SC70/SOT23-8, 50mA IOUT, Rail-to-Rail I/O Op Amps with Shutdown/Mute

Please check latest availability status for a specific part variant.


The MAX4335–MAX4338 op amps deliver 40mW per channel into 32Ω from ultra-small SC70/SOT23 packages making them ideal for mono/stereo headphone drivers in portable applications. These amplifiers have a 5MHz gain-bandwidth product and are guaranteed to deliver 50mA of output current while operating from a single supply of 2.7V to 5.5V.

The MAX4336 and the MAX4338 have a shutdown/mute mode that reduces the supply current to 0.04µA per amplifier and places the outputs in a high-impedance state.

The MAX4335–MAX4338 have 90dB power-supply rejection ratio (PSRR), eliminating the need for costly preregulation in most audio applications. Both the input voltage range and the output voltage swing include both supply rails, maximizing dynamic range.

The MAX4335/MAX4336 single amplifiers are available in ultra-small 6-pin SC70 packages. The MAX4337/MAX4338 dual amplifiers are available in an 8-pin SOT23 and a 10-pin µMAX® package, respectively. All devices are specified from -40°C to +85°C.
MAX4335, MAX4336, MAX4337, MAX4338: Typical Operating Circuit MAX4335, MAX4336, MAX4337, MAX4338: Typical Operating Circuit Enlarge+

Key Features

  • 50mA Output Drive Capability
  • Low 0.003% THD (20kHz into 10kΩ)
  • Rail-to-rail Inputs and Outputs
  • 2.7V to 5.5V Single-Supply Operation
  • 5MHz Gain-Bandwidth Product
  • 95dB Large-Signal Voltage Gain
  • 90dB Power-Supply Rejection Ratio
  • No Phase Reversal for Overdrive Inputs
  • Ultra-Low Power Shutdown/Mute Mode
    • Reduces Supply Current to 0.04µA
    • Places Output in High-Impedance State
  • Thermal Overload Protection


  • 32Ω Headphone Drivers
  • DAC/ADC Buffers
  • Hands-Free Car Phones
  • Portable Battery-Powered Instruments
  • Transformer/Line Drivers
  • Wireless PA Control

MAX4336EVKIT: Evaluation Kit for the MAX4231 and MAX4336
MAX4233EVKIT: Evaluation Kit for the MAX4338 and MAX4233
MAX4338EVKIT: Evaluation Kit for the MAX4338 and MAX4233

Technical Documents

App Note 988 Driving Audio Piezoelectric Transducers

Quality and Environmental Data

Request Reliability Report for: MAX4336 
Lead-Free Package Tin (Sn) Whisker Reports
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

Quality Management System >
Environmental Management System >


Related Resources

DOCSIS 3.1 Programmable-Gain Amplifier

  • Delivers +68dBmV Output Power While Meeting DOCSIS 3.1 Requirements
  • Covers 5MHz–204MHz Output Bandwidth
  • Dual Outputs Eliminates Need for an External RF Switch