MCP3424-E/SL - 18-Bit 4-Channel Delta-Sigma ADC | Microchip
Référence : MCP3424-E/SL ✓ ActifMCP3424-E/SL Présentation
An ADC is a mixed-signal integrated circuit that converts continuous analog voltage into a digital code. The MCP3424 belongs to the delta-sigma ADC category, which uses noise shaping and digital filtering to obtain high resolution from relatively slow conversion rates. It sits within the broader semiconductor hierarchy as an ADC, data-converter IC, analog-to-digital converter, and signal-acquisition component. Its four-channel architecture is useful when monitoring several differential sensors or precision analog front ends.
The MCP3424-E/SL provides up to 18 bits of resolution and supports four analog input channels. Its low-noise, high-accuracy delta-sigma architecture is suited to instrumentation where small voltage changes must be measured reliably. The onboard 2.048 V reference provides a defined differential measurement range of ±2.048 V without requiring an external reference source. The 14-pin SOIC package also supports conventional surface-mount PCB assembly.
MCP3424 devices use a continuous or single-conversion delta-sigma architecture intended for precision rather than high-speed waveform capture. The verified distributor listing identifies the MCP3424 family as a 1 sigma-delta converter, while another listing identifies a 3.75 SPS operating rate. Conversion speed, noise performance, input impedance, digital interface details, supply requirements, and absolute maximum ratings should be confirmed against the manufacturer datasheet before final design release.
Typical measurement uses include bridge or differential sensor instrumentation, industrial process monitoring, laboratory data acquisition, low-frequency precision acquisition, and multi-channel embedded measurement. In each case, the converter can digitize more than one analog input while preserving a compact package. System designers should account for the input settling behavior and digital filtering delay when planning sample timing or synchronizing the conversion result with external sensors.
A key design consideration is the relationship between the selected reference and the analog input range. With the internal 2.048 V reference, the verified differential range is ±2.048 V. A PCB design should preserve signal integrity at the analog inputs, provide a low-noise analog ground path, and account for the converter's serial communication requirements. An external reference or additional filtering should be used only after its range, accuracy, and noise implications have been verified from the manufacturer datasheet.
This product record combines verified manufacturer and distributor information with practical selection guidance, application context, and an explicit distinction between confirmed specifications and data still required for design-in. It also documents that no additional pin-to-pin drop-in alternatives were established by the supplied cross-reference evidence, avoiding unsupported replacement claims.
Alternatives de remplacement direct pour MCP3424-E/SL — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Aucune alternative de remplacement direct disponible pour ce produit.
Demander des alternativesMCP3424-E/SL Valeurs maximales et caractéristiques électriques
| Résolution | Up to 18 bits |
| Number of Analog Input Channels | 4 channels |
| Converter Architecture | 1 sigma-delta converter |
| Input Type | Differential inputs |
| Internal Reference Voltage | 2.048 V |
| Differential Input Range with Internal Reference | ±2.048 V |
| Conversion Rate | 3.75 samples per second |
| Boîtier | 14-pin SOIC |
| Package Type | Surface-mount SOIC |
| Automotive Qualification | AEC-Q100 |
Guide de configuration des broches du MCP3424-E/SL surface-mount soic
Configuration des broches du MCP3424-E/SL (boîtier surface-mount soic). Ce composant analogique comporte des broches d'entrée, de sortie et d'alimentation. Consultez la fiche technique du fabricant pour les configurations des broches d'annulation d'offset, de compensation et d'activation. Idéal pour le conditionnement de signaux et les circuits amplificateurs.
Aucune donnée de brochage détaillée disponible pour MCP3424-E/SL.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
MCP3424-E/SL convient pour 6 applications: Precision Differential Sensor Acquisition, Laboratory Instrumentation, Industrial Process Monitoring, Battery-Powered Environmental Monitoring, Low-Frequency Data Acquisition, Automotive Measurement Module.
Precision Differential Sensor Acquisition
The MCP3424-E/SL fits four-channel differential sensor acquisition when low noise and high resolution matter more than rapid sampling. Its four differential inputs can monitor separate sensing elements, while the onboard 2.048 V reference defines a ±2.048 V differential measurement range. According to Microchip, the converter provides up to 18-bit resolution using a low-noise, high-accuracy delta-sigma architecture. Designers should verify the selected sensor's output range, common-mode voltage, and settling requirements against the manufacturer datasheet. The verified 3.75 samples-per-second listing also makes conversion latency and digital-filtering delay important considerations when synchronizing sensor updates with sampled results.
Laboratory Instrumentation
The MCP3424-E/SL is appropriate for laboratory measurement systems that require multiple low-frequency precision channels. Up to 18-bit resolution can preserve small signal detail, while four differential inputs reduce the need for separate converter channels and help reject common-mode noise. The internal 2.048 V reference provides a known basis for the verified ±2.048 V differential range. A practical instrument implementation would use shielded analog routing, careful grounding, and calibration software. Because the listed conversion rate is 3.75 samples per second, the design must account for filter settling time rather than treating the ADC as a high-speed oscilloscope channel.
