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Microchip Technology MCP33111-05-E/MN
- Part No.:
- MCP33111-05-E/MN
- Manufacturer:
- Microchip Technology
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MCP33111-05-E/MN.pdf
- Description:
- IC ADC 12BIT SAR 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,958
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Product details
Overview
MCP33111-05-E/MN from Microchip Technology is a 12-bit, 500 kSPS successive approximation register (SAR) analog-to-digital converter with single-ended input, no missing codes, and no output latency. It operates from a 1.8V analog supply (AVDD), supports 1.7V–5.5V digital I/O (DVIO), and accepts 2.5V–5.1V external reference (VREF). Designed for high-precision, low-power data acquisition in automotive battery management and motor control systems.
For engineers reviewing the MCP33111-05-E/MN datasheet, MCP33111-05-E/MN pinout, MCP33111-05-E/MN application, or MCP33111-05-E/MN equivalent, this page delivers verified electrical specs, package mapping, SPI timing constraints, AEC-Q100 Grade 1 qualification (-40°C to +125°C), and real-world design implications for high-speed, low-latency ADC integration.
Technical Context
The MCP33111-05-E/MN uses an internal SAR clock independent of the SPI SCLK, enabling deterministic conversion timing (tACQ = 700–800 ns, tCNV = 1200–1300 ns) and stable throughput at 500 kSPS. Its self-calibration engine corrects offset, gain, and linearity errors at power-up and on-demand via SPI command.
It features pseudo-differential input operation with single-ended configuration, full-scale range of 0V to VREF, and ultra-low standby current (~0.8 µA). The wide DVIO range eliminates level shifters when interfacing with PIC32 or other 1.7V–5.5V host controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes - guarantees monotonic transfer function and simplifies software linearization. |
| Sample Rate | 500 kSPS - enables real-time sampling of signals up to ~200 kHz (Nyquist-limited) in motor control and BMS applications. |
| INL / DNL | ±0.12 LSB / ±0.06 LSB (typ) - ensures <0.03% integral nonlinearity error over full scale, critical for precision sensor digitization. |
| SNR / SFDR | 73.8 dBFS / 95.9 dBc at fIN = 10 kHz, VREF = 5.1V - supports >12-bit effective resolution in noisy industrial environments. |
| Supply Voltages | AVDD = 1.8V, DVIO = 1.7–5.5V, VREF = 2.5–5.1V - allows flexible system-level power architecture and direct interface with mixed-voltage MCUs. |
| Self-Calibration | Automatic at power-up + user-triggered recalibration - maintains accuracy across temperature drift and reference voltage changes without external calibration hardware. |
| AEC-Q100 Grade | Grade 1 (–40°C to +125°C) - qualified for under-hood automotive use, including EV battery monitoring and inverter feedback loops. |
Pinout & Package
Package: TDFN-10 (3 mm × 3 mm, 0.5 mm pitch) and MSOP-10 - both RoHS-compliant, thermally optimized (θJA = 68°C/W for TDFN, 202°C/W for MSOP), suitable for space-constrained automotive and industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: AIN+ | Analog Input | Single-ended analog input node; full-scale range = 0V to VREF; 31 pF input capacitance requires proper driver settling. |
| 2: AVDD | Analog Supply | 1.8V ±0.1V analog rail; requires 1 µF ceramic decoupling; powers SAR core and reference buffer. |
| 3: AIN− | Input Reference | Ground reference for single-ended mode; must be connected to system analog ground (not floating). |
| 4: SDI | SPI Data Input | Command/data input (e.g., recalibrate, read config); Schmitt-triggered; VIH = 0.7×DVIO min. |
| 5: SCLK | SPI Clock | Up to 100 MHz clock input; timing-critical for data capture; tSCLK_L/tSCLK_H ≥ 4.5 ns at DVIO ≥ 1.7V. |
| 6: GND | Analog/Digital Ground | Common ground return for AVDD, DVIO, and analog inputs; star grounding recommended. |
| 7: SDO | SPI Data Output | Tri-state output; presents 12-bit result MSB-first after CNVST falling edge; tDO ≤ 16 ns (DVIO ≥ 1.7V). |
| 8: DVIO | Digital I/O Supply | 1.7–5.5V logic interface rail; powers SDI/SDO/SCLK buffers; decouple with 0.1 µF ceramic. |
