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Maxim > Products > Amplifiers and Comparators 
MAX4465, MAX4466, MAX4467, MAX4468, MAX4469
Low-Cost, Micropower, SC70/SOT23-8, Microphone Preamplifiers with Complete Shutdown


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Data Sheet
FULL DATA SHEET (PDF, 508kB)
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Description
The MAX4465–MAX4469 are micropower op amps optimized for use as microphone preamplifiers. They provide the ideal combination of an optimized gain bandwidth product vs. supply current, and low-voltage operation in an ultra-small package. The MAX4465/MAX4467/MAX4469 are unity-gain stable and deliver a 200kHz gain bandwidth from only 20µA of supply current. The MAX4466/MAX4468 are decompensated for a minimum stable gain of +5V/V and provide a 600kHz gain bandwidth product. In addition these amplifiers feature rail-to-rail outputs, high AVOL, plus excellent power-supply rejection and common-mode rejection ratios for operation in noisy environments.

The MAX4467/MAX4468 include a complete shutdown mode. In shutdown, the amplifiers' supply current is reduced to 5nA and the bias current to the external microphone is cut off for ultimate power savings. The single MAX4465/MAX4466 are offered in the ultra-small 5-pin SC70 package, while the single with shutdown MAX4467/MAX4468 and dual MAX4469 are available in the space-saving 8-pin SOT23 package.

Key Features   Applications/Uses
  • +2.4V to +5.5V Supply Voltage Operation
  • Versions with 5nA Complete Shutdown Available (MAX4467/MAX4468)
  • Excellent Power-Supply Rejection Ratio: 112dB
  • Excellent Common-Mode Rejection Ratio: 126dB
  • High AVOL: 125dB (RL = 100kΩ)
  • Rail-to-Rail Outputs
  • Low 24µA Quiescent Supply Current
  • Gain Bandwidth Product:
    • 200kHz (MAX4465/MAX4467/MAX4469)
    • 600kHz AV ≥ 5 (MAX4466/MAX4468)
  • Available in Space-Saving Packages
    • 5-Pin SC70 (MAX4465/MAX4466)
    • 8-Pin SOT23 (MAX4467/MAX4468/MAX4469)

  
  		• Cell Phones
  		• Digital Dictation Devices
  		• Headsets
  		• Hearing Aids
  		• Microphone Preamplifiers
  		• Portable Computing
  		• Voice-Recognition Systems

    Key Specifications:   Microphone Amplifiers
    Part Number Number of Channels Supply Voltage (min) (V) Supply Voltage (max) (V) Quiescent Supply Current (typ) (mA) THD+N (%) Input Noise-Voltage Density (nV/√Hz) PSRR (db) Input Type External Gain Microphone Bias RoHS Available Package Price**
    MAX4465  1 2.4 5.5 0.024 0.02 80 112 Single Ended Yes No Yes SC-70/5 $0.29 @ 1k
    MAX4466  1 0.03 No SC-70/5 $0.29 @ 1k
    MAX4467  1 0.02 Yes SOT-23/8 $0.38 @ 1k
    MAX4468  1 0.03 Yes SOT-23/8 $0.38 @ 1k
    MAX4469  2 0.02 No SOT-23/8 $0.44 @ 1k
    See All Microphone Amplifiers (17)
    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 prices and delivery, please see the price and availability page or contact an authorized distributor.

    Diagram
    MAX4465, MAX4466, MAX4467, MAX4468, MAX4469: Typical Operating Circuit
    Typical Operating Circuit

    Evaluation Kits
    none

    Design Guides
  		• AMPLIFIERS/COMPARATORS (PDF)

    Reliability Reports
  		• Show FIT data for:
  		• Request Reliability Report for:

    Software/Models
    none

    Ordering Information
    Notes:

    1. Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
    2. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
    3. Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions.
    4. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.


    Devices: 1-20 of 20

    MAX4465 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4465EXK  
    		SC-70;5 pin;
    Dwg: 21-0076E (PDF)
    Use pkgcode/variation: X5-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4465EXK+  
    		SC-70;5 pin;
    Dwg: 21-0076E (PDF)
    Use pkgcode/variation: X5+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4465EXK-T  
    		SC-70;5 pin;
    Dwg: 21-0076E (PDF)
    Use pkgcode/variation: X5-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4465EXK+T  
    		SC-70;5 pin;
    Dwg: 21-0076E (PDF)
    Use pkgcode/variation: X5+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4466 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4466EXK  
    		SC-70;5 pin;
    Dwg: 21-0076E (PDF)
    Use pkgcode/variation: X5-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4466EXK+  
    		SC-70;5 pin;
    Dwg: 21-0076E (PDF)
    Use pkgcode/variation: X5+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4466EXK-T  
    		SC-70;5 pin;
    Dwg: 21-0076E (PDF)
    Use pkgcode/variation: X5-1*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4466EXK+T  
    		SC-70;5 pin;
    Dwg: 21-0076E (PDF)
    Use pkgcode/variation: X5+1*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4467 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4467EKA+  
    		SOT-23;8 pin;
    Dwg: 21-0078H (PDF)
    Use pkgcode/variation: K8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4467EKA  
    		SOT-23;8 pin;
    Dwg: 21-0078H (PDF)
    Use pkgcode/variation: K8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4467EKA+T  
    		SOT-23;8 pin;
    Dwg: 21-0078H (PDF)
    Use pkgcode/variation: K8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4467EKA-T  
    		SOT-23;8 pin;
    Dwg: 21-0078H (PDF)
    Use pkgcode/variation: K8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4468 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4468EKA+  
    		SOT-23;8 pin;
    Dwg: 21-0078H (PDF)
    Use pkgcode/variation: K8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4468EKA  
    		SOT-23;8 pin;
    Dwg: 21-0078H (PDF)
    Use pkgcode/variation: K8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4468EKA+T  
    		SOT-23;8 pin;
    Dwg: 21-0078H (PDF)
    Use pkgcode/variation: K8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4468EKA-T  
    		SOT-23;8 pin;
    Dwg: 21-0078H (PDF)
    Use pkgcode/variation: K8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4469 Free
    Sample    		 Buy
    Package: TYPE PINS FOOTPRINT
      DRAWING CODE/VAR *
    		Temp RoHS/Lead-Free?
    Materials Analysis
    MAX4469EKA  
    		SOT-23;8 pin;
    Dwg: 21-0078H (PDF)
    Use pkgcode/variation: K8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis
    MAX4469EKA+  
    		SOT-23;8 pin;
    Dwg: 21-0078H (PDF)
    Use pkgcode/variation: K8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4469EKA+T  
    		SOT-23;8 pin;
    Dwg: 21-0078H (PDF)
    Use pkgcode/variation: K8+5*
    		-40°C to +85°C RoHS/Lead-Free: Lead Free
    Materials Analysis
    MAX4469EKA-T  
    		SOT-23;8 pin;
    Dwg: 21-0078H (PDF)
    Use pkgcode/variation: K8-5*
    		-40°C to +85°C RoHS/Lead-Free: No
    Materials Analysis

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    Document Ref.: 19-1950; Rev 1; 2001-04-01
    This page last modified: 2007-06-14




             


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