ADSP-1081AJD - 8x8 CMOS Multiplier | Analog Devices
Артикул: ADSP-1081AJD ✗ Снят с производстваADSP-1081AJD Обзор
A digital multiplier is a specialized arithmetic IC that multiplies two binary numbers and produces a wider product word. In the product taxonomy, the ADSP-1081AJD belongs to the DSP and arithmetic-processing hierarchy rather than the general-purpose microprocessor category. This distinction matters because a fixed-function multiplier can execute a tightly defined arithmetic operation without the memory, instruction sequencing, and software overhead of a general-purpose digital signal processor.
The verified product information identifies the ADSP-1081AJD as an 8 x 8 CMOS multiplier with a 40-terminal, through-hole CDIP package. Commercial temperature grade is reported by the product listing. The ceramic side-brazed construction also distinguishes it from plastic DIP devices, providing a package option commonly considered when environmental robustness, thermal behavior, or long service life is important. Detailed electrical limits are not available in the supplied verified dataset and must be confirmed from the manufacturer datasheet before design release.
Internally, an 8 x 8 multiplier can accept two 8-bit operands and generate a 16-bit product. This arithmetic width makes the component useful in fixed-point signal-processing chains, control calculations, test systems, scaling operations, and custom digital signal conditioning. Because the ADSP-1081AJD is a dedicated DSP peripheral rather than a programmable processor, it can provide a compact functional block when the surrounding system already handles sequencing and control.
Potential uses include real-time signal scaling, automatic-range conversion, analog front-end compensation, industrial process measurement, communications-channel equalization, and precision test equipment. In these systems, the multiplier can implement products such as gain-and-signal terms, correlation-related terms, or coordinate transformations. System-level accuracy still depends on the input and output word definitions, arithmetic sign convention, pipeline requirements, and whether additional rounding or saturation logic is required.
The primary design consideration is that a CDIP-40 package requires through-hole PCB accommodation and careful mechanical clearance. Designers should preserve the manufacturer's recommended pin orientation, verify the full electrical specification and timing limits, and provide suitable bypassing around the device. This page distinguishes verified facts from unavailable parameters so that obsolete or legacy designs can be reviewed without confusing package information with unverified electrical claims.
This product record combines the supplied distributor and marketplace information, package attributes, pricing context, application guidance, and strict source tracking. It highlights which engineering data remains unavailable and avoids presenting unverified electrical specifications as confirmed manufacturer limits.
Аналоги без доработки для ADSP-1081AJD — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Для этого товара нет аналогов без доработки.
Запросить аналогиADSP-1081AJD Характеристики
| Device Type | 8 x 8 CMOS digital multiplier |
| Product Classification | DSP peripheral |
| Multiplier Resolution | 8 x 8 bits |
| Maximum Product Width | 16 bits |
| Package Type | Ceramic DIP-40 (CDIP40) |
| Package Construction | Hermetically sealed, side-brazed ceramic |
| Terminal Count | 40 terminals |
| Способ монтажа | Through-hole |
| Package Shape | Rectangular |
| Temperature Grade | Commercial |
| Device Category | Linear analog multiplier |
| Process Technology | CMOS |
Руководство по цоколевке ADSP-1081AJD в корпусе rectangular
Цоколевка для ADSP-1081AJD (корпус rectangular). Нумерация выводов, функции и схемы подключения определены в техническом описании производителя. Обратитесь к нему для точного посадочного места и рекомендаций по пайке.
Нет подробных данных о распиновке для ADSP-1081AJD.
Обратитесь к даташиту для полной конфигурации выводов.
Типичное применение
ADSP-1081AJD подходит для 6 применениеs: Fixed-Point Signal Scaling, Industrial Process Measurement, Communications Channel Equalization, Precision Test and Measurement, Automatic-Range Conversion, Legacy Digital Control.
Fixed-Point Signal Scaling
The ADSP-1081AJD is suitable for fixed-point signal-scaling blocks because it implements an 8 x 8 CMOS multiplication operation in a dedicated DSP peripheral. It can multiply one 8-bit sample or coefficient by another 8-bit operand and produce a full 16-bit product before external rounding and truncation. This approach is useful in legacy measurement and control equipment where a fixed-function multiplier reduces the computational burden on the surrounding processor. Before implementation, engineers must verify from the manufacturer datasheet the operand timing, output update behavior, supply voltage, and any required output registers.
