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Microchip Technology MCP33111-10-E/MN
- Part No.:
- MCP33111-10-E/MN
- Manufacturer:
- Microchip Technology
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MCP33111-10-E/MN.pdf
- Description:
- IC ADC 12BIT SAR 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,010
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Product details
Overview
MCP33111-10-E/MN from Microchip Technology is a 12-bit, 1 Msps single-ended SAR analog-to-digital converter with no missing codes, ultra-low standby current (0.8 µA), and AEC-Q100 Grade 1 qualification (-40°C to +125°C). It operates from a 1.8V analog supply (AVDD), supports 1.7–5.5V digital I/O (DVIO), and accepts 2.5–5.1V external reference (VREF) for full-scale input range of 0V to VREF - ideal for high-precision battery-powered data acquisition in automotive BMS and motor control.
For engineers reviewing the MCP33111-10-E/MN datasheet, MCP33111-10-E/MN pinout, MCP33111-10-E/MN application, or MCP33111-10-E/MN equivalent, this page delivers verified electrical specs, SPI timing constraints (up to 100 MHz SCLK), self-calibration behavior, package mapping (TDFN-10/MSOP-10), and real-world design implications for low-latency, high-SFDR (95.9 dBc) signal chain integration.
Technical Context
The MCP33111-10-E/MN uses a successive approximation register (SAR) architecture with internal clock generation independent of SPI SCLK, enabling deterministic conversion time (710 ns typical) and no output latency. Its pseudo-differential input stage supports true single-ended operation with 0V to VREF full-scale range and 25 MHz -3dB input bandwidth.
Self-calibration corrects offset, gain, and linearity errors at power-up and on-demand via SPI command (1024 SCLK cycles), maintaining ±0.12 LSB INL and ±0.06 LSB DNL across temperature. The device enters ultra-low-power Standby mode (<1 µA) between conversions, triggered by CNVST rising edge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes - guarantees monotonicity and simplifies firmware linearization. |
| Sample Rate | 1 Msps throughput - supports real-time sampling of signals up to ~400 kHz (Nyquist-limited). |
| SNR / SFDR | 73.8 dBFS / 95.9 dBc at fIN = 10 kHz, VREF = 5.1V - enables 11.3 ENOB for precision sensor digitization. |
| INL / DNL | ±0.12 LSB / ±0.06 LSB typical - ensures <0.03% full-scale error without post-calibration in closed-loop systems. |
| Supply Voltages | AVDD = 1.8V, DVIO = 1.7–5.5V, VREF = 2.5–5.1V - allows direct interfacing with 1.8V/3.3V/5V MCUs without level shifters. |
| Power Consumption | 1.6 mA during conversion, 0.8 µA in Standby - extends battery life in portable medical or test equipment. |
| SPI Interface | 3-wire, SCLK up to 100 MHz, CNVST-as-CS - reduces PCB routing complexity and supports high-speed host polling. |
Pinout & Package
Available in Pb-free TDFN-10 (3 mm × 3 mm) and MSOP-10 packages. Both share identical pinout and thermal performance (θJA = 68°C/W for TDFN, 202°C/W for MSOP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: AIN+ | Analog input positive | Single-ended analog input node; referenced to GND, accepts 0V to VREF. |
| 2: AVDD | Analog supply | 1.8V regulated supply for SAR core and reference buffer; requires 1 µF decoupling. |
| 3: AIN− | Analog input negative | Internally connected to GND in single-ended mode; must be tied to GND externally. |
| 4: SDI | Serial data input | Accepts recalibrate command and configuration bits; Schmitt-triggered for noise immunity. |
| 5: SCLK | Serial clock input | Drives SPI interface up to 100 MHz; timing-critical for data capture and command execution. |
| 6: GND | Analog/digital ground | Common reference for AVDD, DVIO, and analog inputs; star grounding recommended. |
| 7: SDO | Serial data output | Tri-state output presenting 12-bit MSB-first result after CNVST falling edge. |
