Features (Typical LMV1032-15, 1.7V Supply; Unless Otherwise Noted) Output voltage noise (A-weighted) -89 dBV Low supply current 60 µA Supply voltage 1.7V to 5V PSRR 70 dB Signal to noise ratio 61 dB Input capacitance 2 pF Input impedance >100 M Output impedance <200 Max input signal 170 mVPP Temperature range -40°C to 85°C Large Dome 4-Bump micro SMD package with improved adhesion technology.   Description The LMV1032s are an audio amplifier series for small form factor electret microphones. They are designed to replace the JFET preamp currently being used. The LMV1032 series is ideal for extended battery life applications, such as a Bluetooth communication link. The addition of a third pin to an electret microphones that incorporates an LMV1032 allows for a dramatic reduction in supply current as compared to the JFET equipped electret microphone. Microphone supply current is thus reduced to 60 µA, assuring longer battery life. The LMV1032 series is guaranteed for supply voltages from 1.7V to 5V, and has fixed voltage gains of 6 dB, 15 dB and 25 dB. The LMV1032 series offers low output impedance over the voice bandwidth, excellent power supply rejection (PSRR), and stability over temperature. The devices are offered in space saving 4-bump ultra thin micro SMD (TM) lead free packages and are thus ideally suited for the form factor of miniature electret microphone packages. These extremely miniature packages have the Large Dome Bump (LDB) technology. This micro SMD technology is designed for microphone PCBs requiring 1 kg adhesion criteria. Applications • Mobile communications - Bluetooth • Automotive accessories • Cellular phones • PDAs • Accessory microphone products

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Datasheet

Title		Size	Date	Other Language
	LMV1032-06/LMV1032-15/LMV1032-25 Amplifiers for 3-Wire Analog Electret Microphones	804 Kbytes	29-Nov-05

Featured Application Notes

Title		Size	Date	Other Language
	AN-1784: Application Note 1784 LMV1022 / LMV1023 Digital Output PDM Microphone Amplifier Demo Board User's Guide	3786 Kbytes	6-Mar-08

More Application Notes

Title		Size	Date	Other Language
	AN-1784: Application Note 1784 LMV1022 / LMV1023 Digital Output PDM Microphone Amplifier Demo Board User's Guide	3786 Kbytes	6-Mar-08

Reliability Metrics

Part Number	Process	EFR Reject	EFR Sample Size	PPM	LTA Rejects	LTA Device Hours	FITS	MTTF (Hours)
LMV1032UPX-06	CMOS7	0	18406	0	0	1089000	4	309006723
LMV1032UPX-15	CMOS7	0	18406	0	0	1089000	4	309006723
LMV1032UPX-25	CMOS7	0	18406	0	0	1089000	4	309006723
LMV1032UR-15	CMOS7	0	18406	0	0	1089000	4	309006723
LMV1032UR-25	CMOS7	0	18406	0	0	1089000	4	309006723
LMV1032URX-15	CMOS7	0	18406	0	0	1089000	4	309006723
LMV1032URX-25	CMOS7	0	18406	0	0	1089000	4	309006723

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.

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