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Microchip Technology MCP33141D-05T-E/MN
- Part No.:
- MCP33141D-05T-E/MN
- Manufacturer:
- Microchip Technology
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MCP33141D-05T-E/MN.pdf
- Description:
- IC ADC 12BIT SAR 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,523
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Product details
Overview
MCP33141D-05T-E/MN from Microchip Technology is a 12-bit, 500 kSPS fully differential successive approximation register (SAR) analog-to-digital converter with no missing codes, ultra-low standby current (1.5 µA), and SPI-compatible 3-wire serial interface. It operates from a 1.8V analog supply (AVDD), supports 1.7–5.5V digital I/O (DVIO), and accepts external reference voltage up to 5.1V for ±5.1V differential input full-scale range - ideal for high-precision battery-powered motor control and EV battery management systems.
For engineers reviewing the MCP33141D-05T-E/MN datasheet, MCP33141D-05T-E/MN pinout, MCP33141D-05T-E/MN application, or MCP33141D-05T-E/MN equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (-40°C to +125°C), built-in self-calibration for offset/gain/linearity, integrated data accumulator enabling up to 18.5-bit ENOB via averaging, and TDFN-10 package with exposed thermal pad for thermal performance in automotive and industrial environments.
Technical Context
The MCP33141D-05T-E/MN implements a true differential SAR architecture with independent analog and digital supply domains: AVDD = 1.8V powers the core analog circuitry, while DVIO (1.7–5.5V) enables direct interfacing with diverse host controllers (e.g., PIC32MZ) without level shifters. Its internal clock drives conversion independently of SCLK, ensuring deterministic timing.
Conversion begins on the rising edge of CNVST; output data appears on SDO during standby mode, supporting continuous streaming. The device performs automatic power-up calibration (~400–550 ms) and supports on-demand recalibration via SPI command to maintain accuracy under changing VREF or temperature conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes - guarantees monotonicity and predictable code transitions across full scale. |
| Sample Rate | 500 kSPS throughput - supports real-time closed-loop control in motor drives and SMPS feedback loops. |
| Differential Input Range | ±5.1V full-scale (FSR = 2 × VREF) - enables high dynamic range sensing of bipolar signals without external signal conditioning. |
| SNR / SINAD | 73.8 dBFS / 73.8 dBFS at fIN = 10 kHz, VREF = 5V - delivers >12-bit effective resolution for precision measurement applications. |
| INL / DNL | ±0.07 LSB / ±0.05 LSB typical - ensures minimal code-dependent error in high-fidelity data acquisition. |
| Supply Current (Standby) | ~1.5 µA at AVDD - extends battery life in portable medical instruments and IoT edge sensors. |
| SPI Clock Rate | Up to 100 MHz SCLK - allows fast data readout with minimal bus overhead and low latency. |
Pinout & Package
Package: 3 mm × 3 mm Pb-free TDFN-10 with exposed thermal pad (pin 10). Optimized for thermal dissipation in high-density automotive PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+ | Differential analog input positive | Accepts input voltage up to VREF + 0.1V; used with AIN− for noise-rejecting differential measurement. |
| AIN− | Differential analog input negative | Completes differential pair; common-mode range is 0V to VREF - requires matched trace routing. |
| GND | Analog ground reference | Must be connected to low-impedance system ground plane; separate from digital ground for optimal SNR. |
| SDO | Serial data output | Three-state SPI output; driven after conversion completes and remains valid during standby for continuous readout. |
| SCLK | Serial clock input | Accepts up to 100 MHz; timing-independent of conversion clock - enables flexible host synchronization. |
| CNVST | Convert start / chip select | Rising edge initiates sampling; falling edge releases SDO - functions as both trigger and CS in 3-wire mode. |
