WM8144CPT - 10-Bit CCD Imaging Data Converter | Texas Instruments
部品番号: WM8144CPT ✗ 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 |
WM8144CPT 概要
A CCD image sensor is a semiconductor that converts accumulated light into analog charge and transfers that charge through output circuitry in a sequence. Because the resulting signal is weak, noisy, and often offset or gain mismatched, imaging systems require conditioning before digital conversion. An integrated data-acquisition IC reduces discrete circuitry and helps standardize the interface between the sensor output amplifier, analog-to-digital converter, and image-processing electronics.
The WM8144 family provides the core functions needed for imaging: CCD-compatible analog signal conditioning, a 10-bit ADC, and optional pixel-by-pixel compensation. Compensation circuitry is used to correct sensor-column offsets, gain variations, dark current, or fixed-pattern effects before pixels are interpreted. The practical benefit is a more compact analog section, but final image quality still depends on sensor characteristics, clocking, grounding, reference quality, and system calibration.
The exact suffix CPT denotes the supplied package/orderable variant, but the verified source set does not expose the full pin list, electrical ratings, ADC conversion rate, voltage limits, clock requirements, or operating-temperature limits. Consequently, those values are not inferred here. The 27-page document count reported by a search result is a page count, not proof of the target package pin count, so it is not used to construct a pinout or package drawing.
Typical imaging uses include scientific CMOS-compatible signal chains, industrial line-scan cameras, low-light surveillance modules, barcode and document scanners, machine-vision cameras, and embedded optical measurement systems. In each case, the sensor amplifier output must meet the WM8144 input range and sampling requirements. Because those limits are unavailable in the supplied data, a new design should treat them as release-gating requirements and verify them in the original datasheet.
Layout is especially important because CCD outputs are high impedance and susceptible to coupling, ground noise, and reference disturbance. Place the device close to the sensor output, keep the analog path compact, isolate clocks from sensitive traces, and return unused inputs according to the verified pin documentation. Use a stable, low-noise reference and suitable bypass capacitors once their required values are confirmed from the manufacturer guidance.
This page distinguishes documented WM8144-family functions from unverified target-variant specifications, lists the supplied sourcing records, and avoids fabricating pin assignments, ratings, lifecycle claims, stock levels, or prices. Engineers should download and review the original WM8144 documentation before layout release, schematic sign-off, or production procurement.
ドロップイン代替品: WM8144CPT — 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:
この製品に利用可能なドロップイン代替品はありません。
代替品をリクエストWM8144CPT 最大定格＆電気的特性
| Product Type | Integrated data-acquisition system |
| ADC Resolution | 10 bit |
| Primary Function | CCD-compatible analogue signal conditioning and analog-to-digital conversion |
| Image Compensation | Optional pixel-by-pixel image compensation |
| Manufacturer | Texas Instruments |
| Package Suffix | CPT |
| RoHS ステータス | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | unknown |
WM8144CPT cpt ピン配置ガイド
WM8144CPT (cpt 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: WM8144CPT.
詳細は データシート をご参照ください。
主な用途
WM8144CPT の用途: 6 件s: Industrial Line-Scan Imaging, Machine-Vision Camera Module, Document and Barcode Scanner, Low-Light Surveillance Camera, Scientific Optical Measurement, Embedded Optical Inspection System.
Industrial Line-Scan Imaging
The WM8144 fits a line-scan camera when the selected CCD produces an analog output that is compatible with its documented signal-conditioning input and timing. Its integrated 10-bit conversion path can replace separate conditioning, compensation, and conversion stages, reducing analog-chain complexity. The designer must verify pixel-clock rate, reset timing, input range, reference voltage, and output interface against the original datasheet before assigning the device. PCB placement should keep the high-impedance sensor path close to the converter and place clocks away from it. Image quality will depend as much on sensor calibration and stable references as on the nominal 10-bit resolution.
おすすめ
Machine-Vision Camera Module
A compact machine-vision module can benefit when its image sensor requires conditioning and 10-bit digitization in the same signal-chain stage. The WM8144’s optional pixel-by-pixel compensation may help implement sensor-column offset or gain correction, although the exact correction functions must be confirmed from the manufacturer documentation. High-value sensor traces should be short and properly terminated or guarded according to the supported interface. External clocking, digital outputs, and image-processing logic must be checked for voltage and timing compatibility. Because no verified pinout or electrical limits were supplied, schematic release requires a documented comparison with the selected CCD.
