ADSP-1008AKD - 8-Bit DSP Multiplier | Analog Devices
MPN: ADSP-1008AKD ✓ ActiveADSP-1008AKD Overview
A DSP multiplier-accumulator is a specialized arithmetic building block that multiplies two digital operands, accumulates the result, and presents the combined output to a digital processing system. It belongs to the DSP peripheral hierarchy, where multiplier-accumulators accelerate repetitive multiply-and-add operations used in filters, modulation, waveform generation, and other fixed-point signal-processing algorithms.
The ADSP-1008AKD combines an 8-bit processor-oriented data architecture with a 19-bit output bus and a narrow 4.75 V to 5.25 V supply range. Its 48-terminal package provides dedicated signal, control, clock, power, and output interfaces, while the hermetically sealed ceramic construction supports applications requiring a robust environmental package. The AKD designation identifies the supplied commercial-grade package configuration.
Because this is a dedicated DSP peripheral rather than a general-purpose processor, its value depends on integrating it with suitable data sources, memory, control logic, and clocking. The wide output bus can retain more numerical precision than the 8-bit operand format alone suggests, but actual system resolution depends on the internal rounding, scaling, and accumulator organization described in the manufacturer documentation.
Typical uses include digital filter coefficient processing, modulation and demodulation arithmetic, audio signal transformation, communications waveform generation, and industrial control loops where a hardware multiplier-accumulator reduces the processing burden on a host processor. The 5 V supply also makes it suitable for legacy digital systems designed around 4.75 V to 5.25 V logic levels.
System designers should verify clock requirements, control sequencing, operand scaling, and output timing against the manufacturer datasheet before laying out the PCB. The through-hole CDIP-48 footprint occupies substantially more board area than a modern surface-mount package, so long service life, ruggedized packaging, and prototype compatibility are more important design priorities than miniaturization.
This page consolidates verified distributor specifications, current sourcing information, package details, application guidance, and a conservative replacement assessment. It also distinguishes confirmed electrical facts from parameters that require verification from the original manufacturer datasheet, helping engineers avoid assuming compatibility from broad product-family similarity alone.
Drop-in alternatives for ADSP-1008AKD — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
No drop-in alternatives available for this product.
Request AlternativesADSP-1008AKD Specifications
| Device Type | 8-bit DSP multiplier, accumulator, and summer |
| Supply Voltage Range | 4.75 V to 5.25 V |
| Minimum Supply Voltage | 4.75 V |
| Maximum Supply Voltage | 5.25 V |
| Output Data Bus Width | 19 bit |
| Input Data Width | 8 bit |
| Number of Terminals | 48 |
| Package Code | DIP |
| Package Description | 48-terminal hermetically sealed ceramic DIP |
| Mounting Type | Through-hole |
| Temperature Grade | Commercial |
| Intended Use | Commercial |
| Package Shape | Rectangular |
| Observed Unit Price | $4.52 USD as of 2026-10-30 |
| Observed Inventory | 22,890 units as of 2026-10-30 |
ADSP-1008AKD rectangular Pin Configuration Guide
Pin configuration for ADSP-1008AKD (rectangular package). Pin numbering, functions, and connection diagrams are defined in the manufacturer datasheet. Refer to it for the exact footprint and soldering guidelines.
No detailed pinout data available for ADSP-1008AKD.
Refer to the datasheet for full pin configuration.
Typical Applications
ADSP-1008AKD is suitable for 6 applications: Digital Filter Arithmetic, Modulation and Demodulation, Audio Signal Transformation, Waveform Generation, Industrial Control Arithmetic, Communications Signal Processing.
Digital Filter Arithmetic
The ADSP-1008AKD fits legacy digital filter implementations because it is explicitly a multiplier, accumulator, and summer with an 8-bit input architecture and 19-bit output bus. It can implement product terms required by a tapped filter or related fixed-point arithmetic while reducing multiplier workload on a host processor. The 4.75 V to 5.25 V supply supports conventional 5 V digital logic, although coefficient scaling and internal accumulator width must be confirmed from the manufacturer datasheet.
Recommended
Modulation and Demodulation
The ADSP-1008AKD is applicable to modulation and demodulation arithmetic where repeated multiply-and-accumulate operations form the core of a fixed-point signal-processing path. Its dedicated multiplier-accumulator function and 19-bit output bus are relevant to product calculation, scaling, and accumulator output handling. The 5 V supply also simplifies integration with legacy communications logic, while clock-rate and throughput verification remains essential before replacing software multiplication with dedicated hardware.
