MCP3565T-E/QM - 24-Bit Delta-Sigma ADC | Microchip
MPN： MCP3565T-E/QM ✓ 啟用中MCP3565T-E/QM 概覽
A delta-sigma ADC is an analog-to-digital converter category that uses oversampling, digital filtering, and noise shaping to convert an analog input into a high-resolution digital result. Its role in the broader hierarchy is ADC > data converter > signal-chain IC > semiconductor. This architecture is particularly useful when the target signal bandwidth is much lower than the converter's internal conversion rate, as is common in temperature, pressure, load-cell, industrial-sensor, and precision measurement systems.
The MCP3565T-E/QM provides a 24-bit resolution, a single analog conversion channel, and a 3 V operating supply designation. Its single-channel architecture simplifies analog-front-end routing and software configuration when one transducer or sensor must be measured accurately. The 12-pin UQFN package also supports compact layouts, although the exposed-pad and pin-layout requirements in the manufacturer datasheet must be followed during layout and reflow.
Delta-sigma conversion provides several practical advantages for low-bandwidth instrumentation. Noise shaping moves quantization noise away from the signal band of interest, while the digital decimation filter rejects high-frequency components. The practical result is high usable resolution without requiring a high-speed successive-approximation ADC architecture. The final conversion rate, input-referred noise, line frequency rejection, and filter configuration should be confirmed from the datasheet before fixing the system gain and update interval.
Typical applications include precision temperature sensing, bridge-based pressure and force measurement, industrial process monitoring, portable instrumentation, and low-rate energy or condition monitoring. In each case, the analog signal path must stay short, the reference voltage must remain stable, and the digital interface must be matched to the host processor. A delta-sigma ADC also benefits from averaging and digital correction when absolute measurement accuracy, rather than resolution alone, is the primary objective.
When laying out this converter, place input and reference components close to their associated pins, provide a clean analog ground connection, and keep switching or digital return currents away from the input traces. Verify the required decoupling values and exposed-pad connection directly from the Microchip manufacturer datasheet before fabrication.
This page combines the converter's confirmed architecture and package characteristics with application-oriented design guidance, specification markers, and procurement context that help engineers evaluate the MCP3565T-E/QM before committing it to a design.
直接替換替代品，適用於 MCP3565T-E/QM — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此產品無可直接替換的替代品。
申請替代品MCP3565T-E/QM 最大額定值與電氣特性
| ADC Type | Delta-sigma ADC |
| 解析度 | 24 bit |
| Number of Channels | 1 channel |
| Supply Voltage Designation | 3 V |
| 封裝 | 12-pin UQFN |
| 安裝類型 | Surface mount |
| Input Channel Count | 1 single-ended or differential input configuration |
MCP3565T-E/QM 12-pin uqfn 腳位配置指南
MCP3565T-E/QM（12-pin uqfn 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： MCP3565T-E/QM.
請參閱 資料表 以查看完整腳位配置。
典型應用
MCP3565T-E/QM 適用於 6 應用s: Precision Temperature Sensing, Industrial Pressure and Bridge Measurement, Precision Process Monitoring, Battery-Powered Portable Instruments, Load-Cell and Force Sensing, Low-Rate Energy and Condition Monitoring.
Precision Temperature Sensing
The MCP3565T-E/QM fits RTD, thermistor, or silicon-sensor front ends that require more resolution than a conventional 12-bit ADC while measuring a slowly changing signal. Its 24-bit delta-sigma architecture supports digital filtering and noise shaping, which helps separate low-frequency sensor information from broadband noise. Place the conditioning network close to the analog input, use a stable reference, and select the digital filter mode so averaging and settling time match the thermal response. The single-channel architecture simplifies channel selection and calibration.
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Industrial Pressure and Bridge Measurement
The MCP3565T-E/QM is appropriate for resistive pressure bridges, load cells, and strain-gauge systems whose output is a small differential signal riding on a larger common-mode voltage. The converter's 24-bit nominal resolution supports high-resolution digitization after low-noise differential amplification. Keep the bridge excitation and instrumentation amplifier paths isolated from digital return currents, and confirm the input common-mode range and reference requirements in the manufacturer datasheet before selecting amplifier and protection components.
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Precision Process Monitoring
The MCP3565T-E/QM can digitize slow industrial process variables such as temperature, level, flow, and differential pressure with a dedicated 24-bit conversion channel. Delta-sigma filtering is useful when the measured signal changes more slowly than the converter's internal sampling rate, allowing the system to trade conversion speed for usable resolution. Design the analog input stage for galvanic isolation, surge protection, and low thermal drift where required, and avoid placing the converter close to high-current switching paths.
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Battery-Powered Portable Instruments
The MCP3565T-E/QM suits handheld meters and portable data loggers that measure low-rate analog quantities while operating from limited energy budgets. Its 24-bit single-channel conversion resolves small sensor outputs without requiring multiple multiplexed channels, and the compact 12-pin UQFN package preserves PCB area for display, radio, and protection circuitry. The system designer must still verify quiescent current, output interface, and digital filter settling behavior in the manufacturer datasheet because those details determine the achievable battery life.
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Load-Cell and Force Sensing
The MCP3565T-E/QM is suitable for force measurement platforms that use a bridge transducer and require traceable resolution across a narrow mechanical range. A high-resolution delta-sigma conversion stage can capture small differential changes without using a wideband ADC, but mechanical drift and temperature drift still dominate the final accuracy budget. Use a low-noise reference, matched input filtering, and offset and gain calibration in firmware to convert the digital codes into engineering units.
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Low-Rate Energy and Condition Monitoring
The MCP3565T-E/QM can serve as the analog measurement element in energy-monitoring or equipment-condition systems that sample small sensor voltages at relatively low rates. Its 24-bit resolution improves the visibility of small changes, while delta-sigma noise shaping and digital filtering reduce the need for aggressive analog filtering. Place the converter in a protected analog section, isolate it from relay and switching-node currents, and schedule conversions to avoid correlating every sample with switching noise.
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推薦產品摘要
工程參考資料，適用於 MCP3565T-E/QM — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 |
|---|---|
| Package | 12-pin UQFN |
| Brand | Microchip Technology |
| Converter Type | Delta-sigma ADC |
| Resolution | 24 bit |
| Number of Channels | 1 channel |
| Supply Voltage Designation | 3 V |
設計說明
Use the pin-description and layout sections of the Microchip manufacturer datasheet when assigning the 12-pin UQFN footprint. Place the reference and input-network components adjacent to their corresponding pins, keep the analog input trace short, and route the exposed-pad connection exactly as specified. Confirm land-pattern dimensions and paste recommendations against the current package drawing before releasing Gerber files.
Keep switching-node and digital return currents physically separated from the analog input and reference paths. Star-route analog returns toward the converter's ground connection where the reference design allows, and keep the input filter close to the device so the added filter capacitance does not interfere with the converter's acquisition behavior. Confirm the allowable input source impedance and settling requirements in the manufacturer datasheet.
Do not treat 24-bit resolution as 24 bits of absolute accuracy. Reference-voltage error, amplifier offset and drift, noise, calibration coefficients, and filter settling all contribute to the end-to-end error budget. Apply offset and gain calibration in firmware, use a stable low-noise reference, and allow the converter to complete its configured settling period before treating the result as valid.
合規資訊
The available manufacturer and distributor product information confirms the part number and device category but does not state the detailed RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Confirm these declarations on the manufacturer product page or product-change-notification documentation before release.