| SDI | Serial data input | Accepts recalibrate commands and configuration bits; Schmitt-triggered for noise immunity. |
| VREF | External reference voltage input | Set from AVDD to 5.1V; determines full-scale range and directly impacts SNR and linearity performance. |
| AVDD | Analog supply voltage | Fixed 1.8V supply; decoupling with 1 µF ceramic capacitor required for stable ADC operation. |
| DVIO | Digital I/O supply voltage | 1.7–5.5V range supports direct interfacing with 1.8V, 3.3V, or 5V microcontrollers without level translation. |
Key Features
| Feature | Design Value |
|---|---|
| No latency output | Data available immediately after conversion completes - eliminates pipeline delay critical for real-time control. |
| Built-in data accumulator | Integrates up to 1024 samples to increase ENOB to 18.5 bits - replaces external averaging firmware/hardware. |
| AEC-Q100 Grade 1 qualified | Validated for automotive use from -40°C to +125°C - meets reliability requirements for under-hood and battery-pack monitoring. |
| Self-calibration engine | Automatically corrects offset, gain, and linearity errors at power-up and on demand - maintains accuracy without factory calibration. |
| Ultra-low standby current | 1.5 µA typical consumption during input acquisition - enables always-on sensing in energy-constrained applications. |
Applications
| Motor Control Feedback | EV Battery Cell Monitoring |
|---|---|
Use Scenario: Real-time phase current and back-EMF sampling in BLDC motor inverters. IC Role / Device Role / Timing Role: High-speed, low-latency ADC capturing synchronized current/voltage waveforms at 500 kSPS for FOC algorithms. Use Value: ±0.07 LSB INL and 73.8 dB SNR ensure precise torque estimation and reduced acoustic noise in motor drive systems. | Use Scenario: Simultaneous voltage and temperature monitoring across 12–96 Li-ion cells in BMS stacks. IC Role / Device Role / Timing Role: Differential input rejects common-mode noise from high-current switching; AEC-Q100 rating ensures reliability in harsh battery environments. Use Value: 1.5 µA standby current enables periodic cell voltage checks without draining auxiliary batteries during vehicle sleep mode. |
| Industrial Test Equipment | Portable Medical Instrumentation |
Use Scenario: Precision DC voltage and resistance measurement in handheld multimeters and calibrators. IC Role / Device Role / Timing Role: 12-bit no-missing-codes resolution with self-calibration provides traceable accuracy without manual trim. Use Value: ±5.1V differential input range supports direct measurement of high-voltage rails up to ±5V without attenuator networks. | Use Scenario: ECG front-end signal digitization in battery-powered patient monitors. IC Role / Device Role / Timing Role: Low-power, low-noise ADC acquiring biopotential signals with high CMRR (84 dB) and PSRR (75 dB). Use Value: 73.8 dB SINAD at 10 kHz preserves diagnostic fidelity of QRS complexes while minimizing power draw from coin-cell batteries. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP33141D-05T-E/MS | Same electrical specs; MSOP-10 package (202°C/W θJA) vs. TDFN-10 (68°C/W θJA) - higher thermal resistance. | Preferred for prototyping or space-tolerant layouts where thermal constraints are less severe. | Select for ease of hand-soldering or legacy board compatibility; avoid in thermally dense automotive modules. |
| ADS7953IRHBT | 12-bit, 1 MSPS, 16-channel SAR ADC with internal reference; no self-calibration; 2.7–5.25V AVDD; SPI interface. | Multi-channel data acquisition vs. single-channel high-accuracy focus; lacks AEC-Q100 qualification. | Choose when channel count >1 is required and automotive qualification is not mandatory; verify VREF stability impact on INL. |
Compared with MCP33141D-05T-E/MS and ADS7953IRHBT, the MCP33141D-05T-E/MN offers superior thermal performance in compact layouts, guaranteed AEC-Q100 compliance for automotive deployment, and on-chip calibration that eliminates field recalibration routines - making it optimal for safety-critical, space-constrained, and thermally demanding applications.
