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Maxim > Solutions > Audio ICs

Headphone Amplifiers

DATA SHEETS
Display Title/Parts Key Advantages
QV  PDF Low RF Susceptibility DirectDrive Stereo Headphone Amplifier with 1.8V Compatible Shutdown
MAX9724C, MAX9724D

Lower Supply (Operates Down to 2.5V), RF-Immune Headphone Amplifier
QV  PDF Evaluation Kit/Evaluation System for the MAX9723A, MAX9723B, MAX9723C, and MAX9723D
MAX9723DEVCMOD2, MAX9723DEVCMODU, MAX9723DEVKIT

QV  PDF Stereo Headphone Amplifier with BassMax, Volume Control, and Input Mux
MAX9729

Patented DirectDrive Headphone Amplifier with Integrated 3:1 Input Stereo Multiplexer, I²C Interface, and Industry-Leading Click-and-Pop Suppression
QV  PDF DirectDrive, Headphone Amplifier with BassMax, I²C, Volume and Gain Control
MAX9726

QV  PDF 10W Mono Class D Speaker Amplifier with Volume Control
MAX9768

High-Efficiency, Low BOM-Cost Class D Amplifier
QV  PDF 1.8W, Filterless, Stereo, Class D Audio Power Amplifier and DirectDrive Stereo Headphone Amplifier
MAX9702

QV  PDF Stereo DirectDrive® Headphone Amplifier with BassMax, Volume Control, and I²C
MAX9723

QV  PDF 60mW, DirectDrive, Stereo Headphone Amplifier with Low RF Susceptibility and Shutdown
MAX9724A, MAX9724B

QV  PDF Stereo Audio DAC with DirectDrive® Headphone Amplifier
MAX9850

1.8V Stereo Audio DAC with Built-In DirectDrive Headphone Amplifier Designed for High-Performance, Space-Constrained Portable Applications
QV  PDF 1V, Low-Power, DirectDrive, Stereo Headphone Amplifier with Shutdown
MAX9725

QV  PDF 1V, Fixed-Gain, DirectDrive®, Stereo Headphone Amplifier with Shutdown
MAX9721

1V, Fixed-Gain, DirectDrive, Stereo-Headphone Amplifier with Shutdown Ideal for Portable Equipment where Board Space Is at a Premium
QV  PDF 5V, Differential Input, DirectDrive, 130mW Stereo Headphone Amplifiers with Shutdown
MAX9722

Next-Generation DirectDrive Headphone Amplifiers Offer Differential Inputs and 5V Operation
QV  PDF 80mW, DirectDrive, Stereo Headphone Amplifier with Common-Mode Sense
MAX4409

80mW, DirectDrive, Stereo Headphone Amplifier with Common-Mode Sense
QV  PDF 50mW, DirectDrive®, Stereo Headphone Amplifier with SmartSense™ and Shutdown
MAX9720, MAX9720A, MAX9720B

50mW, DirectDrive, Stereo-Headphone Amplifier with SmartSense and Shutdown
QV  PDF 80mW, Fixed-Gain, DirectDrive, Stereo Headphone Amplifier with Shutdown
MAX4411, MAX4411B

Unique Low-Cost Headphone Amplifier Eliminates DC-Blocking Capacitors and Gain-Setting Resistors
QV  PDF 80mW, DirectDrive Stereo Headphone Driver with Shutdown
MAX4410

QV  PDF 60mW, DirectDrive®, Stereo Headphone Amplifier with Shutdown
MAX9728, MAX9728A, MAX9728B

60mW DirectDrive Headphone Amplifiers Ideal for TV and Notebook Applications
QV  PDF Dual, Rail-to-Rail, High-Output-Drive Op Amp in UCSP
MAX4369

QV  PDF SC70/SOT23-8, 50mA IOUT, Rail-to-Rail I/O Op Amps with Shutdown/Mute
MAX4335, MAX4336, MAX4337, MAX4338

QV  PDF Ultra-High PSRR Stereo Drivers + Microphone Amp + 100mA Linear Regulator
MAX4298, MAX4299

Ultra-High PSRR Stereo Headphone Driver
QV  PDF High-Output-Drive, Precision, Low-Power, Single-Supply, Rail-to-Rail I/O Op Amps with Shutdown
MAX4165, MAX4166, MAX4167, MAX4168, MAX4169




