Analog Devices Inc. AD1865N

Mfr. Part

AD1865N

Manufacturer

Analog Devices Inc ADI. Y-IC is a quality distributor for ADI products and we will provide you with the best products and services

Detailed Description

Dual 18 bit stereo audio digital to analog converter in a 24 pin PDIP through hole package. Classic R 2R current output architecture favored in high fidelity audio. Ideal for replacement in legacy gear and for new builds that want the well known AD1865 sound. Main category Integrated Circuits. Small classification Data Acquisition Digital to Analog Converters DAC. Base product number AD1865. Package style Tube. Available quantity 1526 units in stock

Key Features

18 bit resolution per channel stereo

True R 2R ladder current output DACs left and right channels

Low distortion and low noise performance suitable for high fidelity audio

Monotonic performance over the full resolution typical

Serial audio data input and timing control compatible with common legacy audio data formats up to 18 bit word length

Separate left and right data latches for precise channel timing

Through hole 24 PDIP package 0.600 inch body width for easy prototyping and service

Proven legacy design with wide community adoption

Base product number AD1865

Key Advantages

Natural and highly regarded audio character valued by audiophiles

Current output allows flexible external I V conversion and analog filter design

Through hole PDIP enables easy hand assembly rework and long term serviceability

Deterministic linear R 2R behavior that many designers prefer in certain audio designs

Stable supply via Y-IC with professional support and fast response

Packaging

Type and form factor 24 PDIP dual in line plastic through hole package

Size 0.600 inch 15.24 mm body width standard 2.54 mm lead pitch 12 leads per side 24 total

Supplier device package 24 PDIP also noted as 24 DIP 0.600 inch

Material epoxy molded plastic body with plated copper alloy leads finish varies by lot and compliance version

Mounting through hole suitable for wave solder or hand solder

Pin configuration 24 leads including digital interface pins left and right data bit clock latch or word control power and ground current outputs and references see datasheet for exact pinout

Thermal characteristics low power device in a standard PDIP no heatsink needed in normal audio use thermal path via leads and PCB recommended operation within the rated ambient range for N grade

Electrical properties overview dual 18 bit resolution current output per channel requires external I V stage logic interface compatible with 5 V domain supplies and limits per datasheet consult the datasheet for exact operating voltages timing and absolute maximum ratings

Shipping packaging Tube for safe handling and storage

Lifecycle

Product status legacy audio DAC many grades and date codes are limited in supply

Risk of discontinuation high this is an older device and often listed as obsolete or last time buy by the manufacturer depending on specific grade

Same family options AD1865NJ and AD1865NK tighter grade variants when available check availability with Y-IC

Related ADI devices AD1862 20 bit dual R 2R AD1864 16 bit dual R 2R note these are not pin compatible

Modern alternatives for new designs not pin compatible examples ADI AD1955 AD1853 ADAU1966 TI PCM179x series AKM AK449x series ESS ES90xx series selection depends on required features and performance

Pin to pin equivalents no direct modern drop in replacement is known

If you need a curated cross list footprint checks or second source advice contact our sales team via the Y-IC website for detailed support

Key Application Areas

High end audio DACs and standalone DAC units

CD players transports and non oversampling NOS audio designs

DIY audio builds and restoration of vintage audio equipment

Professional audio processors and recorders that use R 2R DACs

Test and measurement systems that prefer deterministic current output DAC behavior

Musical instruments and legacy digital audio gear service parts

Datasheet

Y-IC hosts the most authoritative datasheet for this product on our website. Download it on this page to get the full pin map timing diagrams recommended operating conditions and application guidance

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