MCP3553-E/SN - 22-Bit 60 SPS ADC | Microchip Technology
MPN： MCP3553-E/SN ✓ 啟用中MCP3553-E/SN 概覽
An ADC is an integrated circuit that converts an analog voltage into a digital number for processing, measurement, logging, or control. Delta-sigma ADCs belong to the data-converter IC category and use oversampling, digital filtering, and noise shaping to convert the input voltage. This architecture is especially useful for relatively slow sensors because it can offer fine resolution while integrating noise over the conversion interval.
The MCP3553-E/SN provides 22-bit nominal resolution, one analog input, one sigma-delta conversion channel, and a conversion rate of 60 samples per second. Its low-power design is suitable for battery-operated instrumentation, portable measurement equipment, and industrial sensor interfaces. The manufacturer also identifies automatic internal offset and gain calibration as a feature of the MCP3553 family.
The converter is intended for applications in which signal bandwidth is limited and conversion speed is less important than resolution. Its 60 SPS rate suits many temperature, pressure, load-cell, and slowly changing process-control signals. The 8-pin SOIC package is a surface-mount package that supports conventional PCB assembly and compact board layouts.
Typical uses include industrial process measurement, portable environmental monitoring, laboratory data acquisition, and automotive sensing systems. For an automotive design, confirm the exact qualification, temperature, and production requirements against the manufacturer datasheet. For non-automotive designs, the suffix and qualification still identify the same electrical converter family, so the complete ordering code should be checked before qualification.
Layout should keep the analog input trace short and route it away from digital switching nodes. Follow the manufacturer’s input-capacitance and grounding recommendations, provide a clean reference connection, and evaluate input filtering against the 60 SPS conversion rate. Calibrated performance also depends on stable excitation and reference conditions.
This product page combines the manufacturer’s device identity, package information, conversion characteristics, qualification status, sourcing links, and application guidance. It also distinguishes the verified operating facts from engineering details that still require design-specific validation.
直接替換替代品，適用於 MCP3553-E/SN — 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。
此系列的變體
與下列產品可直接替換的同系列型號： MCP3553-E/SN （相同外形與佔位） — 差異在於 Automotive Qualification, Conversion Rate.
此產品無可直接替換的替代品。
申請替代品MCP3553-E/SN 最大額定值與電氣特性
| 解析度 | 22 bit |
| Conversion Rate | 60 samples/s |
| Input Channels | 1 channel |
| Architecture | Delta-sigma |
| Input Type | Single analog input |
| 供應電壓 | 2.7 V minimum |
| Automotive Qualification | AEC-Q100 qualified |
| 封裝 | 8-pin SOIC |
| Output Interface | Serial |
| Calibration | Automatic internal offset and gain calibration |
| 安裝類型 | Surface mount |
MCP3553-E/SN 8-pin soic 腳位配置指南
MCP3553-E/SN（8-pin soic 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： MCP3553-E/SN.
請參閱 資料表 以查看完整腳位配置。
典型應用
MCP3553-E/SN 適用於 6 應用s: Industrial Process Measurement, Portable Environmental Monitoring, Automotive Sensing, Precision Load-Cell Interface, Laboratory Data Acquisition, Audio and Vibration Level Monitoring.
Industrial Process Measurement
The MCP3553-E/SN fits slow industrial process signals that require higher nominal resolution than a conventional 16-bit converter. Its 22-bit resolution and 60 samples/s rate can support temperature, pressure, and flow-sensor interfaces when the signal bandwidth is limited. The device is placed between a conditioned analog input and a digital controller, while the reference and input filter are designed to preserve measurement stability. The main design trade-off is speed: 60 SPS supports slowly varying process variables but not high-frequency transients.
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Portable Environmental Monitoring
The MCP3553-E/SN is appropriate for portable environmental monitors measuring humidity, pressure, temperature, or gas-sensor outputs. Its single-channel 22-bit architecture suits one slowly changing sensor at a time, and its 60 SPS rate can provide periodic readings without demanding high-rate acquisition. A battery-powered design must include sensor excitation and interface energy in the operating budget. Use a stable reference and a filtered input because nominal resolution alone does not guarantee accurate environmental readings.
