|
Maxim > Solutions > Cordless Phones
Microphone Amplifiers
|
|
| Display |
Title / Parts |
Key Advantages |
| QV PDF |
Tiny, Low-Cost, Single/Dual-Input, Fixed-Gain Microphone Amplifiers with Integrated Bias
MAX9812, MAX9812H, MAX9812L, MAX9813, MAX9813H, MAX9813L
| Industry's Smallest, Low-Noise, Low-Power Microphone Amplifiers with Integrated Bias |
| QV PDF |
Differential Microphone Preamplifier with Internal Bias and Complete Shutdown
MAX4063
| |
| QV PDF |
Electret Condenser Microphone Cartridge Preamplifier
MAX9810, MAX9810A, MAX9810B, MAX9810C
| The MAX9810 microphone preamplifier is intended for use inside electret condenser microphone (ECM) cartridges. The MAX9810 replaces the FET currently used with a high-gain, high-noise rejection, low output-impedance amplifier. |
| QV PDF |
SOT23, 3V/5V, Single-Supply, Rail-to-Rail Instrumentation Amplifiers
MAX4460, MAX4461, MAX4462
| Precision Instrumentation Amplifier Fits in SOT23 Package |
| QV PDF |
Single/Dual/Quad, General-Purpose, Low-Voltage, Rail-to-Rail Output Op Amps
LMX321, LMX324, LMX358
| |
| QV PDF |
Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown
MAX4465, MAX4466, MAX4467, MAX4468, MAX4469
| |
| QV PDF |
Ultra-High PSRR Stereo Drivers + Microphone Amp + 100mA Linear Regulator
MAX4298, MAX4299
| Ultra-High PSRR Stereo Headphone Driver |
| QV PDF |
Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4400, MAX4401, MAX4402, MAX4403
| Rail-to-Rail, 800kHz, Op Amps in Tiny SC70 and SOT23-8 Packages |
| QV PDF |
UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps
MAX4249, MAX4250, MAX4251, MAX4252, MAX4253, MAX4254, MAX4255, MAX4256, MAX4257
| |
| Key Specifications:
Differential/Instrumentation Amplifiers |
| Part Number |
Architecture |
Amps Per Pkg. |
Rail to Rail |
Gain (V/V) |
Min. Total Supply (V) |
Max. Total Supply (V) |
Typ. Supply Current per Amp. (mA) |
Max. VOS (µV) |
Typ. CMRR @ DC (dB) |
Max. Input IBIAS (nA) |
Typ. Unity Gain BW (MHz) |
Input Voltage Noise Density (nV/√Hz) |
Package |
Smallest Available Package (max w/pins) (mm2) |
Operating Temp. Range (°C) |
|
MAX4460
|
Indirect Current-Feedback
|
1
|
Output Only
|
Adj.
|
2.85
|
5.25
|
0.7
|
500
|
120
|
0.1
|
2.5
|
18
|
SOIC/8
SOT-23/6
THIN QFN (Dual)/6
|
9
|
-40 to +85
|
|
MAX4461
|
Indirect Current-Feedback
|
1
|
Output Only
|
1
10
100
|
2.85
|
5.25
|
0.7
|
500
|
120
|
0.1
|
2.5
|
18
|
SOIC/8
SOT-23/6
THIN QFN (Dual)/6
|
9
|
-40 to +85
|
|
MAX4462
|
Indirect Current-Feedback
|
1
|
Output Only
|
1
10
100
|
2.85
|
5.25
|
0.7
|
500
|
120
|
0.1
|
2.5
|
18
|
SOIC/8
SOT-23/6
THIN QFN (Dual)/6
|
9
|
-40 to +85
|
| See All Differential/Instrumentation Amplifiers (17) |
| 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 |
Package |
Smallest Available Package (max w/pins) (mm2) |
|
MAX9812H
|
1
|
4.5
|
5.5
|
0.23
|
0.015
|
40
|
100
|
Single Ended
|
No
|
10
|
10
|
Yes
|
SC-70/6
|
5
|
|
MAX9812L
|
1
|
2.7
|
3.6
|
0.23
|
0.04
|
40
|
100
|
Single Ended
|
No
|
10
|
10
|
Yes
|
SC-70/6
|
5
|
|
MAX9813H
|
2
|
4.5
|
5.5
|
0.23
|
0.015
|
40
|
100
|
Single Ended
|
No
|
10
|
10
|
Yes
|
SOT-23/8
|
9
|
|
MAX9813L
|
2
|
2.7
|
3.6
|
0.23
|
0.04
|
40
|
100
|
Single Ended
|
No
|
10
|
10
|
Yes
|
SOT-23/8
|
9
|
|
MAX4063
|
2
|
2.4
|
5.5
|
0.75
|
0.05
|
12
|
95
|
Differential with Aux
|
Yes
|
20
|
20
|
Yes
|
THIN QFN/16
|
17
|
|
MAX9810A
|
1
|
2.3
|
5.5
|
