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Maxim > 方案 > 血糖仪

麦克风放大器

数据资料
显示 标题/型号 关键优势
QV  PDF 微型、低成本、单/双输入、固定增益麦克风放大器,带有集成偏置
MAX9812, MAX9812H, MAX9812L, MAX9813, MAX9813H, MAX9813L

业内尺寸最小的低噪声、低功耗麦克风放大器,内置偏置电路
QV  PDF 驻极体麦克风前置放大器
MAX9810, MAX9810A, MAX9810B, MAX9810C

MAX9810麦克风前放设计用于驻极体话筒(ECM)内部。用于取代目前所用的FET,代之以具有高增益,高噪声抑制能力,低输出阻抗的放大器



Key Specifications:   Microphone Amplifiers
Part Number Number of Channels Supply Voltage (min) (V) Supply Voltage (max) (V) Quiescent Supply Current (typ) (mA) THD+N (%) Input Noise-Voltage Density (nV/√Hz) PSRR (db) Input Type External Gain Fixed Gain (min) (|V/V|) Fixed Gain (max) (|V/V|) Microphone Bias
MAX9812H  1 4.5 5.5 0.23 0.015 40 100 Single Ended No 10 10 Yes
MAX9812L  1 2.7 3.6 0.23 0.04 40 100 Single Ended No 10 10 Yes
MAX9813H  2 4.5 5.5 0.23 0.015 40 100 Single Ended No 10 10 Yes
MAX9813L  2 2.7 3.6 0.23 0.04 40 100 Single Ended No 10 10 Yes
MAX9810A  1 2.3 5.5 0.67 0.02 16 82 Single Ended No 16 16 No
MAX9810B  1 2.3 5.5 0.67 0.02 16 82 Single Ended No 22 22 No
MAX9810C  1 2.3 5.5 0.67 0.02 16 82 Single Ended No 31 31 No
See All Microphone Amplifiers (17)



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