Analog Devices Inc. AD1864P

Mfr. Part

AD1864P

Manufacturer

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

Detailed Description

AD1864P is a dual-channel (stereo) 18-bit audio DAC from the AD1864 series, designed for high-fidelity audio conversion.

Package is 28-PLCC (J‑lead), surface-mount, 11.51 mm x 11.51 mm nominal.

Operates over −25°C to +70°C.

Uses separate analog and digital dual ± power rails: ±4.75 V to ±13.2 V (wide supply range for legacy audio designs).

Current-output audio DAC that typically requires an external I/V (current-to-voltage) stage.

RoHS status: Non-compliant (leaded finish).

Ideal for classic R‑2R ladder DAC performance and sound quality in legacy or repair/maintenance applications.

Key Features

Resolution: 18-bit

Channels: 2 (stereo)

Architecture: R‑2R ladder (classic audio DAC approach)

Supply configuration: Separate analog and digital; dual ± rails, ±4.75 V to ±13.2 V

Package: 28‑PLCC (LCC, J‑lead), surface mount

Operating temperature: −25°C to +70°C

Series: AD1864

Input interface: Digital audio compatible for this family (see datasheet for exact timing and format)

Output type: Current output, external I/V converter recommended

RoHS: Non-compliant (Sn/Pb lead finish)

Key Advantages

True 18‑bit performance class for precise level resolution in audio paths.

R‑2R ladder sound signature with low latency and deterministic phase (no noise‑shaping artifacts typical of delta‑sigma).

Wide dual ± supply range simplifies drop‑in service for older equipment and gives headroom for analog stages.

Stereo integration in one IC reduces board space versus dual mono devices.

Robust, mature solution suitable for maintenance, replacement, and restoration of vintage high‑end audio gear.

Packaging

Type: Integrated Circuit, plastic leaded chip carrier (PLCC), J‑leads for surface mount

Material: Molded plastic body with copper leadframe; tin/lead plated leads (RoHS non‑compliant)

Size: 28‑PLCC, 11.51 mm x 11.51 mm nominal body outline (JEDEC standard)

Pin configuration: 28 J‑leads; includes L/R current outputs, reference pins, digital inputs, and control lines (see datasheet for exact pinout)

Mounting: Surface mount (LCC/J‑lead), compatible with standard reflow profiles appropriate for leaded finishes

Thermal characteristics: Rated for −25°C to +70°C ambient; use solid ground plane and adequate copper for heat spreading; consult datasheet for thermal resistance

Electrical properties summary: 18‑bit resolution, 2 channels, dual ± analog/digital supplies (±4.75 V to ±13.2 V), current‑output DAC

Lifecycle

Status: Mature/legacy audio DAC; many builds now rely on newer delta‑sigma converters. Availability may be limited; not recommended for new high‑volume designs in many cases. Ideal for service/replacement and legacy designs.

Potential equivalents or alternatives (verify pinout, package, and performance before use):

- ADI AD1864N (DIP variant of the same family; different package, similar function)

- ADI AD1865 (18‑bit stereo R‑2R ladder DAC; different pinout/package options)

- ADI AD1862 (20‑bit stereo R‑2R ladder DAC; higher resolution, different pinout)

- TI/Burr‑Brown PCM1702, PCM1704 (R‑2R audio DACs; different architecture details, not pin‑compatible)

- Modern delta‑sigma options (not pin‑compatible, different sound/performance profile): ADI AD1852, AD1955; AKM AK4396/AK4490 series; TI PCM179x series

If you need form‑fit replacements or vetted drop‑ins, please contact our sales team via the Y-IC website for the latest cross and inventory guidance.

Key Application Areas

High‑fidelity stereo audio paths in legacy gear (CD players, DACs, preamps, integrated amplifiers)

Professional and studio audio equipment maintenance and restoration

Test and measurement audio signal paths requiring deterministic latency

Vintage hi‑fi upgrades and repairs where R‑2R characteristics are desired

Industrial audio systems using dual ± supply rails

Datasheet

Y-IC hosts the most authoritative and up‑to‑date datasheet for AD1864P on our product page. We recommend you download the datasheet directly from this page for complete electrical specs, timing, and pinout.

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In stock quantity: 1980 units available for immediate order (subject to prior sale).

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