Availability
MCP33141D-05T-E/MN is available at Aetrix Electronics and suitable for motor control feedback, EV battery cell monitoring, and portable medical instrumentation requiring stable component supply across automotive, industrial, and medical design cycles.
Supply support for MCP33141D-05T-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 MCP331x1D family is designed for high-accuracy, low-power, automotive-grade data acquisition - targeting applications where differential input, self-calibration, and AEC-Q100 compliance are essential for functional safety and long-term stability.
FAQ
What is the maximum external reference voltage supported by the MCP33141D-05T-E/MN?
The MCP33141D-05T-E/MN supports an external reference voltage (VREF) from AVDD up to 5.1V. This sets the differential input full-scale range to ±VREF (e.g., ±5.1V), and directly influences SNR, INL, and THD performance. Operation beyond 5.1V violates absolute maximum ratings and may cause permanent damage.
Does the MCP33141D-05T-E/MN require external level-shifting when interfacing with a 5V microcontroller?
No. The MCP33141D-05T-E/MN supports a digital I/O supply (DVIO) range of 1.7V to 5.5V, allowing direct connection to 5V logic without level shifters. Its VIH threshold is 0.7 × DVIO (min 3.5V at DVIO = 5V), and VOL is specified to ≤0.2 × DVIO - ensuring robust interoperability with standard 5V SPI masters.
How does the built-in data accumulator in the MCP33141D-05T-E/MN improve effective resolution?
The MCP33141D-05T-E/MN's data accumulator integrates up to 1024 consecutive samples and computes their average, reducing quantization noise and increasing ENOB to up to 18.5 bits. This eliminates the need for external averaging circuits or firmware-based oversampling, simplifying system design while maintaining deterministic 500 kSPS throughput per conversion cycle.
Is the MCP33141D-05T-E/MN pin-compatible with other devices in the MCP331x1D family?
Yes - the MCP33141D-05T-E/MN shares identical pinout and footprint with all MCP331x1D-XX variants (e.g., MCP33151D-05T-E/MN, MCP33141D-10T-E/MN), including the TDFN-10 package with exposed thermal pad. This enables drop-in resolution or speed upgrades without PCB redesign, provided DVIO, AVDD, and VREF configurations remain compatible.
What is the self-calibration time for the MCP33141D-05T-E/MN, and when does it occur?
The MCP33141D-05T-E/MN performs automatic self-calibration for offset, gain, and linearity errors approximately 400–550 ms after power-up. It also supports on-demand recalibration via SPI command, which takes the same duration. Users must ensure all supplies (AVDD, DVIO, VREF) are fully settled before initiating calibration to guarantee accuracy.
MCP33141D-05T-E/MN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 500k
- Number of Inputs:
- 1
- Input Type:
- Differential
- 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
MCP33141D-05T-E/MN FAQ
1.How can I place an order for MCP33141D-05T-E/MN through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP33141D-05T-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 MCP33141D-05T-E/MN reliable?
The price and inventory of MCP33141D-05T-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 MCP33141D-05T-E/MN is usually 5 days.
3.What payment methods are accepted for MCP33141D-05T-E/MN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP33141D-05T-E/MN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP33141D-05T-E/MN?
MCP33141D-05T-E/MN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP33141D-05T-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 MCP33141D-05T-E/MN?
For technical support, including MCP33141D-05T-E/MN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP33141D-05T-E/MN requirements.
6.How does Aetrix verify that MCP33141D-05T-E/MN is sourced from the original manufacturer or authorized distributors?
All MCP33141D-05T-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 MCP33141D-05T-E/MN meets industry standards.
7.What is the process for return or replacement of MCP33141D-05T-E/MN?
All MCP33141D-05T-E/MN units undergo pre-shipment inspection (PSI). If there is an issue with MCP33141D-05T-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 MCP33141D-05T-E/MN part is unused and in its original packaging.
Return procedure for MCP33141D-05T-E/MN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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