| 8: DVIO | Digital I/O supply | Defines logic thresholds (VIH/VIL); supports mixed-voltage host MCU interfaces. |
| 9: VREF | External reference input | High-impedance reference source (2.5–5.1V); requires 10 µF tantalum decoupling. |
| 10: CNVST | Convert/start input | Edge-triggered conversion initiator and chip select; rising edge starts acquisition. |
Key Features
| Feature | Design Value |
|---|---|
| No latency output | Conversion result available immediately after CNVST falling edge - eliminates buffering delays in real-time control loops. |
| On-demand self-calibration | Recalibration command restores ±0.12 LSB INL after environmental shifts (e.g., VREF settling drift), avoiding system-level recalibration. |
| AEC-Q100 Grade 1 | Qualified for automotive under-hood applications (-40°C to +125°C), with guaranteed performance over full temperature range. |
| Wide DVIO range (1.7–5.5V) | Direct interface with PIC32, ARM Cortex-M, and legacy 5V microcontrollers - eliminates level-shifter components and BOM cost. |
| Ultra-low standby current | 0.8 µA standby draw enables >10-year battery life in always-on monitoring nodes (e.g., EV battery cell voltage sensing). |
Applications
| Electric Vehicle BMS | Industrial Motor Control |
|---|---|
|
Use Scenario: Cell voltage monitoring in 400V traction battery packs with thermal management requirements. IC Role / Device Role / Timing Role: High-accuracy, low-drift ADC capturing 12-bit cell voltages at 1 Msps for state-of-charge estimation. Use Value: ±0.12 LSB INL and AEC-Q100 qualification ensure reliable long-term accuracy under thermal cycling and vibration. |
Use Scenario: Real-time phase current sampling in servo drives for field-oriented control (FOC). IC Role / Device Role / Timing Role: Single-ended current sense ADC synchronized to PWM carrier with sub-µs acquisition time. Use Value: 73.8 dB SNR and 25 MHz input bandwidth preserve current waveform fidelity for precise torque regulation. |
| Portable Medical Instrumentation | High-Speed Test Equipment |
|
Use Scenario: Battery-powered ECG front-end digitizing low-amplitude biopotentials with minimal power budget. IC Role / Device Role / Timing Role: Low-noise, low-power ADC operating from coin-cell supply with 0.8 µA standby current. Use Value: 1.6 mA active current and no missing codes enable clinical-grade signal integrity without complex power management. |
Use Scenario: Modular data acquisition module requiring fast, repeatable measurements across multiple channels. IC Role / Device Role / Timing Role: Precision SAR ADC delivering 12-bit results at 1 Msps with deterministic timing for trigger synchronization. Use Value: 95.9 dB SFDR and SPI-compatible interface simplify FPGA-based data capture and reduce system jitter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7953IRHBT | 12-bit, 1 Msps, SPI interface, but requires 2.7–5.25V AVDD and lacks on-demand recalibration. | Higher supply voltage limits use in 1.8V systems; no built-in calibration increases system calibration overhead. | Select when higher AVDD tolerance is needed and recalibration is handled externally. |
| AD7476ARTZ-REEL7 | 12-bit, 1 Msps, but only 73 dB SNR (vs. 73.8 dB), no AEC-Q100 qualification, and 2.35–5.25V DVIO range. | Not automotive-qualified; narrower DVIO range restricts interfacing with 1.8V logic families. | Select for non-automotive industrial use where AEC-Q100 is not required and 1.8V DVIO compatibility is unnecessary. |
Compared with ADS7953IRHBT and AD7476ARTZ-REEL7, the MCP33111-10-E/MN uniquely combines 1.8V AVDD operation, AEC-Q100 Grade 1 qualification, and on-demand self-calibration - making it the only option supporting automotive BMS and ultra-low-power portable instrumentation without external calibration infrastructure.
