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NAU85L40YG The Nuvoton Technology NAU85L40YG is an 8-channel Audio ADC with 24-bit resolution and a sampling rate of 48kHz. It features an I2C/I2S interface and operates within a supply voltage range of 1.2V to 1.98V.
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NAU85L40YG

Available from 1 distributors
Mfr Name: Nuvoton Technology
Nuvoton Technology
The Nuvoton Technology NAU85L40YG is an 8-channel Audio ADC with 24-bit resolution and a sampling rate of 48kHz. It features an I2C/I2S interface and operates within a supply voltage range of 1.2V to 1.98V.
✓ Total Stock: 300 pcs
$ Price Range: $3.86

NAU85L40YG Available from 1 distributor

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300 pcs
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NAU85L40YG Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Data Interface
Mounting Type
Number of Channels
Operating Temperature
Resolution (Bits)
Sampling Rate (Per Second)
Supplier Device Package
Supplier Package
Tape & Reel
Type
Voltage
Voltage Supply Source
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NAU85L40YG Description

Short technical summary and product information.

The NAU85L40YG from Nuvoton Technology Corporation is a high-quality, low-power, 4-channel (specified as 8 channels in product data) Analog-to-Digital Converter (ADC) designed for microphone array applications. It integrates programmable gain preamplifiers for quad differential microphones, reducing the need for external components.

 

This ADC offers a 24-bit resolution and supports sample rates up to 48kHz. It features a fractional Phase-Locked Loop (FLL) for accurate audio sample rate generation and provides standard audio data bus interfaces including I2S and TDM. The device operates with analog supply voltages from 1.6V to 2V, while the digital core can function down to 1.2V, enabling power conservation through software-controlled power-saving modes.

 

Key electrical characteristics include a Signal-to-Noise Ratio (SNR) of 101dB, a Total Harmonic Distortion plus Noise (THD+N) of 91dB, and channel crosstalk of -124dB under specified conditions. It also includes an I2C serial control interface.

 

The NAU85L40YG is specified for operation across a temperature range of -40°C to +85°C. It is supplied in a compact 28-lead QFN package, suitable for surface mount applications.

NAU85L40YG Quick Information

Product Type: Audio ADC
Canonical Name: NAU85L40YG Quad Audio ADC with Integrated FLL and Microphone Preamplifier
Subcategory: Special Purpose ADCs

NAU85L40YG Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

NAU85L40YG Estimated Pricing

Qty Low High
1+ $3.86 $3.86

Estimated market price range - modelled values for guidance only, not live distributor offers.

NAU85L40YG Features

  • 8-channel, 24-bit, 48kHz Audio ADC.
  • Integrated microphone preamplifiers.
  • On-chip Fractional-Locked Loop (FLL).
  • I2C and I2S serial control interface.
  • Operates from 1.2V to 1.98V supply.

NAU85L40YG Applications

  • Ideal for microphone array applications.
  • Suitable for low-power audio systems.
  • Used in portable electronic devices.
  • Enables high-fidelity audio capture.

NAU85L40YG FAQs

7 frequently asked questions generated from this part’s specifications.
What is the resolution of the NAU85L40YG audio ADC?

The NAU85L40YG audio ADC offers a resolution of 24 bits.

What is the maximum sampling rate supported by the NAU85L40YG?

The NAU85L40YG supports a maximum sampling rate of 48kHz.

What are the data interfaces available on the NAU85L40YG?

The NAU85L40YG supports I2C and I2S data interfaces.

What is the operating temperature range for the NAU85L40YG?

The NAU85L40YG operates within a temperature range of -40°C to 85°C.

What package type is the NAU85L40YG supplied in?

The NAU85L40YG is supplied in a 28-WFQFN Exposed Pad package.

Does the NAU85L40YG have integrated microphone preamplifiers?

Yes, the NAU85L40YG integrates programmable gain preamplifiers for microphones.

What is the Signal-to-Noise Ratio (SNR) of the NAU85L40YG?

The NAU85L40YG has a Signal-to-Noise Ratio (SNR) of 101dB.

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