Product Overview
Up for sale is a genuine, New Old Stock (NOS) AKM AK5391VS Enhanced Dual-Bit Analog-to-Digital Converter (ADC) integrated circuit, manufactured by Asahi Kasei Microdevices (AKM).The AK5391VS is a legendary 24-bit studio-grade converter celebrated for its unique dual-bit delta-sigma architecture, which delivers an incredibly musical, wide analog soundstage. It was historically chosen as the primary conversion chip for world-class pro-audio gear like the Apogee Rosetta AD and flagship Lexicon processors.
This is a pristine, vintage replacement chip—perfect for high-end studio gear repairs, mastering converter maintenance, or audiophile DIY recording projects.
Technical Specifications (Per Official AKM Datasheet)
- Manufacturer: Asahi Kasei Microdevices / AKM
- Part Number: AK5391VS (SOP28 Package)
- Type: 24-Bit Enhanced Dual-Bit Delta-Sigma ADC
- Sampling Rate: Up to 54 kHz (Optimized for pristine 44.1kHz / 48kHz studio mastering)
- Dynamic Range: 117 dB
- Signal-to-Noise Ratio (SNR): 117 dB
- THD+N (Total Harmonic Distortion): -105 dB
- Input Stage: Full Differential Analog Inputs
- Digital Filter: On-chip linear phase anti-alias filter (Stopband Attenuation: 110dB)
- Package Type: 28-Pin SOP (Surface Mount Layout)
Condition
100% Brand New Old Stock (NOS): Factory-fresh silicon, unused and never soldered. Pins are completely straight and immaculate.