| 9: VREF | External Reference | 2.5–5.1V precision reference input; supplies 10 µF tantalum decoupling; load current up to 450 µA during conversion. |
| 10: CNVST | Convert Start | Edge-triggered conversion initiator (rising edge); also functions as chip select; tCNVH ≥ 10 ns pulse width required. |
Key Features
| Feature | Design Value |
|---|---|
| No Latency Output | Conversion result available immediately after CNVST falling edge - eliminates pipeline delay for closed-loop control timing. |
| Ultra-Low Standby Current | ~0.8 µA typical - extends battery life in portable test equipment and wireless sensor nodes without sacrificing wake-up speed. |
| Wide DVIO Range | 1.7V–5.5V compatibility - interfaces directly with 1.8V, 3.3V, and 5V microcontrollers (e.g., PIC32MZ) without level-shifting circuitry. |
| On-Demand Self-Calibration | 1024-SCLK recalibration command - restores offset/gain/linearity accuracy after thermal transients or VREF reconfiguration. |
| Pseudo-Differential Mode Support | Configurable single-ended operation with common-mode rejection (CMRR = 84 dB) - improves noise immunity in EMI-prone motor drive environments. |
Applications
| Electric Vehicle Battery Monitoring | Industrial Motor Control Feedback |
|---|---|
|
Use Scenario: Real-time cell voltage and pack current sampling in BMS modules for state-of-charge estimation and thermal runaway prevention. IC Role / Device Role / Timing Role: Primary ADC for high-fidelity analog sensing; synchronized to PWM switching cycles via CNVST edge triggering. Use Value: 500 kSPS throughput and ±0.12 LSB INL ensure sub-10 mV voltage measurement accuracy across –40°C to +125°C, meeting ISO 26262 ASIL-B requirements. |
Use Scenario: Sampling phase currents and DC-link voltage in three-phase inverter drives for field-oriented control (FOC). IC Role / Device Role / Timing Role: High-speed, low-latency ADC feeding current loop controller; CNVST aligned to PWM dead-time for precise current reconstruction. Use Value: No-output-latency architecture and 73.8 dB SNR enable accurate current vector calculation at 20 kHz switching frequencies, reducing torque ripple. |
| Portable Medical Instrumentation | High-Precision Test & Measurement |
|
Use Scenario: Digitizing biopotential signals (ECG, EMG) in handheld diagnostic devices with battery-powered operation. IC Role / Device Role / Timing Role: Low-power, high-accuracy front-end ADC; operates in standby between measurements to minimize quiescent current. Use Value: 0.8 µA standby current and 12-bit linearity preserve battery runtime while maintaining clinical-grade signal fidelity for FDA-cleared devices. |
Use Scenario: Embedded data acquisition in benchtop oscilloscopes and automated test equipment requiring consistent dynamic performance. IC Role / Device Role / Timing Role: Precision ADC subsystem with calibrated reference path; used with external 5.1V reference for metrology-grade measurements. Use Value: 95.9 dB SFDR and on-chip self-calibration reduce need for external trimming, lowering calibration labor and test time in production. |
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 |
|---|---|---|---|
| ADS7042IRUGR (TI) | 12-bit, 1 MSPS, 1.65–3.6V supply only; no VREF pin - internal reference fixed at 2.5V; no self-calibration. | Limited to low-voltage systems; unsuitable for automotive temp range or variable-reference designs. | Select when system uses 3.3V-only rails and requires higher speed but can accept fixed reference and manual calibration. |
| AD7476ARTZ-REEL7 (Analog Devices) | 12-bit, 1 MSPS, AVDD = 2.35–5.25V; no DVIO independence - digital interface tied to AVDD; no AEC-Q100 qualification. | Not rated for automotive use; lacks dual-supply flexibility and temperature robustness for under-hood deployment. | Choose for industrial PLCs where extended temperature range is not required and AVDD/DVIO co-location is acceptable. |
Compared with ADS7042IRUGR and AD7476ARTZ-REEL7, the MCP33111-05-E/MN uniquely combines AEC-Q100 Grade 1 qualification, independent DVIO/AVDD supplies, on-demand self-calibration, and 500 kSPS throughput in a 3×3 mm TDFN - making it the only drop-in option for automotive BMS and high-reliability motor control where reference flexibility and thermal stability are mandatory.