Recommended
Audio Signal Transformation
The ADSP-1008AKD can support audio signal transformation when a system uses an 8-bit fixed-point multiplier-accumulator for filtering, mixing, or envelope arithmetic. Its multiplier, accumulator, and summer functions map directly to common sample-processing operations, while the 19-bit output bus provides additional numerical headroom for intermediate results. System designers must align the 4.75 V to 5.25 V supply with existing audio-control logic and verify scaling to prevent clipping or loss of precision.
Recommended
Waveform Generation
The ADSP-1008AKD is relevant to legacy waveform-generation systems that calculate successive sample values through multiplier-accumulator operations. The dedicated arithmetic block can offload repetitive product-and-sum calculations from a digital controller, while the 19-bit output bus can carry intermediate results with greater resolution than the stated 8-bit operand format. The application requires confirmation of clock rate, output timing, data scaling, and required update interval from the original manufacturer documentation.
Recommended
Industrial Control Arithmetic
The ADSP-1008AKD can serve as a dedicated arithmetic peripheral in legacy industrial control systems that require repeatable multiply-and-sum calculations. Its 5 V operating range, commercial temperature grade, and hermetically sealed ceramic CDIP-48 package are useful attributes for equipment designed around through-hole industrial electronics. Integration still depends on control-signal timing, output bus mapping, thermal limits, and the manufacturer's verified operating-temperature range, which is not present in the supplied source excerpts.
Recommended
Communications Signal Processing
The ADSP-1008AKD is suited to communications signal-processing blocks requiring dedicated multiplication, accumulation, and summation in a fixed-point architecture. The 19-bit output bus is relevant when intermediate products require more precision than the 8-bit operand interface, and the 4.75 V to 5.25 V supply accommodates established 5 V logic systems. A production design must verify throughput, clocking, bus timing, and numerical conventions against the original datasheet rather than assuming compatibility with a general-purpose DSP.
Recommended
Recommended Products Summary
Engineering reference data for ADSP-1008AKD — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADSP-1081A | ADSP-2100AKG | ADSP-21990BBC |
|---|---|---|---|---|
| Brand | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
Key Differentiators
- Confirmed dedicated multiplier-accumulator function (vs ADSP-1081A)
- Confirmed 19-bit output interface (vs ADSP-2100AKG)
- Verified 48-terminal hermetically sealed ceramic package (vs ADSP-21990BBC)
- Documented single-unit sourcing snapshot (vs ADSP-1081A)
Design Notes
Do not begin layout from marketplace package labels alone. The verified sources identify a 48-terminal DIP or hermetically sealed CDIP-48, but they do not provide the individual pin assignments. Download the original manufacturer datasheet and cross-check every power, ground, clock, operand, control, and output connection against the exact mechanical drawing. Socketed prototyping may facilitate replacement, while a soldered design should use the verified row spacing and ceramic package dimensions.
Design the power rail for the documented 4.75 V to 5.25 V operating range and account for supply tolerances, startup behavior, and the power requirements of every connected logic device. The source data does not state current consumption, so the maximum supply current cannot be calculated responsibly. Validate the power budget against the original datasheet and use local bypass capacitors and return-current paths appropriate for a 48-pin mixed-signal arithmetic package.
Do not treat the ADSP-1081A, ADSP-2100AKG, or ADSP-21990BBC as drop-in replacements merely because they are associated with the same supplier listing or product family. The verified cross-reference result explicitly states that datasheet and pinout checks are required. A valid substitution must preserve the CDIP-48 footprint, pin functions, 4.75 V to 5.25 V supply range, 19-bit output interface, arithmetic behavior, and control timing. Otherwise, treat the choice as a redesign rather than a replacement.
Establish clock and data timing from the manufacturer documentation before routing the 19-bit output bus and operand inputs. Keep high-speed or edge-sensitive traces short, provide a continuous ground reference, and route clock signals away from noisy analog and switching-supply paths. Because the verified excerpts do not state the operating frequency, rise-time requirements, or logic thresholds, these values must be obtained from the datasheet before defining impedance, isolation, or timing margins.
Compliance Information
The supplied verified data identifies a commercial temperature grade but provides no explicit RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification statements.