Availability
MCP33111-10-E/MN is available at Aetrix Electronics and suitable for electric vehicle battery management systems, industrial motor control, portable medical instrumentation, high-speed test equipment, and automotive sensor signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for MCP33111-10-E/MN includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microchip Technology is a leading provider of microcontroller, analog, and Flash-IP solutions, serving automotive, industrial, and consumer markets with high-reliability silicon and development tools.
The MCP331xx family was designed specifically for high-speed, high-accuracy analog signal acquisition in space-constrained, power-sensitive applications - emphasizing low-latency conversion, wide supply flexibility, and automotive-grade robustness.
FAQ
What is the maximum SPI clock frequency supported by the MCP33111-10-E/MN?
The MCP33111-10-E/MN supports an SPI SCLK frequency up to 100 MHz under DVIO ≥ 3.3V conditions. At lower DVIO (e.g., 1.7V), the maximum SCLK drops to 62.5 MHz. This high-speed interface enables rapid data readout - critical for real-time control loops using the MCP33111-10-E/MN in motor drive or power supply feedback paths.
Does the MCP33111-10-E/MN require an external reference voltage?
Yes, the MCP33111-10-E/MN requires an external reference voltage applied to the VREF pin, specified from 2.5V to 5.1V. The device does not include an internal reference; VREF directly sets the full-scale input range (0V to VREF), and its stability directly impacts measurement accuracy. A 10 µF tantalum capacitor is recommended at the VREF pin per the MCP33111-10-E/MN datasheet.
How does the self-calibration feature work in the MCP33111-10-E/MN?
The MCP33111-10-E/MN performs automatic self-calibration at power-up to correct offset, gain, and linearity errors. Users can also trigger recalibration on-demand via SPI command (requiring 1024 SCLK cycles), which is especially useful after large environmental changes - such as VREF settling drift - to restore ±0.12 LSB INL without interrupting system operation.
What package options are available for the MCP33111-10-E/MN?
The MCP33111-10-E/MN is offered in two Pb-free surface-mount packages: TDFN-10 (3 mm × 3 mm) and MSOP-10. Both share identical pinout, electrical specifications, and AEC-Q100 qualification. Thermal resistance differs significantly (θJA = 68°C/W for TDFN vs. 202°C/W for MSOP), making TDFN preferred for high-power-density automotive applications.
Is the MCP33111-10-E/MN suitable for automotive applications?
Yes, the MCP33111-10-E/MN is AEC-Q100 qualified for Temperature Grade 1 (-40°C to +125°C), making it suitable for automotive under-hood and cabin applications including battery management, motor control, and sensor signal conditioning. Its 1.8V AVDD, wide DVIO range, and on-demand calibration support robust operation in thermally demanding automotive environments.
MCP33111-10-E/MN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 1M
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI
- Configuration:
- ADC
- Ratio - S/H:ADC:
- 0:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 1.7V ~ 1.9V
- Voltage - Supply, Digital:
- 1.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 10-TDFN (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
MCP33111-10-E/MN FAQ
1.How can I place an order for MCP33111-10-E/MN through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP33111-10-E/MN on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MCP33111-10-E/MN reliable?
The price and inventory of MCP33111-10-E/MN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP33111-10-E/MN is usually 5 days.
3.What payment methods are accepted for MCP33111-10-E/MN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP33111-10-E/MN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP33111-10-E/MN?
MCP33111-10-E/MN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP33111-10-E/MN order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MCP33111-10-E/MN?
For technical support, including MCP33111-10-E/MN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP33111-10-E/MN requirements.
6.How does Aetrix verify that MCP33111-10-E/MN is sourced from the original manufacturer or authorized distributors?
All MCP33111-10-E/MN products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MCP33111-10-E/MN meets industry standards.
7.What is the process for return or replacement of MCP33111-10-E/MN?
All MCP33111-10-E/MN units undergo pre-shipment inspection (PSI). If there is an issue with MCP33111-10-E/MN, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MCP33111-10-E/MN part is unused and in its original packaging.
Return procedure for MCP33111-10-E/MN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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