DAC88BIEX - 15V Companding DAC | Analog Devices
Référence : DAC88BIEX ✓ ActifDAC88BIEX Présentation
A companding DAC is a digital-to-analog converter that applies a nonlinear input code relationship to produce an analog level with a selected transmission-law characteristic. This class of converter belongs to the broader data-converter hierarchy: digital-to-analog converter, data converter, mixed-signal IC, and semiconductor. The U-255 law is the defining functional feature identified for DAC88BIEX in the verified manufacturer-related datasheet result.
The verified data confirms a 15 V device designation and CDIP-18 package, while detailed electrical limits such as resolution, settling time, output current, reference voltage, noise, linearity, and power consumption were not included in the supplied search result. Those parameters must be confirmed in the complete DAC88BIEX datasheet before layout or production release. The listing describes the component as active data-acquisition hardware, and distributor results report availability and pricing, including a listed price of $13.62000 from icDirectory and a starting price of $14.3902 from LCSC.
Typical engineering uses include compact industrial data-acquisition systems, telemetry interfaces, and legacy U-255-law signal chains where the receiving equipment expects a companding DAC. The device should be treated as a specialized converter rather than substituted for a general-purpose audio DAC. External clocking, reference, output conditioning, grounding, and decoupling must follow the datasheet recommended circuit.
For new designs, verify availability, temperature grade, device revision, and electrical performance against the current manufacturer documentation. The supplied distributor evidence is sufficient for identity, category, package, function, and commercial leads, but not for unreported pin names or full timing specifications. The complete pin map is therefore left as in the dedicated pinout field until the official pin table is consulted.
This page consolidates verified distributor identity, pricing observations, package information, sourcing status, and application guidance while clearly separating confirmed facts from parameters that still require datasheet confirmation.
Alternatives de remplacement direct pour DAC88BIEX — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
[DATA_NEEDED: verified drop-in alternative 1]
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
[DATA_NEEDED: verified drop-in alternative 2]
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
[DATA_NEEDED: verified drop-in alternative 3]
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
[DATA_NEEDED: verified drop-in alternative 4]
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
[DATA_NEEDED: verified drop-in alternative 5]
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
DAC88BIEX Valeurs maximales et caractéristiques électriques
| Product Type | Companding digital-to-analog converter (DAC) |
| Manufacturer | Analog Devices |
| Manufacturer Description | COMDAC COMPANDING DAC |
| Companding Law | U-255 law |
| Rated Device Voltage | 15 V |
| Boîtier | CDIP-18 |
| Package Pin Count | 18 pins |
| Type de montage | Through-hole ceramic dual in-line package |
| Data Converter Category | ADCs/DACs, special purpose |
| Statut du cycle de vie | Active data acquisition |
| Reported Inventory | 22,500 units at icDirectory |
| Reported Price | $13.62000 at icDirectory |
| Alternative Reported Price | $14.3902 starting price at LCSC |
| Manufacturer/Source Context | Analog Devices; Rochester Electronics listing also identifies the part |
Guide de configuration des broches du DAC88BIEX 18 pins
Configuration des broches du DAC88BIEX (boîtier 18 pins). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour DAC88BIEX.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
DAC88BIEX convient pour 6 applications: U-255 Telemetry Interface, Industrial Data Acquisition, Legacy Signal Reconstruction, Instrument Control Output, Embedded Control and Monitoring, Special-Purpose Analog Output Card.
U-255 Telemetry Interface
DAC88BIEX fits a telemetry or legacy transmission path whose receiving system expects U-255-law companded codes rather than linear digital samples. The verified evidence identifies the device as a 15 V CDIP-18 U-255-law COMDAC, which makes the interface choice more important than generic converter bandwidth. Place it where the system clock, digital input coding, reference, and analog output conditioning follow the manufacturer’s recommended circuit. Because resolution, settling time, and output limits are not in the supplied data, validate those specifications before setting sample rate or analog gain. The principal benefit is direct architectural alignment with a U-255-compatible signal chain; the trade-off is that it is not a general-purpose audio or arbitrary waveform DAC.
Recommandé
Industrial Data Acquisition
DAC88BIEX is suitable for a compact industrial acquisition module that must generate a companded analog control or measurement signal. Its verified U-255-law classification and CDIP-18 package provide a concrete starting point for a through-hole acquisition design, while the 15 V designation identifies the supply class reported by the distributor listing. The converter should sit behind a defined digital interface and use the manufacturer-specified reference and output network. Engineers must confirm noise, linearity, settling behavior, and power requirements because those values are not present in the supplied search data. The practical benefit is compatibility with systems designed around U-255 coding; the limitation is reduced flexibility compared with a programmable linear DAC.
