Products / Microphones / SBM140B

The groundbreaking

SBM140B

The lowest noise & highest dynamic range MEMS microphone

The SBM140B pairs an 84dB SNR with a 146dB AOP — delivering a 136dB dynamic range that captures the quietest detail and the loudest peak without clipping or compression. Sampling now to select customers

rue studio-quality recording in a device that fits on a fingertip.
SBM140B — optical MEMS, digital output.

136dB dynamic range

From near silence to a 146dB DSPL acoustic overload point (AOP) in a single configuration - capture everything without clipping

84dB SNR

10dBA equivalent input noise means quiet and distant sounds stay clean, detailed and audible.

24-bit audio

Full-resolution digital output preserves every nuance that the MEMS diaphragm captures and sends it straight to your processor.

I2S, PDM, TDM

Flexible digital interfaces that drop into existing designs and scale to large microphone arrays.

Compare the

SBM140B-series

Parameter

SBM140B PDM

SBM140B I2S

SBM140B TDM

Interface

PDM

I2S

TDM

Interface

PDM

I2S

TDM

Port

Bottom

Bottom

Bottom

Port

Bottom

Bottom

Bottom

Form factor

Flex / SMD

Flex / SMD

Flex / SMD

Form factor

Flex / SMD

Flex / SMD

Flex / SMD

Target applications

Phones, laptops & TWS

Pro & consumer audio

Arrays

Target applications

Phones, laptops & TWS

Pro & consumer audio

Arrays

Status

Production Q1 '27

Production Q1 '27

Production Q1 '27

Status

Production Q1 '27

Production Q1 '27

Production Q1 '27

Channels

2 channel

2 channel

8 channel bus

Channels

2 channel

2 channel

8 channel bus

Datasheet

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Datasheet

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SBM140B

General Specifications

Acoustic Overload Point

146dB SPL | 1 kHz 10% THD

Acoustic Overload Point

146dB SPL | 1 kHz 10% THD

Signal-to-Noise Ratio

84dBA | 20 Hz to 20 kHz

Signal-to-Noise Ratio

84dBA | 20 Hz to 20 kHz

Signal-to-Noise Ratio

84dBA | 20 Hz to 20 kHz

Sensitivity

-46dBFS | 94dB 1 kHz

Sensitivity

-46dBFS | 94dB 1 kHz

Sensitivity

-46dBFS | 94dB 1 kHz

Equivalent Input Noise

10dBA SPL | 20 Hz to 20 kHz

Equivalent Input Noise

10dBA SPL | 20 Hz to 20 kHz

Low frequency roll-off

10 Hz | -3dB re. 1 kHz

Low frequency roll-off

10 Hz | -3dB re. 1 kHz

Package size

6 x 3.8 x4 mm

Package size

6 x 3.8 x4 mm

Package size

6 x 3.8 x4 mm

Supply voltage

1.8 V

Supply voltage

1.8 V

Supply voltage

1.8 V

Dynamic range

136dB

Dynamic range

136dB

Sampling rate

Up to 192 kHz

Sampling rate

Up to 192 kHz

Digital interfaces

PDM, I2S & 8-channel TDM

Digital interfaces

PDM, I2S & 8-channel TDM

Digital interfaces

PDM, I2S & 8-channel TDM

Port location

Bottom port

Port location

Bottom port

Port location

Bottom port

Clock frequency

1.5 MHz to 12 MHz

Clock frequency

1.5 MHz to 12 MHz

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Let us help you find the best sensiBel microphone for your application.