MCP3008T-I/SL - 10-Bit 8-Channel SAR ADC | Microchip Technology
料号： MCP3008T-I/SL ✓ 量产中MCP3008T-I/SL 概述
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.
直接替换替代料： MCP3008T-I/SL ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MCP3008T-I/SL （相同外形与封装尺寸） ——差异在于 Package, Architecture, Input Configuration, Mounting Type, Operating Temperature.
MCP3008-I/SL
✅ 直接替换联系询价
查看数据手册 →MCP3008T-I/SLVAO
✅ 直接替换📋 参考替代料（不在目录中）
MCP3008-I/P
✅ 直接替换联系询价
查看数据手册 →MCP3008T-I/SL 最大额定值与电气特性
| ADC Type | Successive Approximation Register (SAR) |
| 分辨率 | 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 |
| 工作电源电压 | 2.7 V |
| Serial Interface | SPI |
| 封装 | 16-pin SOIC, 0.150 inch, MS-012 |
| 引脚数量 | 16 pins |
| 工作温度范围 | -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 引脚配置指南
MCP3008T-I/SL（16-pin soic, 0.150 inch, ms-012 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： MCP3008T-I/SL.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MCP3008T-I/SL 适用于 6 应用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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
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.
推荐
推荐产品汇总
工程参考数据： MCP3008T-I/SL ——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 | 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 |
关键差异点
- Industrial-temperature ordering designation （对比 MCP3008-I/SL)
- Eight-channel multiplexing in a compact SOIC （对比 MCP3008-I/P)
- Flexible input configuration （对比 MCP3008-I/SL)
设计说明
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.
合规信息
The available product information identifies an industrial-screening-level device but does not explicitly establish the requested compliance fields.
