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Analog Devices MAX9867ETJ+G3U — DC-DC Power Modules

MAX9867ETJ+G3U Stereo Audio Codec, 18-Bit, I2C, 32-TQFN

MPNMAX9867ETJ+G3U
End of Life

Analog Devices MAX9867ETJ+G3U stereo audio codec, 18 b resolution, 2 ADCs / 2 DACs, I²C/Serial data interface, 32-WFQFN exposed pad package, -40°C to 85°C operating temperature.

$3.45Ref. price · indicative, final on quote
Analog Devices MAX9867ETJ+G3U datasheet (PDF)
Packaging32-WFQFN Exposed Pad
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX9867ETJ+G3U specifications
ParameterValue
TypeStereo Audio
MountingSurface Mount
Voltage - supply, analog1.65V ~ 1.95V
Voltage - supply, digital1.65V ~ 1.95V
InterfaceI²C, Serial
Operating temperature-40°C ~ 85°C
PackageStrip
Sigma deltaYes
Case32-WFQFN Exposed Pad
Resolution18 b
Number of ADCs (DACs)2 / 2
Dynamic range, ADCs (DACs (db) typ)85 / 90

Product details

What this codec brings to the audio chain

The Analog Devices MAX9867ETJ+G3U is a low-power stereo audio codec built around an 18-bit sigma-delta converter core. It integrates two ADCs and two DACs, giving you a full duplex stereo path for line-level or microphone inputs and headphone/line outputs. The digital interface runs over I²C or a serial port, so it fits neatly into portable audio gear, VoIP terminals, intercoms, and industrial voice-annunciation boards where the supply rails sit between 1.65 V and 1.95 V.

Dynamic range — the spec that sets the noise floor

The ADC path delivers 85 dB dynamic range; the DAC path hits 90 dB.

Frequently asked questions

Does the MAX9867ETJ+G3U require external components?

Like any sigma-delta codec, the MAX9867ETJ+G3U needs external passive components for the analog input/output paths, decoupling capacitors on the supply rails, and a clock source. The exact bill of materials depends on the application circuit; the datasheet provides typical connection diagrams.

Are there alternatives to the MAX9867ETJ+G3U?

Within the same MAX9867 family, the MAX9867ETJ+T is the tape-and-reel variant of the same die and package — electrically identical, just a different shipping medium. For a pin-compatible alternative, check the MAX9867ETJ (without the +G3U suffix); that ordering code may carry a different packing option or lead-free finish. Confirm the exact suffix against your BOM before substituting.