DAC88BIEX - 15V Companding DAC | Analog Devices
料号： DAC88BIEX ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $13.62 | $13.62 |
| 10 | $13.62 | $136.20 |
| 100 | $13.62 | $1,362.00 |
| 500 | $13.62 | $6,810.00 |
| 1,000 | $13.62 | $13,620.00 |
DAC88BIEX 概述
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.
直接替换替代料： DAC88BIEX ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
[DATA_NEEDED: verified drop-in alternative 1]
✅ 直接替换📋 参考替代料（不在目录中）
[DATA_NEEDED: verified drop-in alternative 2]
✅ 直接替换📋 参考替代料（不在目录中）
[DATA_NEEDED: verified drop-in alternative 3]
✅ 直接替换📋 参考替代料（不在目录中）
[DATA_NEEDED: verified drop-in alternative 4]
✅ 直接替换📋 参考替代料（不在目录中）
[DATA_NEEDED: verified drop-in alternative 5]
✅ 直接替换📋 参考替代料（不在目录中）
DAC88BIEX 最大额定值与电气特性
| 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 |
| 封装 | CDIP-18 |
| Package Pin Count | 18 pins |
| 安装类型 | Through-hole ceramic dual in-line package |
| Data Converter Category | ADCs/DACs, special purpose |
| 生命周期状态 | 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 |
DAC88BIEX 18 pins 引脚配置指南
DAC88BIEX（18 pins 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： DAC88BIEX.
请参阅 数据手册 以查看完整引脚配置。
典型应用
DAC88BIEX 适用于 6 应用s: 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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： DAC88BIEX ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | [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 |
关键差异点
- Specialized U-255-law companding DAC function （对比 Generic linear DAC candidates)
- 18-pin CDIP-18 mechanical format （对比 Modern surface-mount converter candidates)
- Observed commercial sourcing （对比 No verified replacement candidates supplied)
设计说明
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.
合规信息
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.
