LMV1012 - Analog Pre-Amplified IC's for High Gain Microphones

Datasheet Packaging Samples & Pricing Reliability Design Tools Knowledge Base

Features

(Typical LMV1012-15, 2.2V supply, RL = 2.2 k, C = 2.2 µF, VIN = 18 mVPP, unless otherwise specified)

Supply voltage

2V - 5V

Supply current

<180 µA

Signal to noise ratio (A-weighted)

60 dB

Output voltage noise (A-weighted)

-89 dBV

Total harmonic distortion

0.09%
  • Voltage gain

    LMV1012-07

    7.8 dB

    LMV1012-15

    15.6 dB

    LMV1012-20

    20.9 dB

    LMV1012-25

    23.8 dB

Temperature range

-40°C to 85°C
  • Offered in 4-bump micro SMD packages

General Description

The LMV1012 is an audio amplifier series for small form factor electret microphones. More...


Applications

•Cellular phones
•Headsets
•Mobile communications
•Automotive accessories
•PDAs
•Accessory microphone products
  Typical Application
See Datasheet for Application Information

Parametric Table     expand
Parametric Table    collapse
SNR 59, 60, 61 dB
Noise A-Wt -84, -82, -96, -89 dBV
Amp Gain 20.9, 15.6, 23.7, 7.8, 23.8 dB
Interface Analog Two Wire
Supply Min 1.7, 2 Volt
Supply Max 5 Volt
Special Features Available in 0.3mm package
Temperature Min -40 deg C
Temperature Max 85 deg C
SNR 59, 60, 61 dB
Noise A-Wt -84, -82, -96, -89 dBV
Amp Gain 20.9, 15.6, 23.7, 7.8, 23.8 dB
Interface Analog Two Wire
Supply Current Per Channel 0.16, 0.139, 0.141, 0.18 mA
Supply Min 1.7, 2 Volt
Supply Max 5 Volt
Special Features Available in 0.3mm package
Temperature Min -40 deg C
Temperature Max 85 deg C
View Using Catalog


Typical Performance

click for larger image


  Additional Resources
Design Tools (see below)


Connection Diagram

click for larger image



Datasheet
RoHS Compliance Information Size in KbytesDate Click link below to Download
LMV1012 Analog Series: Pre-Amplified IC's for High Gain 2-Wire Microphones 877 Kbytes 5-Oct-05 View Online
Download

If you have trouble printing or viewing PDF file(s), see Printing Problems.


Package Availability, Models, Samples & Pricing
Part NumberPackageFactory Lead TimeModelsSamples &
Electronic
Orders		Budgetary PricingStd
Pack
Size		Package
Marking
Format
TypePinsSpec.MSL
Rating		Peak
Reflow		RoHS
Report		CAD
Symbols		WeeksQtyQty$US each
LMV1012TPX-07MICRO SMD4NOPB1260RoHS Download ObsoleteN/A
 
Buy Now 		1K+$0.42reel
of
3000		X
I
N/AN/A
LMV1012TPX-15MICRO SMD4NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.44reel
of
3000		X
I
12 weeksN/A
LMV1012TPX-25MICRO SMD4NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.44reel
of
3000		X
I
12 weeksN/A
LMV1012UPX-15MICRO SMD4NOPB1260RoHS Download ObsoleteN/A
 
Buy Now 		1K+$0.42reel
of
3000		X
I
N/AN/A
LMV1012UPX-20MICRO SMD4NOPB1260RoHS Download ObsoleteN/A
 
Buy Now 		1K+$0.42reel
of
3000		X
I
N/AN/A
LMV1012UPX-07MICRO SMD4NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.42reel
of
3000		X
I
16 weeksN/A
LMV1012UPX-25MICRO SMD4NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.42reel
of
3000		X
I
6 weeksN/A
LMV1012XPX-15MICRO SMD4NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.53reel
of
3000		X
I
16 weeksN/A
LMV1012XPX-25MICRO SMD4NOPB1260RoHS Download Full productionN/A
 
Buy Now 		1K+$0.55reel
of
3000		X
I
16 weeksN/A

Obsolete Parts

Obsolete PartAlternate Part or SupplierSourceLast Time Buy Date
LMV1012-15 MDA
NONE
NONE
11/14/2008
LMV1012-15 MDC
NONE
NONE
08/02/2006
LMV1012TPX-07
LMV1012UPX-25
NATIONAL SEMICONDUCTOR CORP
11/16/2008
LMV1012UPX-15
LMV1012UPX-25
NATIONAL SEMICONDUCTOR CORP
11/16/2008
LMV1012UPX-20
LMV1012UPX-25
NATIONAL SEMICONDUCTOR CORP
11/16/2008

General Description

The LMV1012 is an audio amplifier series for small form factor electret microphones. This 2-wire portfolio is designed to replace the JFET amplifier currently being used. The LMV1012 series is ideally suited for applications requiring high signal integrity in the presence of ambient or RF noise, such as in cellular communications. The LMV1012 audio amplifiers are guaranteed to operate over a 2.2V to 5.0V supply voltage range with fixed gains of 7.8 dB, 15.6 dB, 20.9 dB, and 23.8 dB. The devices offer excellent THD, gain accuracy and temperature stability as compared to a JFET microphone.

The LMV1012 series enables a two-pin electret microphone solution, which provides direct pin-to-pin compatibility with the existing JFET market.

The devices are offered in extremely thin space saving 4-bump micro SMD packages. The LMV1012XP is designed for 1.0 mm canisters and thicker ECM canisters. These extremely miniature packages are designed for electret condenser microphones (ECM) form factor.

Reliability Metrics

Part Number Process EFR Reject EFR Sample Size PPM * LTA Rejects LTA Device Hours FITS MTTF (Hours)
LMV1012TPX-07CMOS7013906008625005244736730
LMV1012TPX-15CMOS7013906008625005244736730
LMV1012TPX-25CMOS7013906008625005244736730
LMV1012UPX-07CMOS7013906008625005244736730
LMV1012UPX-15CMOS7013906008625005244736730
LMV1012UPX-20CMOS7013906008625005244736730
LMV1012UPX-25CMOS7013906008625005244736730
LMV1012XPX-15CMOS7013906008625005244736730
LMV1012XPX-25CMOS7013906008625005244736730

Note: The Early Failure Rates were calculated as point estimates. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.

For more information on Reliability Metrics, please click here.


Design Tools

TitleSize in Kbytes Date Click link below to Download    
Microphone Amplifiers Resources 10 Kbytes 7-Mar-2007 View    

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[Information as of 7-Jan-2009]