MCP3912A1-E/MQ Microchip Integrated Circuit (Quad Flat No-Lead) In Stock
The MCP3912A1-E/MQ is a 4-channel analog front-end IC from Microchip Technology designed for single-phase and poly-phase energy metering at 3.3 V. It integrates four delta-sigma ADCs with SPI interface in a compact 28-pin QFN package. Available in tape-and-reel for automated assembly with worldwide distribution for smart metering and power monitoring applications.
- Manufacturer
- Microchip
- Package
- Quad Flat No-Lead
- Pin Count
- 28
- Lifecycle
- ACTIVE
- Datasheet
- MCP3912A1-E/MQ Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $3.0800(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of MCP3912A1-E/MQ?
- Four simultaneous delta-sigma ADC channels with up to 24-bit resolution enable accurate multi-channel current and voltage measurement for poly-phase energy metering
- SPI-compatible serial interface operating at 3.3 V allows direct connection to low-voltage microcontrollers without level-shifting circuitry
- Compact 28-pin QFN package with exposed pad minimizes PCB footprint and improves thermal performance in space-constrained smart meter modules
What is MCP3912A1-E/MQ used for?
The MCP3912A1-E/MQ is optimized for single-phase and 3-phase energy metering equipment, where its 4 simultaneous ADC channels capture current and voltage waveforms for accurate active, reactive, and apparent power calculations. It also fits industrial power quality analyzers and smart panel monitors that must measure multiple circuits concurrently at high resolution. IoT-connected power monitoring nodes benefit from its 3.3 V SPI interface that links directly to common wireless microcontrollers without additional signal-conditioning hardware.
What are the specifications of MCP3912A1-E/MQ?
| Manufacturer Package Code | QFN-28 |
| Factory Lead Time | 6Weeks |
| YTEOL | 14 |
| Analog IC - Other Type | ANALOG CIRCUIT |
| JESD-30 Code | S-PQCC-N28 |
| JESD-609 Code | e3 |
| Number of Channels | 4 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | LCC28,.2SQ,20 |
| Package Shape | SQUARE |
| Package Style | CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE |
| Supply Voltage-Max (Vsup) | 3.6V |
| Supply Voltage-Min (Vsup) | 2.7V |
| Supply Voltage-Nom (Vsup) | 3V |
| Surface Mount | YES |
| Temperature Grade | AUTOMOTIVE |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Package | Quad Flat No-Lead |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Thailand |
Where can I find the MCP3912A1-E/MQ datasheet?
MCP3912A1-E/MQ Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for MCP3912A1-E/MQ?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many ADC channels does MCP3912A1-E/MQ provide, and what resolution does each channel deliver for energy metering?
The MCP3912A1-E/MQ provides 4 simultaneous delta-sigma ADC channels, each capable of up to 24-bit resolution. This 24-bit depth gives a dynamic range exceeding 100 dB, which is sufficient to accurately measure both the standby current draw of a few milliamps and the full-load current of tens of amps in a residential or commercial energy meter without range switching.
What supply voltage does MCP3912A1-E/MQ require, and how does 3.3 V operation benefit modern smart meter designs?
The MCP3912A1-E/MQ operates from a 3.3 V supply, aligning with contemporary low-power microcontrollers and RF transceivers used in smart meters. Running at 3.3 V instead of 5 V reduces analog front-end power dissipation by approximately 30 %, and it eliminates the need for level-shifting buffers on the SPI bus, saving at least 2 external components per metering channel in a 3-phase design.
For a 3-phase energy meter design, how does MCP3912A1-E/MQ reduce BOM complexity compared to using discrete ADCs?
A 3-phase meter needs at least 6 simultaneous measurement channels (3 voltages + 3 currents). Using MCP3912A1-E/MQ, designers can cover 4 of those channels with a single 28-pin QFN IC, versus sourcing 6 individual 8-pin ADC packages. This consolidation cuts PCB land area by roughly 50 %, reduces SPI routing complexity, and lowers the total chip count from 6 ICs to 2, streamlining BOM management and qualification.
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