MAX4062:Differential Microphone Preamplifiers with Internal Bias and Complete Shutdown

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.

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)
MAX4060, MAX4061, MAX4062: Block Diagram
MAX4060, MAX4061, MAX4062: Block Diagram
Applications/Uses
  • AES-42 Compliant Microphones
  • Notebook Audio Systems
  • PDA Audio Systems
  • Signal Conditioning
  • Tablet PCs
  • USB Audio Peripherals
DataSheet
titleDownload file
MAX4060-MAX4062 Data SheetMAX4060-MAX4062.pdf
Parametrics
Part NumberChannelsVSUPPLY
(V)
VSUPPLY
(V)
IQ
(mA)
THD+N
(%)
en
(nV/√Hz)
PSRR
(dB)
Input TypeExt. GainFxd. Gain
(|V/V|)
Fxd. Gain
(|V/V|)
Microphone BiasPackage/PinsBudgetary
Price
minmaxtypminminmaxSee Notes
MAX406024.55.50.750.0510090Differential with AuxNo1010YesTDFN-EP/8$0.45 @1k
MAX406112.420DifferentialNoNoTDFN-EP/8
MAX406222.420Differential with AuxYesYesµMAX/10
Design kits & evaluation modules
Quality and Environmental Data
Related Products
  • MAX4462:SOT23, 3V/5V, Single-Supply, Rail-to-Rail Instrumentation Amplifiers
  • MAX4400:Single/Dual/Quad, Low-Cost, Single-Supply, Rail-to-Rail Op Amps with Shutdown
MAX4060-MAX4062.pdf MAX4062
MAX4062.pdf MAX4062
MAX4060-MAX4062.pdf MAX4060