Maxim > 方案 > 音频IC
麦克风放大器
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|
| 显示 |
标题/型号 |
关键优势 |
| QV PDF |
I²C可编程增益放大器，用于音频产品
DS4420
| 全差分、可编程增益放大器，适合音频应用 |
| 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 |
差分麦克风前置放大器，内部偏置并可完全关断
MAX4063
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| QV PDF |
差分麦克风前置放大器，内部偏置并可完全关断
MAX4060, MAX4061, MAX4062
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| QV PDF |
SOT23封装、3V/5V、单电源、满摆幅仪表放大器
MAX4460, MAX4461, MAX4462
| SOT23封装的精密仪表放大器
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| QV PDF |
单/双/四路、通用、低电压、满摆幅输出运算放大器
LMX321, LMX324, LMX358
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| QV PDF |
低成本、微功耗、SC70/SOT23-8封装、麦克风前置放大器，可完全关断
MAX4465, MAX4466, MAX4467, MAX4468, MAX4469
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| QV PDF |
超高PSRR立体声驱动器 + 麦克风放大器 + 100mA线性稳压器
MAX4298, MAX4299
| 具有极高PSRR的立体声耳机驱动器 |
| QV PDF |
单/双/四路、低成本、单电源、满摆幅运算放大器，带有关断
MAX4400, MAX4401, MAX4402, MAX4403
| 满摆幅、800kHz运算放大器，采用微型SC70和SOT23-8封装 |
| QV PDF |
UCSP封装、单电源、低噪声、低失真、满摆幅运算放大器
MAX4249, MAX4250, MAX4251, MAX4252, MAX4253, MAX4254, MAX4255, MAX4256, MAX4257
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| Key Specifications:
Differential/Instrumentation Amplifiers |
| Part Number |
Architecture |
Amps Per Pkg. |
Input CMVR to Neg. Rail |
Rail to Rail |
Gain (V/V) |
Min. Total Supply (V) |
Max. Total Supply (V) |
Typ. Supply Current per Amp. (mA) |
Max. Supply Current per Amp. (mA) |
Max. VOS (µV) |
Typ. CMRR @ DC (dB) |
Typ PSRR @ DC (dB) |
Max. Input IBIAS (nA) |
Typ. Unity Gain BW (MHz) |
Input CMVR (V) |
|
MAX4460
|
Indirect Current-Feedback
|
1
|
Yes
|
Output Only
|
Adj.
|
2.85
|
5.25
|
0.7
|
1.1
|
500
|
120
|
100
|
0.1
|
2.5
|
VSS-0.1 to VDD-1.7
|
|
MAX4461
|
Indirect Current-Feedback
|
1
|
Yes
|
Output Only
|
1
10
100
|
2.85
|
5.25
|
0.7
|
1.1
|
500
|
120
|
100
|
0.1
|
2.5
|
VSS-0.1 to VDD-1.7
|
|
MAX4462
|
Indirect Current-Feedback
|
1
|
Yes
|
Output Only
|
1
10
100
|
2.85
|
5.25
|
0.7
|
1.1
|
500
|
120
|
100
|
0.1
|
2.5
|
VSS-0.1 to VDD-1.7
|
| See All Differential/Instrumentation Amplifiers (17) |
| Key Specifications:
Digital Potentiometers |
| Part Number |
Taper |
Control Interface |
Wiper Memory |
Number of Steps |
Max. Idle State Supply Current @5V (µA) |
Features |
Smallest Available Package (max w/pins) (mm2) |
|
DS4420
|
Log
|
2-Wire Addressable
|
Volatile
|
20
|
3000
|
| • | Differential Inputs and Outputs |
| • | Low Distortion Driving into a 50Ω Load |
|
10
|
| See All Digital Potentiometers (121) |
| 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
|
|
MAX4063
|
2
|
2.4
|
5.5
|
0.75
|
0.05
|
12
|
95
|
Differential with Aux
|
Yes
|
20
|
20
|
Yes
|
|
MAX4060
|
2
|
4.5
|
5.5
|
0.75
|
0.05
|
100
|
90
|
Differential with Aux
|
No
|
10
|
10
|
Yes
|
|
MAX4061
|
1
|
2.4
|
5.5
|
0.75
|
0.05
|
20
|
90
|
Differential
|
No
|
10
|
10
|
No
|
|
MAX4062
|
2
|
2.4
|
5.5
|
0.75
|
0.05
|
20
|
90
|
Differential with Aux
|
Yes
|
10
|
10
|
Yes
|
|
MAX4465
|
1
|
2.4
|
5.5
|
0.024
|
0.02
|
80
|
112
|
Single Ended
|
Yes
|
-
|
-
|
No
|
|
MAX4466
|
1
|
2.4
|
5.5
|
0.024
|
0.03
|
80
|
112
|
Single Ended
|
Yes
|
-
|
-
|
No
|
|
MAX4467
|
1
|
2.4
|
5.5
|
0.024
|
0.02
|
80
|
112
|
Single Ended
|
Yes
|
-
|
-
|
Yes
|
|
MAX4468
|
1
|
2.4
|
5.5
|