おすすめ
Document and Barcode Scanner
The WM8144 is conceptually suitable for line-scan document or barcode imaging when the illuminator and sensor produce the expected CCD waveform and the controller can support its documented clock and compensation scheme. Integrating analogue conditioning, a 10-bit ADC, and optional correction can support a compact analog section in a scanner head. However, scanner performance depends on illumination uniformity, sensor velocity, pixel pitch, exposure, calibration, and data throughput. Verify the ADC’s supported conversion rate and digital interface rather than assuming suitability from the 10-bit rating. Decoupling and reference layout should follow the original guidance once component values and pin names are confirmed.
おすすめ
Low-Light Surveillance Camera
A CCD-based surveillance camera can use the integrated WM8144 family concept to condition weak sensor signals and convert them at 10-bit resolution before image processing. The component may reduce analog board area when its native correction and timing functions match the camera’s CCD output. This does not guarantee low-light image quality, which is governed mainly by sensor quantum efficiency, optical design, integration time, analog noise, and calibration. The design team must verify the converter’s noise, input range, reference quality, conversion rate, and temperature limits before selecting it. Analog ground and power arrangements should prevent clock and digital-return noise from entering the CCD signal path.
おすすめ
Scientific Optical Measurement
The WM8144 may serve in a scientific optical measurement chain where a CCD detector produces a repeatable analog waveform and pixel-by-pixel correction is useful. Its 10-bit converter provides 1,024 digital codes across the supported input span, but actual sensitivity in volts per code requires the verified reference and input range. Calibration tables, dark-current subtraction, gain correction, and optical references remain external system functions unless specifically documented as internal features. The analog frontend should use a low-noise reference and controlled layout because sensor and converter errors can dominate a precision measurement. Confirm clock jitter, sampling cadence, and digital timing before committing to a new instrument design.
おすすめ
Embedded Optical Inspection System
An embedded inspection system can benefit from the WM8144’s combination of CCD signal conditioning, 10-bit digitization, and optional pixel compensation when board space or discrete-component count matters. The design must still establish a deterministic timing chain from CCD transfer clocks to conversion and digital readout. External memory or a processor must match the verified output width, coding, voltage levels, and timing. Place input and reference routing away from high-energy clock traces, and use ground-plane continuity to control return currents. Since the supplied records omit key electrical and package details, this application is a conditional use case rather than a claim that every CCD interface is supported.
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: WM8144CPT — 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 |
|---|---|
| Brand | Texas Instruments |
| ADC Resolution | 10 bit |
| Signal Conditioning | Integrated analogue signal conditioning for CCD sensors |
| Image Compensation | Optional pixel-by-pixel image compensation |
| Lifecycle Status | unknown |
主な差別化要因
- CCD-oriented integration （vs Generic standalone ADC)
- Pixel-domain correction support （vs Discrete correction circuit)
- Imaging-focused rather than generic signal conversion （vs General-purpose audio ADC)
設計ノート
Place the WM8144 close to the CCD output amplifier and keep the analog signal trace short, continuous, and surrounded by a stable ground reference. High-impedance CCD outputs can couple noise even when nominal voltage levels appear correct. Route pixel, master, and reset clocks away from the analog input and reference nodes, then add via fences where the verified layout guidance supports them. The supplied data does not provide pin names or package geometry, so this layout direction must be finalized against the original datasheet land pattern.
Treat the CCD output path as a high-speed analog signal even though the converter has a nominal 10-bit resolution. Establish source impedance, return path, clock edge rate, ADC acquisition interval, and allowed settling time before choosing trace width or termination. Avoid assuming that matching only the clock frequency guarantees an accurate conversion. Verify output coding, data capture timing, and clock-to-converter phasing with the actual sensor timing and the original manufacturer interface diagrams.
Separate analog and digital supply returns until the manufacturer guidance confirms otherwise, and use the verified reference-voltage limits to define bypass-component selection. Supply noise and reference instability can create fixed-pattern errors that are difficult to distinguish from sensor defects. Do not invent capacitor values from this search summary: confirm them with the datasheet’s recommended application circuit and power-supply-impedance requirements. Prototype measurements should include analog-ground voltage under clocked imaging conditions.
Do not treat the reported 27-page document length as a package pin count or interpret the DigiKey Marketplace category as proof that the part performs audio conversion. The supplied family description identifies an imaging data-acquisition IC, while marketplace metadata may contain broader categorization. Reconcile the exact WM8144CPT ordering code, pinout, electrical limits, and lifecycle status against the original manufacturer documentation before schematic sign-off, PCB release, or production sourcing.
コンプライアンス情報
The supplied web results contain no explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals declarations. Compliance must be confirmed from the original manufacturer product documentation or a current supplier declaration.