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Automotive Sensing
The MCP3553-E/SN is identified as an AEC-Q100 automotive ADC, making it relevant to slow automotive sensing channels. The 22-bit nominal resolution can support precision measurements, while the 60 SPS rate is appropriate for signals such as temperature, pressure, or slowly changing actuator feedback. Firmware should perform averaging or filtering only where timing permits, and the analog path must reject vehicle electrical transients. Confirm the exact automotive qualification and temperature requirements with Microchip before production release.
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Precision Load-Cell Interface
The 22-bit nominal resolution of the MCP3553-E/SN makes it a candidate for slow force and load-cell measurements where millivolt-level signals are amplified before conversion. Its 60 SPS conversion rate is generally more relevant to static load, weighing, and calibration than dynamic vibration analysis. The bridge amplifier, excitation source, and reference must share a stable ground strategy to prevent drift. Filtering and gain calibration should be evaluated together because both affect the usable resolution of the complete measurement chain.
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Laboratory Data Acquisition
The MCP3553-E/SN can serve as a low-rate precision data-acquisition channel in laboratory instruments measuring temperature, pressure, voltage, or resistance-derived signals. Its 60 SPS rate suits instrumented tests with slowly varying parameters and provides 22-bit nominal output resolution for fine-grained observations. The measurement system should use shielded input routing, a stable reference, and an acquisition cycle synchronized with the converter. For waveforms or vibration, a faster converter is necessary because the MCP3553-E/SN intentionally prioritizes resolution over throughput.
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Audio and Vibration Level Monitoring
The MCP3553-E/SN can capture slowly varying sound-pressure, vibration-level, or control-voltage envelopes where 60 samples/s is sufficient. The 22-bit nominal resolution can preserve fine amplitude detail after suitable conditioning, but it is not a replacement for a waveform ADC when the full audio spectrum must be captured. Limit the input bandwidth with an analog filter, then calculate level or RMS values digitally. The reference and anti-alias filter require careful design to avoid reducing the benefit of the converter’s nominal resolution.
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推薦產品摘要
工程參考資料，適用於 MCP3553-E/SN — 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 |
|---|---|
| Resolution | 22 bit |
| Conversion Rate | 60 samples/s |
| Input Channels | 1 channel |
| Architecture | Delta-sigma |
| Package | 8-pin SOIC |
| Brand | Microchip Technology |
| Automotive Qualification | AEC-Q100 qualified |
| Calibration | Automatic internal offset and gain calibration |
| Output Interface | Serial |
| Supply Voltage | 2.7 V minimum |
主要差異化特點
- Higher nominal resolution than common 16-bit converters (對比MCP37D31T-200I/TE)
- Conversion rate suited to slow precision measurements (對比MCP37D31T-200I/TE)
- Automotive qualification and integrated calibration (對比MCP3551-E/SN)
設計說明
Route the analog input as a short, quiet trace and keep it away from switching-regulator, digital-clock, and relay-node paths. Place the input filtering and reference components close to the MCP3553-E/SN, following the manufacturer’s recommended application layout. A single-channel ADC can still receive substantial interference if high-speed digital traces run beneath or parallel to the sensitive input. Use a continuous ground reference beneath the analog section when the board stackup permits.
Design the supply and reference network so both remain stable during conversion. The MCP3553-E/SN operates from a 2.7 V minimum supply according to the cross-reference data, but maximum supply voltage, current, and dropout behavior must be confirmed in the manufacturer datasheet before circuit design. Check the converter’s digital-interface levels against the host supply, and include decoupling and local return paths recommended for the package.
Choose the analog filter according to the 60 samples/s conversion rate rather than the converter’s nominal 22-bit resolution. An overly wide filter can admit out-of-band noise or alias activity into the measurement, while an unnecessarily narrow filter can add settling time after fast input changes. Evaluate the sensor’s bandwidth, acquisition cadence, and desired settling behavior together. The manufacturer’s input-filter and calibration guidance should govern the final component values.
Do not assume that the 22-bit nominal resolution is equivalent to 22 effective bits in a finished measurement. Reference noise, amplifier noise, excitation drift, input leakage, PCB contamination, and inadequate filtering can reduce usable accuracy. Allow the automatic internal offset and gain calibration to operate under the intended power-up and input conditions, and verify calibration results across temperature before approving production measurements.
合規資訊
The product listing identifies MCP3553-E/SN as automotive AEC-Q100. Other environmental and material-compliance declarations are not confirmed on the product resources linked from this page.