0.024
|
0.03
|
80
|
112
|
Single Ended
|
Yes
|
-
|
-
|
Yes
|
|
MAX4469
|
2
|
2.4
|
5.5
|
0.024
|
0.02
|
80
|
112
|
Single Ended
|
Yes
|
-
|
-
|
No
|
| See All Microphone Amplifiers (14) |
| Key Specifications:
Operational Amplifiers |
| Part Number |
Amps Per Pkg. |
Rail to Rail |
Min. Stable Closed Loop Gain (V/V) |
Min. Total Supply (V) |
Max. Total Supply (V) |
Typ. Supply Current per Amp. (µA) |
Max. Supply Current per Amp. (µA) |
Max. VOS (µV) |
Typ. CMRR @ DC (dB) |
Typ PSRR @ DC (dB) |
Max. Input IBIAS (nA) |
Typ. Unity Gain BW (MHz) |
Typ. Slew Rate (V/µs) |
Input Voltage Noise Density (nV/√Hz) |
Input Current Noise Density (pA/√Hz) |
Low Power Shutdown |
Package |
|
LMX321
|
1
|
Output Only
|
1
|
2.3
|
7
|
105
|
170
|
6,000
|
92
|
96
|
50
|
1.3
|
1
|
66
|
0.13
|
No
|
SC70/5
SOT/5
|
|
LMX324
|
4
|
Output Only
|
1
|
2.3
|
7
|
105
|
170
|
6,000
|
92
|
96
|
50
|
1.3
|
1
|
66
|
0.13
|
No
|
SOIC(N)/14
TSSOP/14
|
|
LMX358
|
2
|
Output Only
|
1
|
2.3
|
7
|
105
|
170
|
6,000
|
92
|
96
|
50
|
1.3
|
1
|
66
|
0.13
|
No
|
µMAX/8
SOIC(N)/8
SOT/8
|
|
MAX4400
|
1
|
Output Only
|
1
|
2.5
|
5.5
|
320
|
700
|
4,500
|
84
|
100
|
0.1
|
0.8
|
1
|
36
|
0.001
|
No
|
SC70/5
SOT/5
|
|
MAX4401
|
1
|
Output Only
|
1
|
2.5
|
5.5
|
320
|
700
|
4,500
|
84
|
100
|
0.1
|
0.8
|
1
|
36
|
0.001
|
Yes
|
SC70/6
|
|
MAX4402
|
2
|
Output Only
|
1
|
2.5
|
5.5
|
320
|
700
|
5,500
|
84
|
100
|
0.1
|
0.8
|
1
|
36
|
0.001
|
No
|
µMAX/8
SOIC(N)/8
SOT/8
|
|
MAX4403
|
4
|
Output Only
|
1
|
2.5
|
5.5
|
320
|
700
|
5,500
|
84
|
100
|
0.1
|
0.8
|
1
|
36
|
0.001
|
No
|
SOIC(N)/14
TSSOP/14
|
|
MAX4249
|
2
|
Output Only
|
10
|
2.4
|
5.5
|
420
|
575
|
750
|
115
|
100
|
0.1
|
22
|
2.1
|
8.9
|
0.0005
|
Yes
|
µMAX/10
SOIC(N)/14
|
|
MAX4250
|
1
|
Output Only
|
1
|
2.4
|
5.5
|
420
|
575
|
750
|
115
|
100
|
0.1
|
3
|
0.3
|
8.9
|
0.0005
|
No
|
SOT/5
|
|
MAX4251
|
1
|
Output Only
|
1
|
2.4
|
5.5
|
420
|
575
|
750
|
115
|
100
|
0.1
|
3
|
0.3
|
8.9
|
0.0005
|
Yes
|
µMAX/8
SOIC(N)/8
|
|
MAX4252
|
2
|
Output Only
|
1
|
2.4
|
5.5
|
420
|
575
|
750
|
115
|
100
|
0.1
|
3
|
0.3
|
8.9
|
0.0005
|
No
|
µMAX/8
SOIC(N)/8
UCSP/8
|
|
MAX4253
|
2
|
Output Only
|
1
|
2.4
|
5.5
|
420
|
575
|
750
|
115
|
100
|
0.1
|
3
|
0.3
|
8.9
|
0.0005
|
Yes
|
µMAX/10
SOIC(N)/14
UCSP/10
|
|
MAX4254
|
4
|
Output Only
|
1
|
2.4
|
5.5
|
420
|
575
|
750
|
115
|
100
|
0.1
|
3
|
0.3
|
8.9
|
0.0005
|
No
|
SOIC(N)/14
|
|
MAX4255
|
1
|
Output Only
|
10
|
2.4
|
5.5
|
420
|
575
|
750
|
115
|
100
|
0.1
|
22
|
2.1
|
8.9
|
0.0005
|
No
|
SOT/5
|
|
MAX4256
|
1
|
Output Only
|
10
|
2.4
|
5.5
|
420
|
575
|
750
|
115
|
100
|
0.1
|
22
|
2.1
|
8.9
|
0.0005
|
No
|
µMAX/8
SOIC(N)/8
|
|
MAX4257
|
2
|
Output Only
|
10
|
2.4
|
5.5
|
420
|
575
|
750
|
115
|
100
|
0.1
|
22
|
2.1
|
8.9
|
0.0005
|
No
|
µMAX/8
SOIC(N)/8
|
| See All Operational Amplifiers (144) |
| Key Specifications:
Programmable Gain Amplifiers |
| Part Number |
Interface Type |
Gain (V/V) |
Gain Error (max) (%) |
Supply Voltage (min) (V) |
Supply Voltage (max) (V) |
Shutdown-Mode Supply Current (max) (µA) |
Supply Current (typ) (µA) |
Supply Current (max) (µA) |
Operating Temp. Range (°C) |
Package |
|
DS4420
|
I2C
|
0.0178 to 17.78
|
10
|
4.5
|
5.5
|
140
|
1700
|
3000
|
-20 to +70
|
TDFN-EP/14
|
| See All Programmable Gain Amplifiers (2) |
|
