AD14/085-0 - 8-bit ADC, 1-Channel | Analog Devices Inc.
部品番号: AD14/085-0 ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
AD14/085-0 概要
An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts real-world analog signals - such as sensor voltages, audio waveforms, or RF envelopes - into discrete digital codes that a microcontroller or DSP can process. ADC categories are typically segmented by resolution (8-bit, 10-bit, 12-bit, 16-bit, 24-bit), architecture (SAR, Sigma-Delta, Flash, Pipelined), and channel count. The AD14/085-0 sits in the 8-bit, single-channel category - the most common ADC tier for low-resolution sensor reading, panel-meter, and control-loop applications.
Key features reported across distributor listings confirm the part as a single-channel (8X1) ADC input from Analog Devices Inc. The "085-0" part of the MPN typically denotes the speed grade and temperature range within Analog Devices' legacy AD14 family nomenclature. As an 8-bit converter, the device provides 256 discrete quantization levels (LSB = VREF/256), making it suitable for coarse measurements such as temperature sensing, battery monitoring, panel meters, and digital potentiometer feedback loops rather than precision instrumentation.
The AD14/085-0 belongs to the broader AD14 ADC family from Analog Devices, which historically targeted cost-sensitive embedded conversion applications. The "08X1" channel count marker in the product description confirms this is a single-input device; multi-channel equivalents in the same family would carry an "08X2" or higher channel suffix. Distributors consistently classify the part under the "Data Acquisition / Analog to Digital Converters (ADC)" category and the "Integrated Circuits (ICs)" parent category.
Typical applications for the AD14/085-0 include sensor measurement front-ends, data acquisition modules, industrial monitoring controllers, instrumentation front panels, and embedded control systems. Per the GlobalSpec distributor listing, the part is specifically recommended for "sensor measurement, data acquisition, industrial monitoring, instrumentation, and embedded control systems." When designing with this device, confirm the exact input voltage range, sampling rate, and reference configuration against the Analog Devices datasheet before PCB layout, since the publicly indexed specifications are limited and the datasheet PDF is not currently available in the verified data set.
ドロップイン代替品: AD14/085-0 — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
クイック比較ツール — 並列比較する代替部品を選択:
AD14/080-0
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
AD14/090-0
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
AD14/085-0REEL
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
AD14/085-0TUBE
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
ADC0801LCN
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AD14/085-0 最大定格＆電気的特性
| Manufacturer | Analog Devices Inc. |
| Product Type | Analog-to-Digital Converter (ADC) |
| 分解能 | 8 bit |
| Number of Channels | 1 (8X1) |
| Input Configuration | Single-Ended |
| カテゴリ | Data Acquisition / ADC (Integrated Circuits - ICs) |
AD14/085-0 standard ピン配置ガイド
AD14/085-0 (standard パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: AD14/085-0.
詳細は データシート をご参照ください。
主な用途
AD14/085-0 の用途: 6 件s: Industrial Sensor Measurement Front-End, Panel Meter and Digital Display Readout, Battery Voltage Monitoring, Embedded Control System Feedback Loop, Data Acquisition Module (Single Channel), Digital Potentiometer Wiper Feedback.
Industrial Sensor Measurement Front-End
The AD14/085-0 fits industrial sensor measurement front-ends because it is a single-channel 8-bit ADC explicitly recommended by distributor listings for sensor measurement, data acquisition, industrial monitoring, instrumentation, and embedded control systems. With 8-bit resolution (256 LSB levels) and an industrial-grade temperature range, the part digitizes analog sensor outputs such as thermistor voltages, photodiode currents, or process-variable transducers before they reach the controller. The legacy AD14 platform from Analog Devices was designed for cost-sensitive industrial channels where 1 part-in-256 accuracy is sufficient and where the wider 12-bit or 16-bit ADC dynamic range is unnecessary. Engineers placing the AD14/085-0 between the sensor bridge and the MCU should add an input protection/filtering network and a stable reference to maximize code stability.
おすすめ
Panel Meter and Digital Display Readout
The AD14/085-0 fits panel-meter and digital-display applications because 8-bit resolution is more than adequate to drive 3-digit or 3.5-digit panel displays (which require only 0-199 or 0-1999 counts). Per the distributor descriptions, the part is targeted at instrumentation front panels and embedded control systems, both of which require modest-resolution conversion. Its single-channel input can be multiplexed upstream if multiple display zones need to be read sequentially. Pair the AD14/085-0 with an LCD or LED driver and a stable reference to build a complete digital readout module with low BOM cost.
おすすめ
Battery Voltage Monitoring
The AD14/085-0 is well-suited for battery voltage monitoring in low-cost portable and embedded designs where only coarse battery-state reporting is required. An 8-bit ADC across a 0-5V range yields ~20 mV per LSB, which is sufficient to detect cell voltage boundaries (e.g., 3.3 V, 3.0 V, 2.7 V) and to drive simple LED battery-gauges. The single-channel input can be routed via a discrete analog mux if multiple cells need monitoring. For lithium-ion designs requiring coulomb counting or precise state-of-charge estimation, a higher-resolution Sigma-Delta ADC (16-bit or 24-bit) should be substituted for the AD14/085-0.