Key Specifications:  Audio Data Converters
Part Number Functions VSUPPLY
(V)
VSUPPLY
(V)
IQ
(mA)
ADCs DACs SNR
(dB)
Bit Depth Sample Rate
(kHz)
Interface Smallest Available Pckg.
(mm2)
min max DAC DAC DAC max w/pins
MAX9850  Audio DAC 1.8 3.6 7.6 0 2 91 18 8 to 48
Audio - I2S
Serial - I2C
26
See All Audio Data Converters (7)

Key Specifications:  Headphone Amplifiers
Part Number Hdph. Amp. VCC
(V)
Hdph. Amp. VCC
(V)
Hdph. Amp. ICC
(mA)
Hdph. Amp. POUT into 32Ω
(mW)
Hdph. Amp. Half Pwr. THD+N
(%)
SNR
(dB)
PSRR
(dB)
Hdph. Amp. Ext. Gain Hdph. Amp. Fxd. Gain
(|V/V|)
Hdph. Amp. Fxd. Gain
(|V/V|)
Features RoHS Available Industry Qualified Package/Pins Smallest Available Pckg.
(mm2)
min max typ @ 1% THD+N A- Weighted min min max max w/pins
MAX9729  1.8 3.6 4.8 52 0.035 101 90 No 1.5 20
3:1 Stereo Input Mux
Dedicated Beep Input
I2C/SMBus Compatible Interface
Integrated Volume Control
Software Enabled Bass Boost (BassMax)
Yes Automotive - General
TQFN/28
26
MAX9723  1.8 3.6 4 59 0.007 100 90 No 0.5 2
I2C/SMBus Compatible Interface
Integrated Volume Control
Software Enabled Bass Boost (BassMax)
See Data Sheet -
See Data Sheet/
-
MAX9728  4.5 5.5 3.5 63 0.02 101 86 Yes 1.5 1.5 - Yes -
TQFN/12
TSSOP/14
10
MAX9725  0.9 1.8 2.1 25 0.02 92 80 No 2 4 - Yes -
TQFN/12
UCSP/12
3
MAX9721  0.9 1.8 2.2 20 0.008 92 70 No 1 2 - See Data Sheet -
See Data Sheet/
-
MAX9722  2.4 5.5 5.5 130 0.015 103 90 Yes 2 2 Common-Mode Sense Yes Automotive - General
TQFN/16
TSSOP/16
10
MAX9720  1.8 3.6 5 50 0.006 100 92 No 1 1.41 SmartSense Automatic Short Circuit Detection Yes -
TSSOP/16
UCSP/16
4
MAX4409  1.8 3.6 5 65 0.005 98 86 Yes - - Common-Mode Sense Yes -
TQFN/20
17
MAX4411  1.8 3.6 5 65 0.007 98 86 No 1.5 2 Independent Shutdown Controls Yes -
TQFN/20
UCSP/14
4
MAX4410  1.8 3.6 7 65 0.006 98 90 Yes - - Independent Shutdown Controls Yes -
TSSOP/14
UCSP/14
4
See All Headphone Amplifiers (15)

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
MAX4165  1 Input/Output 1 2.7 6.5 1300 1500 850 93 88 150 5 2 26 0.4 No
SOT/5
MAX4166  1 850 Yes
µDFN/8
µMAX/8
PDIP(N)/8
SOIC(N)/8
MAX4167  2 850 Yes
PDIP(N)/8
SOIC(N)/8
MAX4168  2 850 Yes
µMAX/10
PDIP(N)/14
SOIC(N)/14
MAX4169  4 1000 No
PDIP(N)/14
SOIC(N)/14
See All Operational Amplifiers (145)

Key Specifications:  Speaker Amplifiers
Part Number Class Spkr. Amp. VCC
(V)
Spkr. Amp. VCC
(V)
Spkr. Amp. ICC
(mA)
POUT into 8Ω @ 1% THD+N
(W)
POUT into 8Ω @ 10% THD+N
(W)
Spkr. Amp. Half Pwr. THD+N
(%)
SNR
(dB)
PSRR
(dB)
Spkr. Amp. Ext. Gain Features Channels
min max typ min min A- Weighted min
MAX9768  D 4.5 14 11 8 10 0.09 97 84 Yes
Analog or Digitally Programmable Volume Control
External Clock Synchronization
Filterless Operation
Wide Supply Range
1
See All Speaker Amplifiers (30)



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