Maxim > 方案 > 血糖仪
麦克风放大器
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| 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
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| 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 |
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MAX9812H
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1
|
4.5
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5.5
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0.23
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0.015
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40
|
100
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Single Ended
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No
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10
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10
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Yes
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MAX9812L
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1
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2.7
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3.6
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0.23
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0.04
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40
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100
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Single Ended
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No
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10
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10
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Yes
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MAX9813H
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2
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4.5
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5.5
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0.23
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0.015
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40
|
100
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Single Ended
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No
|
10
|
10
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Yes
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MAX9813L
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2
|
2.7
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3.6
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0.23
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0.04
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40
|
100
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Single Ended
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No
|
10
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10
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Yes
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| See All Microphone Amplifiers (14) |
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