplifiers with  
Internal Bias and Complete Shutdown  
General Description  
Features  
o 2.4V to 5.5V Single-Supply Operation  
The MAX4060/MAX4061/MAX4062 are differential-input  
microphone preamplifiers optimized for notebook and  
PDA audio systems. These devices feature adjustable  
gain with excellent power-supply rejection and com-  
mon-mode rejection ratios, making them ideal for low-  
noise applications in portable audio systems.  
o Adjustable Gain or Fixed-Gain Options  
o High PSRR (86dB at 1kHz)  
o High CMRR (70dB at 1kHz)  
o Low Input-Referred Noise  
o Integrated Microphone Bias  
o 750µA Supply Current  
The MAX4060/MAX4062 are capable of switching their  
output between the differential input and a single-  
ended auxiliary microphone amplifier input. In addition,  
the MAX4060/MAX4062 have a low-noise microphone  
bias generator. The differential gain of the  
MAX4061/MAX4062 is set with a single resistor. The  
MAX4060 has a fixed gain of 10V/V and is PC99/2001  
compliant. The MAX4061 includes a complete shut-  
down mode. In shutdown, the supply current is  
reduced to 0.3µA and the current to the microphone  
bias is cut off for ultimate power savings.  
o 0.3µA Shutdown Current  
o
4kV ꢀSꢁ Protection (AꢂUXIN)  
o Rail-to-Rail® Outputs  
o THꢁ+N: 0.04% at 1kHz  
o Available in Space-Saving Packages  
8-Pin Thin QFN (MAU4060/MAU4061)  
8-Pin µMAU (MAU4060/MAU4061)  
10-Pin µMAU (MAU4062)  
The MAX4060 operates from a 4.5V to 5.5V single sup-  
ply and the MAX4061/MAX4062 operate from 2.4V to  
5.5V. All devices are specified over the extended oper-  
ating temperature range, -40°C to +85°C. The  
MAX4060/MAX4061 are available in tiny 8-pin thin QFN  
(3mm x 3mm x 0.8mm) and 8-pin µMAX packages. The  
MAX4062 is available in a 10-pin µMAX package.  
Typical Operating Circuit  
2.4V TO 5.5V  
4
Applications  
USB Audio Peripherals  
BIAS  
Notebook Audio  
Systems  
V
CC  
AES-42-Compliant  
Microphones  
Tablet PCs  
MAX4060  
PDA Audio Systems  
Signal Conditioning  
AUX_IN  
8
x10  
INT/AUX  
1
Ordering Information  
BIAS  
TEMP  
RANGE  
PIN-  
PACKAGE  
TOP  
MARK  
OUT  
2
PART  
5
IN+  
IN-  
MAX4060ETA  
MAX4060EUA  
MAX4061ETA  
MAX4061EUA  
MAX4062EUB  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +85°C  
8 Thin QFN-EP*  
8 µMAX  
ABY  
—
x10  
V
8 Thin QFN-EP*  
8 µMAX  
ABZ  
—
6
BIAS  
3
BIAS  
10 µMAX  
—
BIAS  
*EP = Exposed paddle.  
GND  
7
Pin Configurations and Selector Guide appear at end of  
data sheet.  
Rail-to-Rail is a registered trademark of Nippon Motorola, Ltd.  
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX Maxim Integrated Products  
1
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.  
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