MCP3008T-I/SL - 10-Bit 8-Channel SAR ADC | Microchip Technology
部品番号: MCP3008T-I/SL ✓ 生産中MCP3008T-I/SL 概要
An ADC is an interface IC that converts continuously varying analog voltages into digital codes for processing by a microcontroller or other digital controller. The MCP3008 belongs to the SAR ADC family, where an internal sample-and-hold circuit measures an analog input and a successive-approximation conversion cycle produces a digital result. The ADC operates as a serial peripheral, allowing a host processor to configure the input channel and retrieve the result through SPI.
The MCP3008T-I/SL provides eight analog input channels and a 10-bit resolution. Its input architecture supports programmable single-ended and pseudo-differential pairs, while on-chip sample-and-hold circuitry helps isolate the conversion process from rapidly changing input conditions. The 200 ksps sample rate is suitable for general-purpose embedded control, sensor acquisition, and industrial monitoring systems that do not require simultaneous sampling.
The 16-pin SOIC package supports compact PCB layouts while providing separate SPI interface and supply connections. The MCP3008 is designed for low-power embedded-control applications, with the device family combining a small package, low power consumption, and flexible channel configuration. Its SPI interface allows the ADC to share a serial bus with other compatible peripherals, provided the host observes the required clocking and chip-select behavior.
Typical applications include industrial process monitoring, environmental sensing, temperature and pressure measurement, potentiometer position sensing, and general-purpose embedded data acquisition. The four-channel mode can support systems with fewer active inputs, while the eight-channel mode provides higher multiplexing flexibility when many analog sensors must share one ADC.
Designers should account for analog-input voltage limits, reference-voltage accuracy, source impedance, grounding, and SPI timing when laying out the circuit. Decoupling capacitors should be placed close to the supply and reference pins, and analog signal routing should remain separate from fast SPI clock traces to minimize conversion noise and timing errors.
This page combines manufacturer product information, distributor search results, package details, interface characteristics, application guidance, and replacement considerations to support faster component selection and PCB design. It also provides structured technical comparisons and practical notes for engineers evaluating the MCP3008T-I/SL in embedded ADC designs.
ドロップイン代替品: MCP3008T-I/SL — 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。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: MCP3008T-I/SL （同一形状・フットプリント） — 相違点: Package, Architecture, Input Configuration, Mounting Type, Operating Temperature.
MCP3008-I/SL
✅ ドロップイン価格はお問い合わせください
データシートを見る →MCP3008T-I/SLVAO
✅ ドロップイン📋 参考代替品（カタログ未掲載）
MCP3008-I/P
✅ ドロップイン価格はお問い合わせください
データシートを見る →MCP3008T-I/SL 最大定格＆電気的特性
| ADC Type | Successive Approximation Register (SAR) |
| 分解能 | 10 bit |
| Number of Analog Input Channels | 8 |
| Number of Conversion Modes | 4 |
| Input Configuration | Programmable single-ended or pseudo-differential pairs |
| Sample Rate | 200 ksps |
| 動作電源電圧 | 2.7 V |
| Serial Interface | SPI |
| パッケージ | 16-pin SOIC, 0.150 inch, MS-012 |
| ピン数 | 16 pins |
| 動作温度範囲 | -40 °C to +85 °C |
| Screening Level | Industrial |
| On-Chip Sample-and-Hold | Yes |
| Differential Nonlinearity | ±1 LSB maximum |
| Integral Nonlinearity | ±1 LSB maximum |
| Low-Power Embedded-Control Suitability | Designed for low-power embedded-control applications |
MCP3008T-I/SL 16-pin soic, 0.150 inch, ms-012 ピン配置ガイド
MCP3008T-I/SL (16-pin soic, 0.150 inch, ms-012 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: MCP3008T-I/SL.
詳細は データシート をご参照ください。
主な用途
MCP3008T-I/SL の用途: 6 件s: Industrial Process Monitoring, Environmental Sensor Acquisition, Potentiometer Position Measurement, Analog Control System Interface, Embedded Data Acquisition, Battery-Powered Sensor Node.
Industrial Process Monitoring
The MCP3008T-I/SL fits industrial process monitoring because it combines eight analog inputs, 10-bit resolution, and a 200 ksps conversion rate in a compact 16-pin SOIC package. Each input can be configured as a single-ended measurement or paired as a pseudo-differential channel, which helps reduce the number of separate converters when monitoring mixed sensor signals. The SPI interface allows a controller to select channels and retrieve results sequentially. Designers should preserve a quiet reference path, keep analog traces short, and ensure that sensor outputs remain within the input and supply limits specified by the manufacturer.