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Industrial Process Measurement
The ADSP-1081AJD can support arithmetic processing in industrial process-measurement systems that combine an 8-bit sensor value with an 8-bit calibration coefficient or control term. Its dedicated multiplier function permits a compact implementation of compensation, normalization, or gain calculation in legacy controller architectures. The hermetically sealed, side-brazed ceramic CDIP-40 package is a notable option for equipment assembled in DIP form. Actual environmental suitability must be checked against the confirmed commercial temperature grade, while supply rails, timing margins, and long-term stability require the official electrical specifications.
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Communications Channel Equalization
ADSP-1081AJD is applicable to legacy communications equipment that performs small-word fixed-point multiplication for channel weighting, correlation terms, or coefficient updates. Two 8-bit operands can produce a 16-bit product, providing enough resolution for a basic arithmetic stage when followed by carefully designed scaling. The component is most attractive where maintaining a DIP-based architecture is preferable to redesigning around a surface-mount DSP. Engineers should verify input-output timing, clock or latch requirements, and pipeline behavior because the supplied listings identify the arithmetic function and package but not the detailed interface.
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Precision Test and Measurement
The ADSP-1081AJD can serve as an arithmetic building block in legacy test and measurement instruments that calculate products between digitized readings and programmed coefficients. The dedicated 8 x 8 CMOS multiplier can support gain adjustment, reference scaling, or compensation calculations without assigning every operation to a general-purpose processor. Its ceramic CDIP-40 package is useful for repairable laboratory systems and DIP-compatible test fixtures. Design verification should include checking the manufacturer's timing diagram, output word format, power requirements, and whether external latches are necessary for synchronous operation.
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Automatic-Range Conversion
ADSP-1081AJD can participate in automatic-range conversion by multiplying a signed measurement by a programmable scale factor and retaining the wider product for subsequent rounding or saturation. Its 8 x 8 operand format and 16-bit full product are suitable for compact fixed-point conversion stages in older control and acquisition systems. The function must be coordinated with the system sign convention, overflow strategy, and update timing. Since the verified dataset does not specify propagation delay or output registration, the official manufacturer datasheet is required before this application can be released to production.
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Legacy Digital Control
The ADSP-1081AJD is suitable for fixed-function arithmetic in legacy digital-control systems, particularly where two controller variables must be multiplied to form a nonlinear compensation or feed-forward term. The dedicated multiplier can operate alongside a separate sequencer or controller without introducing general-purpose instruction-fetch overhead. Its 40-pin ceramic through-hole package supports DIP-based board architectures, although modern alternatives may offer lower power and smaller physical size. Confirm the device's exact electrical limits, commercial temperature range, and timing before using it in a new safety- or mission-critical control design.
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Справочные инженерные данные для ADSP-1081AJD — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар |
|---|---|
| Brand | Analog Devices |
| Package | Ceramic DIP-40 (CDIP40) |
| Device Type | 8 x 8 CMOS digital multiplier |
| Product Classification | DSP peripheral |
| Multiplier Resolution | 8 x 8 bits |
| Full Product Width | 16 bits |
| Temperature Grade | Commercial |
| Mounting Style | Through-hole |
| Terminal Count | 40 terminals |
| Verified Unit Price | $9.7133 as of 2026-10-30 |
Заметки по проектированию
Use the manufacturer's CDIP-40 mechanical drawing when creating or inspecting the PCB footprint. The ADSP-1081AJD is a through-hole ceramic DIP, not a surface-mount part, so the board requires a compatible row spacing and plated through-holes. Verify pin-one orientation against the package marking and schematic, preserve adequate body clearance, and check whether an existing board uses a socket or a direct soldered installation.
Do not assume that a similarly named ADSP multiplier is a drop-in replacement. The verified target is a hermetically sealed, side-brazed ceramic CDIP-40, and the package suffix on related listings can denote a different construction. Before substitution, compare every pin name and direction, supply pins, logic thresholds, propagation timing, output width, and temperature range against the official datasheets for both devices.
Supply voltage, input logic levels, quiescent current, and dynamic power are not supplied in the verified dataset and must be obtained from the manufacturer datasheet. Check the exact power rails and sequencing requirements against the surrounding legacy logic. Place the required bypass capacitors at the device's supply pins, provide a low-impedance return path, and avoid allowing switching transients from external loads to disturb the multiplier's reference or logic rails.
Treat the full 8 x 8 result as a 16-bit product only after confirming the device's signed or unsigned arithmetic convention and output timing from the datasheet. External truncation, rounding, overflow, and saturation logic may be required. If the surrounding circuit samples the result synchronously, verify whether the multiplier requires input latches or a defined enable interval rather than assuming combinational operation.
Информация о соответствии
The supplied verified data identifies commercial temperature grade but does not provide RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. No compliance claims are inferred from the package or marketplace listings.
