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Analog Devices AD1938WBSTZ-RL — DC-DC Power Modules

AD1938WBSTZ-RL Automotive Audio Codec, 24-bit 4 ADC / 8 DAC

MPNAD1938WBSTZ-RL
End of Life

Analog Devices AD1938WBSTZ-RL, General Purpose audio codec, Automotive grade, 24 b resolution, 4 ADC / 8 DAC, Sigma Delta, Serial interface, 48-LQFP (7x7 mm), -40°C to 105°C, 3V to 3.6V supply.

$12.79Ref. price · indicative, final on quote
Analog Devices AD1938WBSTZ-RL datasheet (PDF)
Packaging48-LQFP
RoHSROHS3 Compliant
Independent supplier — new & surplus stockAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

AD1938WBSTZ-RL specifications
ParameterValue
TypeGeneral Purpose
MountingSurface Mount
Voltage - supply, analog3V ~ 3.6V
Voltage - supply, digital3V ~ 3.6V
Data interfaceSerial
Operating temperature-40°C ~ 105°C
GradeAutomotive
PackageTape & Reel (TR); Cut Tape (CT)
Sigma deltaYes
Case48-LQFP
Resolution24 b
Number of ADCs (DACs)4 / 8
S (N ratio, ADCs, DACs (db) typ)94 / 94
Dynamic range, ADCs (DACs (db) typ)105 / 106

Product details

Automotive audio codec with 4 ADC / 8 DAC channels

The Analog Devices AD1938WBSTZ-RL is a General Purpose sigma-delta audio codec rated Automotive grade, delivering 24-bit resolution across 4 ADC and 8 DAC channels in a single 48-LQFP (7x7 mm) package. Typical SNR is 94 dB for both ADC and DAC paths, while dynamic range reaches 105 dB (ADC) and 106 dB (DAC).

The 4 ADC / 8 DAC channel count handles four inputs and drives eight outputs. The 105 dB / 106 dB dynamic range sets the noise floor for 24-bit audio.

Frequently asked questions

Is the AD1938WBSTZ-RL automotive qualified?

Yes, the AD1938WBSTZ-RL is listed with Grade = Automotive, making it suitable for automotive ECU and infotainment applications.

What is the difference between AD1938WBSTZ-RL and AD1938WBSTZ?

The AD1938WBSTZ-RL ships in Tape & Reel (and Cut Tape), while the AD1938WBSTZ ships in Tray. The die, automotive grade, 24-bit resolution, 4 ADC / 8 DAC channels, dynamic range, and temperature range are identical between the two.

What are the equivalents to the AD1938WBSTZ-RL?

The closest functional equivalent is the AD1937WBSTZ-RL, which offers the same 4 ADC / 8 DAC channel count and 24-bit resolution but with a wider -40°C to 125°C temperature range and higher DAC dynamic range (110 dB typ). The AD1836AASZRL is a 4 ADC / 6 DAC variant with a commercial temperature range (85°C max) and a higher 4.75V supply minimum.