Availability
MCP33111-05-E/MN is available at Aetrix Electronics and suitable for electric vehicle battery management systems, industrial motor control drives, and portable medical instrumentation requiring stable component supply across long product lifecycles.
Supply support for MCP33111-05-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 Inc. is a leading provider of microcontroller, mixed-signal, analog, and Flash-IP solutions, serving automotive, industrial, consumer, and communications markets with high-reliability silicon and development tools.
The MCP331xx family was designed specifically for high-speed, high-accuracy, low-power data acquisition in automotive and industrial applications - emphasizing AEC-Q100 compliance, wide supply flexibility, and integrated calibration to reduce system-level complexity.
FAQ
What is the maximum SPI clock frequency supported by the MCP33111-05-E/MN?
The MCP33111-05-E/MN supports an SPI SCLK frequency up to 100 MHz. At DVIO ≥ 3.3V, the minimum SCLK period is 10 ns; at DVIO ≥ 1.7V, it relaxes to 16 ns (62.5 MHz max). This allows high-speed data readout without bottlenecking the 500 kSPS conversion rate of the MCP33111-05-E/MN.
Does the MCP33111-05-E/MN require external calibration components?
No. The MCP33111-05-E/MN performs automatic self-calibration for offset, gain, and linearity errors at power-up and supports on-demand recalibration via SPI command. No external resistors, capacitors, or calibration firmware are needed - all calibration is handled internally by the MCP33111-05-E/MN.
Can the MCP33111-05-E/MN operate with a 2.5V reference voltage?
Yes. The MCP33111-05-E/MN accepts an external reference voltage (VREF) from 2.5V to 5.1V. At VREF = 2.5V, it maintains 12-bit resolution with SNR = 73.2 dBFS and SFDR = 94.2 dBc (fIN = 10 kHz), making it suitable for low-voltage, low-power systems where headroom is constrained.
Is the MCP33111-05-E/MN pin-compatible with other members of the MCP331xx family?
Yes - all MCP331xx-05 and MCP331xx-10 variants (e.g., MCP33131-05, MCP33121-05) share identical pinouts in both MSOP-10 and TDFN-10 packages. This allows hardware reuse across 12-, 14-, and 16-bit versions, with resolution and sample rate selected solely by part number - a key design flexibility of the MCP33111-05-E/MN family.
What is the input leakage current specification for the MCP33111-05-E/MN analog inputs?
The analog input leakage current (ILEAK_AN_INPUT) for the MCP33111-05-E/MN is ±2 nA typical, with a maximum of ±200 nA during input acquisition (tACQ). This low leakage preserves signal integrity in high-impedance sensor interfaces such as thermocouples or pH electrodes, minimizing measurement error without requiring active guarding.
MCP33111-05-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):
- 500k
- 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
MCP33111-05-E/MN FAQ
1.How can I place an order for MCP33111-05-E/MN through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP33111-05-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 MCP33111-05-E/MN reliable?
The price and inventory of MCP33111-05-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 MCP33111-05-E/MN is usually 5 days.
3.What payment methods are accepted for MCP33111-05-E/MN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP33111-05-E/MN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP33111-05-E/MN?
MCP33111-05-E/MN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP33111-05-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 MCP33111-05-E/MN?
For technical support, including MCP33111-05-E/MN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP33111-05-E/MN requirements.
6.How does Aetrix verify that MCP33111-05-E/MN is sourced from the original manufacturer or authorized distributors?
All MCP33111-05-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 MCP33111-05-E/MN meets industry standards.
7.What is the process for return or replacement of MCP33111-05-E/MN?
All MCP33111-05-E/MN units undergo pre-shipment inspection (PSI). If there is an issue with MCP33111-05-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 MCP33111-05-E/MN part is unused and in its original packaging.
Return procedure for MCP33111-05-E/MN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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