Differential Microphone Preamplifiers with Internal Bias and Complete Shutdown

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The MAX4060/MAX4061/MAX4062 are differential-input microphone preamplifiers optimized for notebook and PDA audio systems. These devices feature adjustable gain with excellent power-supply rejection and common-mode rejection ratios, making them ideal for low-noise applications in portable audio systems.

The MAX4060/MAX4062 are capable of switching their output between the differential input and a single-ended auxiliary microphone amplifier input. In addition, the MAX4060/MAX4062 have a low-noise microphone bias generator. The differential gain of the MAX4061/MAX4062 is set with a single resistor. The MAX4060 has a fixed gain of 10V/V and is PC99/2001 compliant. The MAX4061 includes a complete shutdown mode. In shutdown, the supply current is reduced to 0.3µA and the current to the microphone bias is cut off for ultimate power savings.

The MAX4060 operates from a 4.5V to 5.5V single supply and the MAX4061/MAX4062 operate from 2.4V to 5.5V. All devices are specified over the extended operating temperature range, -40°C to +85°C. The MAX4060/MAX4061 are available in tiny 8-pin TDFN (3mm x 3mm x 0.8mm) and 8-pin µMAX® packages. The MAX4062 is available in a 10-pin µMAX package.
MAX4060, MAX4061, MAX4062: Block Diagram MAX4060, MAX4061, MAX4062: Block Diagram Enlarge+

Key Features

  • 2.4V to 5.5V Single-Supply Operation
  • Adjustable Gain or Fixed-Gain Options
  • High PSRR (86dB at 1kHz)
  • High CMRR (70dB at 1kHz)
  • Low Input-Referred Noise
  • Integrated Microphone Bias
  • 750µA Supply Current
  • 0.3µA Shutdown Current
  • ±4kV ESD Protection (AUX_IN)
  • Rail-to-Rail Outputs
  • THD+N: 0.04% at 1kHz
  • Available in Space-Saving Packages
    • 8-Pin TDFN (MAX4060/MAX4061)
    • 8-Pin µMAX (MAX4060/MAX4061)
    • 10-Pin µMAX (MAX4062)


  • AES-42 Compliant Microphones
  • Notebook Audio Systems
  • PDA Audio Systems
  • Signal Conditioning
  • Tablet PCs
  • USB Audio Peripherals
Part NumberChannelsVSUPPLY
Input TypeExt. GainFxd. Gain
Fxd. Gain
Microphone BiasPackage/PinsBudgetary
minmaxtypminminmaxSee Notes
MAX4060 with AuxNo1010Yes
$0.45 @1k
MAX4061 12.420DifferentialNoNo
$0.45 @1k
MAX4062 22.420Differential with AuxYesYes
$0.49 @1k
See All Microphone Amplifiers (10)
Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

MAX4060EVKIT: Evaluation Kit for the MAX4060

Technical Documents

Tutorial 4694 Introduction to Digital Stethoscopes and Electrical Component Selection Criteria
Tutorial 4691 Introduction to Hearing Aids and Important Design Considerations

Quality and Environmental Data

Request Reliability Report for: MAX4060 
Lead-Free Package Tin (Sn) Whisker Reports

Additional Resources

Topmark Coding MAX4060

CAD Symbols and Footprints

  • MAX4060ETA+
  • MAX4060ETA+T
  • MAX4060ETA-T
  • 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.

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