The LMV1032-06/LMV1032-15/LMV1032-25 are audio amplifiers series for small form factor electret microphones. It is designed to replace the JFET preamp currently being used. The LMV1032 series is ideal for extended battery life applications, such as a blue- tooth communication link. The addition of a third pin in electret microphones that incorporate the LMV1032 allows for a dramatic reduction in supply current as compared to the JFET equipped electret microphone. Microphone supply cur- rent is thus reduced to 60 µA, assuring longer battery life.
The LMV1032 is an audio amplifier series specifically designed for 3-wire analog electret microphones. It serves as a replacement for JFET preamps, offering significant advantages in battery life applications such as Bluetooth communication links by reducing microphone supply current to 60 pA.
The device operates with fixed voltage gains of 6 dB, 15 dB, and 25 dB across a supply voltage range of 1.7V to 5V. It is packaged in a space-saving 4-bump ultra thin micro SMD lead-free package.
| Supply Voltage Range | 1.7V to 5V |
|---|---|
| Microphone Supply Current | 60 pA |
| Signal to Noise Ratio (LMV1032-06) | 58 dB |
| Power Supply Rejection Ratio (PSRR) | 84 dB |
| Output Impedance | <200 Ohms |
| Operating Temperature Range | -40°C to 85°C |
| Package Type | 1.13 x 1.13 x 0.4mm Ultra Thin micro SMD lead free (NOPB) |
It is designed for small form factor electret microphones, ideal for extended battery life applications like Bluetooth communication links.
The LMV1032 series offers fixed voltage gains of 6 dB, 15 dB, and 25 dB.
The typical supply current is 60 pA at a 1.7V supply.