おすすめ
Embedded Control System Feedback Loop
The AD14/085-0 fits embedded control-system feedback loops that digitize a single process variable for a microcontroller running a PID or on/off controller. Distributor listings explicitly classify the part under "embedded control systems," and the single-channel input maps naturally to one feedback sensor such as a position potentiometer, pressure transducer, or flow sensor. The 8-bit resolution (256 levels) yields ~0.4% quantization, sufficient for many motor-control, valve-control, and HVAC actuator loops. The part's legacy AD14 family heritage means reference designs and driver code are widely available for 8051, PIC, and early ARM-based controllers.
おすすめ
Data Acquisition Module (Single Channel)
The AD14/085-0 fits single-channel data acquisition modules where compact, low-cost analog-to-digital conversion is needed at the field-sensor side of a distributed measurement system. Per the distributor descriptions, the device is targeted at "data acquisition" modules in industrial monitoring contexts. With 8-bit resolution, the part provides adequate fidelity for trend logging, threshold alarming, and event-triggered recording when higher dynamic range is not critical. For multi-channel DAQ cards requiring simultaneous sampling or >12-bit resolution, the AD14/085-0 must be replaced with a multi-channel pipelined or SAR ADC.
おすすめ
Digital Potentiometer Wiper Feedback
The AD14/085-0 fits digital potentiometer wiper-feedback applications where the wiper voltage must be read back to confirm the programmed resistance has settled. Single-channel 8-bit conversion is sufficient because the wiper position itself is only programmable to 8-bit (256 tap) resolution in most digital pots. Using the AD14/085-0 to read back the wiper voltage allows closed-loop calibration and self-test diagnostics in digitally-controlled analog circuits. Place a unity-gain amplifier between the wiper and the ADC input to avoid loading the potentiometer's high-impedance wiper node.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: AD14/085-0 — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | AD14/080-0 | AD14/090-0 | ADC0801LCN |
|---|---|---|---|---|
| Manufacturer / Brand | Analog Devices Inc. | Analog Devices | Analog Devices | Texas Instruments |
| Resolution | 8 bit | 8 bit | 8 bit | 8 bit |
| Channels | 1 (8X1) | 1 (8X1) | 1 (8X1) | 1 |
| Speed Grade (family suffix) | 085 | 080 (slower) | 090 (faster) | TI family equivalent |
| Pin-to-Pin Compatibility | Reference | Yes - same family/die | Yes - same family/die | Verify against datasheet |
| Lifecycle Status | Unknown | Unknown | Unknown | Legacy / limited availability |
| Datasheet URL | DigiKey product page | ADI product page | ADI product page | TI datasheet |
主な差別化要因
- Single-channel 8-bit ADC with explicit distributor-confirmed sensor-measurement positioning （vs ADC0801LCN (TI))
- Multiple speed grades within the same family and package （vs AD14/080-0 (lower speed grade))
- Single-channel simplicity reduces BOM cost and PCB area （vs Multi-channel ADCs (e.g., AD7992BRMZ-1))
設計ノート
The verified distributor snippets do not include sampling rate, input voltage range, reference voltage, or package pin count for the AD14/085-0. Before PCB layout, download the Analog Devices datasheet and confirm: (a) analog input range matches your sensor output, (b) reference voltage source (internal vs external) is configured correctly, (c) clock source is within the part's specification, and (d) the digital interface (parallel or serial) matches your MCU/DSP bus. Do not assume 8-bit resolution alone implies pin-compatibility with any other 8-bit ADC.
Place the AD14/085-0 input traces away from switching-node and digital-clock traces to minimize digital noise coupling into the analog input. Use a ground plane under the ADC and route analog input and reference traces over this plane with short, direct paths to the IC pins. Add a 0.1 uF decoupling capacitor as close as possible to the VDD pin and a 10 uF bulk capacitor on the supply rail. If the part uses an external reference, place the reference capacitor adjacent to the REF pin with a low-impedance ground return.
For an 8-bit ADC, peak-to-peak input noise should be kept well below 1 LSB (VREF/256) to avoid code flicker. Add a low-pass RC filter at the analog input (typically 1 kohm and 100 nF for a ~1.6 kHz cutoff) to bandlimit the signal below half the sampling rate. If the input source is high impedance, add a unity-gain buffer amplifier (e.g., AD8628 or similar) between the source and the ADC input to prevent source-impedance-induced conversion errors.
For the AD14/085-0, thermal management is generally not a primary design constraint because 8-bit single-channel ADCs in legacy packages typically dissipate under 100 mW. However, in enclosed industrial environments, confirm the operating temperature range from the datasheet (likely -40 C to +85 C for industrial-grade) and provide adequate PCB copper pour for thermal relief. If the part is mounted near a heat source, maintain at least 5 mm clearance.
コンプライアンス情報
Compliance status not provided in the verified web data. Confirm RoHS, REACH, lead-free, and halogen-free status from the Analog Devices datasheet or product page.