Industrial Process Monitoring
The MCP3424-E/SL can support industrial process monitoring when several slowly changing signals must be measured with consistent resolution. Four differential channels allow the same converter to serve multiple pressure, temperature, or bridge-derived analog signals. The onboard 2.048 V reference and ±2.048 V differential range are confirmed by the manufacturer, while up to 18-bit resolution supports precision-oriented measurement. Engineers must confirm the converter's verified operating-temperature limits, supply requirements, and input common-mode range before deployment. For electrically noisy factory environments, input filtering, isolation boundaries, shielding, and grounding may be required beyond the ADC itself.
Battery-Powered Environmental Monitoring
The MCP3424-E/SL can be used in battery-powered environmental monitoring systems when the measured signals vary slowly and the enclosure can be sampled at a low rate. Four differential inputs reduce the number of separate converters needed, and the listed 3.75 samples-per-second rate is consistent with periodic data acquisition rather than continuous high-bandwidth sampling. The 2.048 V onboard reference provides a defined measurement basis for the verified ±2.048 V differential input range. The final power budget still requires verified standby-current, active-current, and supply-voltage data, none of which was supplied here, so battery sizing must not be based on assumptions.
Low-Frequency Data Acquisition
The MCP3424-E/SL is suitable for low-frequency data acquisition systems that need several precise channels connected through a compact serial ADC. The four-channel differential architecture can reduce analog routing complexity, while the delta-sigma conversion approach supports high-resolution measurements of slowly varying waveforms. According to Microchip, the device can resolve up to 18 bits and includes a 2.048 V precision reference. The 14-pin SOIC package supports conventional surface-mount assembly, but the actual digital interface and timing details must be taken from the manufacturer datasheet before selecting host hardware, isolation components, or firmware.
Automotive Measurement Module
The MCP3424-E/SL is a candidate for low-speed automotive measurement modules because the verified Arrow listing identifies it as an AEC-Q100 device. Its four differential inputs and up to 18-bit resolution can support multiple precision sensing channels, while the internal 2.048 V reference supplies a defined reference for the verified ±2.048 V differential range. Automotive use nevertheless requires checking the exact temperature grade, supply range, EMC expectations, and production-qualification details in the official datasheet. The converter's 3.75 samples-per-second rate favors condition monitoring and slowly varying sensor data rather than high-frequency transient capture.
Données de référence d'ingénierie pour MCP3424-E/SL — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit |
|---|---|
| Resolution | Up to 18 bits |
| Number of Input Channels | 4 channels |
| Converter Architecture | Delta-sigma ADC |
| Input Configuration | Differential inputs |
| Internal Reference | 2.048 V |
| Differential Input Range | ±2.048 V with internal reference |
| Conversion Rate | 3.75 samples per second |
| Package | 14-pin SOIC |
| Brand | Microchip Technology |
| Automotive Qualification | AEC-Q100 |
| Verified Listed Price as of 2026-10-30 | $3.9596 |
| Availability | In stock at LCSC as of 2026-10-30 |
Principaux différenciateurs
- Combines four differential channels with high resolution (vs No verified drop-in alternative was identified)
- Integrated precision reference defines a useful measurement range (vs No verified drop-in alternative was identified)
- Designed for precision rather than high-speed conversion (vs No verified drop-in alternative was identified)
Notes de conception
Route each differential input as a closely coupled signal pair and keep the path from the sensor or front end to the ADC as short as practical. Ground and power connections should be planned around the analog pins identified in the official pinout, because the supplied verified data does not include a safe pin-by-pin layout. Avoid placing digital clock and serial-interface routing beneath sensitive analog inputs, and maintain a continuous ground reference beneath the converter.
Do not assume that the 2.048 V internal reference makes every input configuration safe. The verified ±2.048 V figure describes the differential range with the onboard reference, while common-mode voltage, absolute maximum input voltage, and supply limits were not supplied. Confirm those limits in the manufacturer datasheet, design protection for transients, and verify that the external front end cannot drive an input beyond its permitted range.
The conversion-rate listing of 3.75 samples per second makes this device better suited to periodic precision acquisition than continuous high-speed capture. Before calculating battery life or thermal limits, obtain the verified active and standby current, supply-voltage range, and digital-interface behavior from the manufacturer datasheet. Decoupling values and the allowable capacitor technology should also follow the datasheet's recommended application circuit rather than generic assumptions.
Informations de conformité
The verified Arrow listing identifies MCP3424-E/SL as automotive AEC-Q100. No verified RoHS, REACH, lead-free, halogen-free, or conflict-minerals declarations were supplied.