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LMV1012 -
Analog Pre-Amplified IC's for High Gain Microphones
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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 |
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| Parameters | Values |
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| SNR |
61, 59, 60 dB |
| Noise A-Wt |
-82, -96, -89 dBV |
| Amp Gain |
15.6, 23.7, 7.8, 23.8 dB |
| Interface |
Analog Two Wire |
| Supply Current Per Channel |
0.141, 0.139, 0.18 mA |
| Supply Min |
2 Volt |
| Supply Max |
5 Volt |
| Special Features |
Available in 0.3mm package |
| Temperature Min |
-40 deg C |
| Temperature Max |
85 deg C |
Typical Performance
click for larger image
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Connection Diagram
click for larger image
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Datasheet
Package Availability, Models, Samples & Pricing
| Obsolete Part | Alternate Part or
Supplier | Source | Last Time Buy Date |
LMV1012-15 MDA
| NONE
| NATIONAL SEMICONDUCTOR
| 14 Nov 2008
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LMV1012-15 MDC
| NONE
| NATIONAL SEMICONDUCTOR
| 02 Aug 2006
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LMV1012TPX-07
| LMV1012UPX-25
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
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LMV1012UPX-15
| LMV1012UPX-25
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
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LMV1012UPX-20
| LMV1012UPX-25
| NATIONAL SEMICONDUCTOR
| 16 Nov 2008
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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) |
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LMV1012TPX-15 | CMOS7 | 0 | 18406 | 0 | 0 | 1089000 | 4 | 309006723
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LMV1012TPX-25 | CMOS7 | 0 | 18406 | 0 | 0 | 1089000 | 4 | 309006723
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LMV1012UPX-07 | CMOS7 | 0 | 18406 | 0 | 0 | 1089000 | 4 | 309006723
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LMV1012UPX-20 | CMOS7 | 0 | 18406 | 0 | 0 | 1089000 | 4 | 309006723
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LMV1012UPX-25 | CMOS7 | 0 | 18406 | 0 | 0 | 1089000 | 4 | 309006723
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LMV1012XPX-15 | CMOS7 | 0 | 18406 | 0 | 0 | 1089000 | 4 | 309006723
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LMV1012XPX-25 | CMOS7 | 0 | 18406 | 0 | 0 | 1089000 | 4 | 309006723
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Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR.
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.
[Information as of 8-Nov-2009]
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RoHS Compliance Information
