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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
MAX9724, 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 Supply Voltage (min) (V) Supply Voltage (max) (V) Quiescent Current (mA) Number of ADCs Number of DACs DAC SNR (dB) DAC Bit Depth DAC Sample Rate (kHz) Interface Package
MAX9850 
Audio DAC
1.8 3.6 7.6 0 2 91 18 8 to 48 Audio - I2S
Serial - I2C
THIN QFN/28
THIN QFN/32
See All Audio Data Converters (4)

Key Specifications:   Headphone Amplifiers
Part Number Headphone Amp. VCC (min) (V) Headphone Amp. VCC (max) (V) Headphone Amp. ICC (typ) (mA) Headph. Amp. POUT into 32Ω @1% THD+N (W) Headphone Amp. Half Pwr. THD+N (%) SNR, A-weighted (dB) PSRR (db) Headphone Amp. External Gain Headphone Amp. Fixed Gain (min) (|V/V|) Headphone Amp. Fixed Gain (max) (|V/V|) Features Industry Qualified Package
MAX9724  2.7 5.5 3.5 63 0.02 101 86 Yes 1.5 1.5  -   -  THIN QFN/12
UCSP/0
MAX9728  4.5 5.5 3.5 63 0.02 101 86 Yes 1.5 1.5  -   -  THIN QFN/12
TSSOP/14
MAX9721  0.9 1.8 2.2 20 0.008 92 70 No 1 2  -   -  See Data Sheet
MAX9722  2.4 5.5 5.5 130 0.015 103 90 Yes 2 2
Common-Mode Sense
Automotive - General THIN QFN/16
TSSOP/16
MAX9720  1.8 3.6 5 50 0.006 100 92 No 1 1.41
SmartSense Automatic Short Circuit Detection
 -  UCSP/0
UCSP/16
MAX4409  1.8 3.6 5 65 0.005 98 86 Yes  -   - 
Common-Mode Sense
 -  THIN QFN/20
MAX4411  1.8 3.6 5 65 0.007 98 86 No 1.5 2
Independent Shutdown Controls
 -  THIN QFN/20
UCSP/0
UCSP/14
MAX4410  1.8 3.6 7 65 0.006 98 90 Yes  -   - 
Independent Shutdown Controls
 -  TSSOP/14
UCSP/0
UCSP/14
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)
 -  UCSP/0
UCSP/16
MAX9725  0.9 1.8 2.1 25 0.02 92 80 No 2 4  -   -  THIN QFN/12
UCSP/0
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)
Automotive - General THIN QFN/28
THIN QFN/32
See All Headphone Amplifiers (11)

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 Operating Temp. Range (°C)
MAX4165  1 Input and Output 1 2.7 6.5 1300 850 93 88 150 5 2 26 0.4 No SOT-23/5 -40 to +85
MAX4166  1 Input and Output 1 2.7 6.5 1300 850 93 88 150 5 2 26 0.4 Yes MicroDFN/8
PDIP/8
SOIC/8
uMAX/8
-40 to +85
MAX4167  2 Input and Output 1 2.7 6.5 1300 850 93 88 150 5 2 26 0.4 Yes PDIP/8
SOIC/8
-40 to +85
MAX4168  2 Input and Output 1 2.7 6.5 1300 850 93 88 150 5 2 26 0.4 Yes PDIP/14
SOIC/14
uMAX/10
-40 to +85
MAX4169  4 Input and Output 1 2.7 6.5 1300 1,000 93 88 150 5 2 26 0.4 No PDIP/14
SOIC/14
-40 to +85
See All Operational Amplifiers (141)

Key Specifications:   Speaker Amplifiers
Part Number Class Speaker Amp. VCC (min) (V) Speaker Amp. VCC (max) (V) Speaker Amp. ICC (typ) (mA) POUT into 8Ω @ 1% THD+N (W) POUT into 8Ω @ 10% THD+N (W) Speaker Amp. Half Pwr. THD+N (%) SNR, A-weighted (dB) PSRR (db) Speaker Amp. External Gain Features Number of Channels Package
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 THIN QFN/24
See All Speaker Amplifiers (29)




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