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Maxim > Solutions > Cordless Phones

Microphone Amplifiers

DATA SHEETS
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 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. VCMVR Rail to Rail AV
(V/V)
VSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Amp.
(mA)
ICC per Amp.
(mA)
VOS
(µV)
CMRR @DC
(dB)
PSRR @DC
(dB)
Input IBIAS
(nA)
Unity Gain BW
(MHz)
VCMVR
(V)
to Neg. Rail min max typ max max typ typ max typ
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 
1
10
100
MAX4462 
1
10
100
See All Differential/Instrumentation Amplifiers (15)

Key Specifications:  Microphone Amplifiers
Part Number Channels VSUPPLY
(V)
VSUPPLY
(V)
IQ
(mA)
THD+N
(%)
en
(nV/√Hz)
PSRR
(dB)
Input Type Ext. Gain Fxd. Gain
(|V/V|)
Fxd. Gain
(|V/V|)
Microphone Bias
min max typ min min max
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
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. Rail to Rail AVCL VSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Amp.
(µA)
ICC per Amp.
(µA)
VOS
(µV)
CMRR @DC
(dB)
PSRR @DC
(dB)
Input IBIAS
(nA)
Unity Gain BW
(MHz)
Slew Rate
(V/µs)
en
(nV/√Hz)
in
(pA/√Hz)
Low Pwr. Shutdn Package/Pins
min min max typ max max typ typ max typ typ
LMX321  1 Output Only 1 2.3 7 105 170 6000 92 96 50 1.3 1 66 0.13 No
SC70/5
SOT/5
LMX324  4 1 2.3 7 105 170 6000 92 96 50 1.3 1 66 0.13 No
SOIC(N)/14
TSSOP/14
LMX358  2 1 2.3 7 105 170 6000 92 96 50 1.3 1 66 0.13 No
µMAX/8
SOIC(N)/8
SOT/8
MAX4400  1 1 2.5 5.5 320 700 4500 84 100 0.1 0.8 1 36 0.001 No
SC70/5
SOT/5
MAX4401  1 1 2.5 5.5 320 700 4500 84 100 0.1 0.8 1 36 0.001 Yes
SC70/6
MAX4402  2 1 2.5 5.5 320 700 5500 84 100 0.1 0.8 1 36 0.001 No
µMAX/8
SOIC(N)/8
SOT/8
MAX4403  4 1 2.5 5.5 320 700 5500 84 100 0.1 0.8 1 36 0.001 No
SOIC(N)/14
TSSOP/14
MAX4249  2 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 1 2.4 5.5 420 575 750 115 100 0.1 3 0.3 8.9 0.0005 No
SOT/5
MAX4251  1 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 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 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 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 10 2.4 5.5 420 575 750 115 100 0.1 22 2.1 8.9 0.0005 No
SOT/5
MAX4256  1 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 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 (145)



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