おすすめ
Environmental Sensor Acquisition
The MCP3008T-I/SL is suitable for environmental sensing systems that combine several slow-changing analog outputs with a digital microcontroller. Its eight-channel multiplexing allows a single ADC to service temperature, humidity, light, and other analog sensors, while the 10-bit code provides 1024 digital steps across the selected reference range. The 200 ksps capability offers timing headroom for periodic sampling rather than requiring simultaneous conversion. Use consistent sensor grounding and a stable reference voltage because reference error contributes directly to measurement uncertainty.
おすすめ
Potentiometer Position Measurement
The MCP3008T-I/SL can measure several potentiometer or resistive-sensor positions through its programmable single-ended inputs. Its 10-bit resolution and 200 ksps sample rate are appropriate for human-operated controls, actuator feedback, and many mechanical position interfaces. Connecting each wiper to a separate analog input allows one SPI ADC to replace multiple discrete converters. The signal should remain within the analog input range, and the input source impedance and sampling network should be checked against the manufacturer specifications before adding long cable runs.
おすすめ
Analog Control System Interface
The MCP3008T-I/SL provides a practical bridge between analog plant signals and embedded digital control logic. Its pseudo-differential input capability can support referenced measurements where a second related signal is used as an offset or paired comparison point. With eight inputs and four conversion modes, the converter can monitor multiple control variables while sharing a common SPI bus. Designers should define channel sequencing in firmware, allow adequate settling time for each source, and keep switching or high-current outputs physically separated from sensitive analog traces.
おすすめ
Embedded Data Acquisition
The MCP3008T-I/SL is well suited to compact embedded data-acquisition front ends that require several analog measurements and a serial interface. Its 10-bit SAR architecture, 200 ksps operation, and four multiplexing modes provide flexible channel organization in a 16-pin SOIC footprint. A microcontroller can issue the appropriate SPI command, wait for conversion completion, and read the 10-bit result. Keep the analog front end close to the converter and route SPI clock signals away from high-impedance sensor inputs to reduce conversion disturbance.
おすすめ
Battery-Powered Sensor Node
The MCP3008T-I/SL can support battery-powered sensor nodes when the overall sampling rate is modest and the device operates from a compatible low-voltage rail. Its low-power embedded-control positioning and 2.7 V supply operation align with compact instrumentation that measures one or more analog sensors and reports results through SPI. The 200 ksps maximum rate is well above typical environmental-sensor sampling needs. Power-management design should disable or control the sensor node between measurements, while PCB layout should provide local supply decoupling and a clean reference return.
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: MCP3008T-I/SL — 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 | MCP3008-I/SL | MCP3008T-I/SLVAO | MCP3008-I/P |
|---|---|---|---|---|
| Package | 16-pin SOIC, 0.150 inch, MS-012 | 16-pin SOIC | 16-pin SOIC | 16-pin SOIC |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit |
| Input Channels | 8 channels | 8 channels | 8 channels | 8 channels |
主な差別化要因
- Industrial-temperature ordering designation （vs MCP3008-I/SL)
- Eight-channel multiplexing in a compact SOIC （vs MCP3008-I/P)
- Flexible input configuration （vs MCP3008-I/SL)
設計ノート
Route analog inputs away from SPI clock, chip-select, and switching-supply traces. Place the input bypass and reference-decoupling capacitors close to their corresponding device pins, and use a compact return path from the analog ground pins to the supply reference. Long parallel runs beneath digital clock signals can increase conversion disturbance even when the nominal component values are correct.
Check every sensor output for compliance with the MCP3008T-I/SL input range before connecting it. Use the pseudo-differential mode only where the signal pairing and common-mode behavior satisfy the manufacturer requirements. For long sensor cables, provide suitable input conditioning and grounding rather than allowing high-impedance analog nets to extend directly from the converter pins.
Do not treat the 200 ksps figure as simultaneous-sampling performance; the MCP3008 multiplexes its channels through a SAR conversion process. Establish channel-selection timing and settling time in firmware, especially when switching between sensors with substantially different output impedances. Also verify the final ordering code and pin function when considering MCP3008-I/SL, MCP3008T-I/SLVAO, or MCP3008-I/P.
コンプライアンス情報
The available product information identifies an industrial-screening-level device but does not explicitly establish the requested compliance fields.