0.67
|
0.02
|
16
|
82
|
Single Ended
|
No
|
16
|
16
|
No
|
See Data Sheet
|
-
|
|
MAX9810B
|
1
|
2.3
|
5.5
|
0.67
|
0.02
|
16
|
82
|
Single Ended
|
No
|
22
|
22
|
No
|
See Data Sheet
|
-
|
|
MAX9810C
|
1
|
2.3
|
5.5
|
0.67
|
0.02
|
16
|
82
|
Single Ended
|
No
|
31
|
31
|
No
|
See Data Sheet
|
-
|
|
MAX4465
|
1
|
2.4
|
5.5
|
0.024
|
0.02
|
80
|
112
|
Single Ended
|
Yes
|
-
|
-
|
No
|
SC-70/5
|
5
|
|
MAX4466
|
1
|
2.4
|
5.5
|
0.024
|
0.03
|
80
|
112
|
Single Ended
|
Yes
|
-
|
-
|
No
|
SC-70/5
|
5
|
|
MAX4467
|
1
|
2.4
|
5.5
|
0.024
|
0.02
|
80
|
112
|
Single Ended
|
Yes
|
-
|
-
|
Yes
|
SOT-23/8
|
9
|
|
MAX4468
|
1
|
2.4
|
5.5
|
0.024
|
0.03
|
80
|
112
|
Single Ended
|
Yes
|
-
|
-
|
Yes
|
SOT-23/8
|
9
|
|
MAX4469
|
2
|
2.4
|
5.5
|
0.024
|
0.02
|
80
|
112
|
Single Ended
|
Yes
|
-
|
-
|
No
|
SOT-23/8
|
9
|
| See All Microphone Amplifiers (17) |
| 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. 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 |
Smallest Available Package (max w/pins) (mm2) |
Operating Temp. Range (°C) |
|
LMX321
|
1
|
Output Only
|
1
|
2.3
|
7
|
105
|
6,000
|
92
|
96
|
50
|
1.3
|
1
|
66
|
0.13
|
No
|
SC-70/5
SOT-23/5
|
5
|
-40 to +125
|
|
LMX324
|
4
|
Output Only
|
1
|
2.3
|
7
|
105
|
6,000
|
92
|
96
|
50
|
1.3
|
1
|
66
|
0.13
|
No
|
SOIC/14
TSSOP/14
|
33
|
-40 to +125
|
|
LMX358
|
2
|
Output Only
|
1
|
2.3
|
7
|
105
|
6,000
|
92
|
96
|
50
|
1.3
|
1
|
66
|
0.13
|
No
|
SOIC/8
SOT-23/8
uMAX/8
|
9
|
-40 to +125
|
|
MAX4400
|
1
|
Output Only
|
1
|
2.5
|
5.5
|
320
|
4,500
|
84
|
100
|
0.1
|
0.8
|
1
|
36
|
0.001
|
No
|
SC-70/5
SOT-23/5
|
5
|
-40 to +125
|
|
MAX4401
|
1
|
Output Only
|
1
|
2.5
|
5.5
|
320
|
4,500
|
84
|
100
|
0.1
|
0.8
|
1
|
36
|
0.001
|
Yes
|
SC-70/6
|
5
|
-40 to +125
|
|
MAX4402
|
2
|
Output Only
|
1
|
2.5
|
5.5
|
320
|
5,500
|
84
|
100
|
0.1
|
0.8
|
1
|
36
|
0.001
|
No
|
SOIC/8
SOT-23/8
uMAX/8
|
9
|
-40 to +125
|
|
MAX4403
|
4
|
Output Only
|
1
|
2.5
|
5.5
|
320
|
5,500
|
84
|
100
|
0.1
|
0.8
|
1
|
36
|
0.001
|
No
|
SOIC/14
TSSOP/14
|
33
|
-40 to +125
|
|
MAX4249
|
2
|
Output Only
|
10
|
2.4
|
5.5
|
420
|
750
|
115
|
100
|
0.1
|
22
|
2.1
|
8.9
|
0.0005
|
Yes
|
SOIC/14
uMAX/10
|
15
|
-40 to +85
|
|
MAX4250
|
1
|
Output Only
|
1
|
2.4
|
5.5
|
420
|
750
|
115
|
100
|
0.1
|
3
|
0.3
|
8.9
|
0.0005
|
No
|
SOT-23/5
|
9
|
-40 to +85
|
|
MAX4251
|
1
|
Output Only
|
1
|
2.4
|
5.5
|
420
|
750
|
115
|
100
|
0.1
|
3
|
0.3
|
8.9
|
0.0005
|
Yes
|
SOIC/8
uMAX/8
|
16
|
-40 to +85
|
|
MAX4252
|
2
|
Output Only
|
1
|
2.4
|
5.5
|
420
|
750
|
115
|
100
|
0.1
|
3
|
0.3
|
8.9
|
0.0005
|
No
|
SOIC/8
UCSP/8
uMAX/8
|
3
|
-40 to +85
|
|
MAX4253
|
2
|
Output Only
|
1
|
2.4
|
5.5
|
420
|
750
|
115
|
100
|
0.1
|
3
|
0.3
|
8.9
|
0.0005
|
Yes
|
SOIC/14
UCSP/10
uMAX/10
|
3
|
-40 to +85
|
|
MAX4254
|
4
|
Output Only
|
1
|
2.4
|
5.5
|
420
|
750
|
115
|
100
|
0.1
|
3
|
0.3
|
8.9
|
0.0005
|
No
|
SOIC/14
|
54
|
-40 to +85
|
|
MAX4255
|
1
|
Output Only
|
10
|
2.4
|
5.5
|
420
|
750
|
115
|
100
|
0.1
|
22
|
2.1
|
8.9
|
0.0005
|
No
|
SOT-23/5
|
9
|
-40 to +85
|
|
MAX4256
|
1
|
Output Only
|
10
|
2.4
|
5.5
|
420
|
750
|
115
|
100
|
0.1
|
22
|
2.1
|
8.9
|
0.0005
|
No
|
SOIC/8
uMAX/8
|
16
|
-40 to +85
|
|
MAX4257
|
2
|
Output Only
|
10
|
2.4
|
5.5
|
420
|
750
|
115
|
100
|
0.1
|
22
|
2.1
|
8.9
|
0.0005
|
No
|
SOIC/8
uMAX/8
|
16
|
-40 to +85
|
| See All Operational Amplifiers (141) |
|
|