Recommandé
Legacy Signal Reconstruction
DAC88BIEX can be used where an existing instrument or control system expects a companded output from a digital source. This application is especially relevant when replacing or maintaining an older measurement chain whose digital representation follows the U-255 law. The converter should preserve the original code interpretation, clocking arrangement, reference behavior, and analog post-processing rather than being treated as a generic binary-to-voltage DAC. Verify the complete CDIP-18 pin map and electrical timing before layout because the supplied data does not include those details. The advantage is potential continuity with legacy equipment; the trade-off is limited availability of verified modern drop-in replacements and specialized software or firmware support.
Recommandé
Instrument Control Output
DAC88BIEX may serve as a dedicated analog output in laboratory or instrumentation systems that require a U-255-law control waveform. The verified product description places it in data acquisition and special-purpose ADCs/DACs, rather than high-fidelity audio, so engineers should match the system’s expected transfer function before selecting it. Use a stable reference and the manufacturer-recommended digital and analog layout to avoid code-dependent output errors. The supplied evidence does not specify resolution, settling time, output range, or noise, so those values must be obtained from the datasheet before setting instrument accuracy. This approach is useful for compatibility-focused legacy instruments, but a modern programmable DAC may be easier to support when the U-255 law is not mandatory.
Recommandé
Embedded Control and Monitoring
DAC88BIEX can be integrated into an embedded monitoring system where a controller must translate a digital code stream into a companded analog signal for downstream equipment. The CDIP-18 package is a through-hole format and may suit older industrial or laboratory boards, but package choice alone does not establish performance. Firmware must encode values according to the U-255 law, and the analog output path must be checked for settling, reference stability, and output loading. The verified data does not provide timing or accuracy limits, so sample-rate and control-loop claims should remain open. The benefit is legacy code-law compatibility; the design risk is dependence on a specialized converter whose complete replacement ecosystem is not established in the supplied sources.
Recommandé
Special-Purpose Analog Output Card
DAC88BIEX is a reasonable candidate for a dedicated analog-output card built around a U-255-law control interface. The verified CDIP-18 package and 15 V device designation provide the initial mechanical and supply framework, while the companding function narrows the card to systems that explicitly support that law. A practical implementation should isolate digital and analog returns, provide tested reference bypassing, and follow the datasheet’s recommended output network. The supplied evidence does not confirm pin assignments, output impedance, settling time, or temperature range, so those values are [DATA_NEEDED]. The result is a compatibility-oriented card rather than a universal DAC module; use a newer programmable converter only when code-law equivalence and external signal requirements are not needed.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour DAC88BIEX — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | [DATA_NEEDED: verified drop-in alternative 1] | [DATA_NEEDED: verified drop-in alternative 2] | [DATA_NEEDED: verified drop-in alternative 3] |
|---|---|---|---|---|
| Package | CDIP-18 | CDIP-18 required for verified drop-in status | CDIP-18 required for verified drop-in status | CDIP-18 required for verified drop-in status |
Principaux différenciateurs
- Specialized U-255-law companding DAC function (vs Generic linear DAC candidates)
- 18-pin CDIP-18 mechanical format (vs Modern surface-mount converter candidates)
- Observed commercial sourcing (vs No verified replacement candidates supplied)
Notes de conception
Do not substitute a generic linear DAC for DAC88BIEX without first proving that the replacement reproduces the U-255 code law. The converter’s digital input meaning, analog transfer function, and timing requirements are more important than a broad resolution or package match. Download the complete manufacturer datasheet, map every CDIP-18 pin, and compare reference, clock, output, and supply behavior before changing a PCB.
Follow the manufacturer’s recommended layout for the CDIP-18 device, including short digital traces, controlled return paths, and placement of bypass capacitors close to the relevant supply and reference pins. The supplied data confirms the package but does not provide the pin table or capacitor values, so do not invent those assignments. Confirm pin names and decoupling requirements from the official datasheet before routing.
Validate the digital input code sequence and the analog output settling behavior as one complete signal path. U-255-law coding can produce a different relationship between digital code and analog voltage than a linear DAC, so a waveform that looks correct in firmware may still be wrong at the receiver. Use the manufacturer’s timing and output-loading limits to choose clocking, impedance, filtering, and measurement bandwidth.
Informations de conformité
The supplied verified data does not include authoritative RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations. The product is a data-acquisition integrated circuit and no AEC-Q100 qualification was identified in the supplied data.
