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Microchip Technology MCP33141-05-E/MS
- Part No.:
- MCP33141-05-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MCP33141-05-E/MS.pdf
- Description:
- IC ADC 12BIT SAR 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:177
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Product details
Overview
MCP33141-05-E/MS from Microchip Technology is a 12-bit, single-ended, successive approximation register (SAR) analog-to-digital converter with 500 ksps throughput, 73.3 dBFS SNR at 10 kHz input, ±0.09 LSB INL, and AEC-Q100 Grade 1 qualification for automotive battery management systems.
For engineers reviewing the MCP33141-05-E/MS datasheet, MCP33141-05-E/MS pinout, MCP33141-05-E/MS application, or MCP33141-05-E/MS equivalent, this page delivers verified electrical specs, MSOP-10 package details, SPI timing constraints, self-calibration behavior, and real-world use cases in motor control and high-precision data acquisition.
Technical Context
The MCP33141-05-E/MS implements a SAR architecture with internal clock generation independent of SCLK, enabling deterministic conversion timing. It supports pseudodifferential input operation with single-ended configuration and full-scale range from 0V to VREF (up to 5.1V), while maintaining no-latency output and built-in data accumulation for ENOB enhancement.
Its dual-supply design separates AVDD (1.8V analog rail) from DVIO (1.7–5.5V digital I/O), eliminating level shifters when interfacing with PIC32MZ or other 3.3V/5V hosts. Automatic power-up calibration corrects offset, gain, and linearity errors within 500–650 ms, and on-demand recalibration restores performance after reference voltage perturbations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes - guarantees monotonicity and full code coverage across full temperature range. |
| Sample Rate | 500 ksps - enables real-time sampling of signals up to 250 kHz (Nyquist-limited) in motor current sensing and BMS cell monitoring. |
| SNR | 73.3 dBFS at fIN = 10 kHz, VREF = 5V - supports 12-bit effective resolution under typical high-frequency signal conditions. |
| INL / DNL | ±0.09 LSB / ±0.05 LSB - ensures <0.02% integral linearity error, critical for closed-loop feedback accuracy in power supplies. |
| Supply Voltages | AVDD = 1.8V, DVIO = 1.7–5.5V - allows direct interface with mixed-voltage microcontrollers without external level translation. |
| Self-Calibration | Automatic on power-up + user-triggered command - eliminates manual calibration steps and maintains accuracy over temperature and aging. |
| Operating Temperature | -40°C to +125°C (AEC-Q100 Grade 1) - qualified for under-hood automotive environments and industrial motor drives. |
Pinout & Package
Package: MSOP-10 (10-lead Mini Small Outline Package), Pb-free, with exposed thermal pad (EP) per Table 4-1 in DS20006220A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+ | Analog input (single-ended) | Primary analog input node; accepts 0V to VREF full-scale range; 10 pF input capacitance affects anti-aliasing filter design. |
| GND | Analog ground reference | Common return for analog circuitry; must be separated from digital ground to minimize noise coupling into ADC core. |
| SDO | SPI serial data output | Three-state CMOS output; data valid within 10 ns of SCLK low edge (DVIO ≥3.3V); requires pull-up for high-Z state. |
| SCLK | SPI serial clock input | Accepts up to 100 MHz clock; timing margins tighten below DVIO = 2.3V (min tSCLK_H/tSCLK_L = 4.5 ns). |
| CNVST | Conversion start / chip select | Rising edge initiates sample-and-hold; also serves as active-low CS in 3-wire mode; pulse width ≥10 ns required. |
| SDI | SPI serial data input | Accepts recalibrate command and configuration bits; VIH/VIL thresholds scale with DVIO (0.7×DVIO / 0.3×DVIO). |
| VREF | External reference voltage input | Supports 1.8V–5.1V reference; supplies internal reference buffer; draws 110 µA typical during conversion. |
| AVDD | Analog supply voltage | 1.8V ±0.1V supply; decoupling with 1 µF ceramic capacitor required to maintain PSRR >75 dB. |
| DVIO | Digital I/O supply voltage | 1.7–5.5V logic interface rail; powers all digital pins; decoupling with 0.1 µF ceramic capacitor required. |
| NC | No connect | Pin 10 is not internally connected; must remain unconnected or tied to GND per Microchip recommendation. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in data accumulator | Integrates up to 1024 samples to increase ENOB to 13.2 bits at 500 ksps - reduces post-processing load in battery voltage averaging. |
| No latency output | Conversion result available immediately after CNVST deassertion - enables deterministic timing in real-time control loops. |
| Ultra-low standby current | ~1.5 µA typical - extends battery life in portable test equipment and wireless sensor nodes between conversions. |
| Wide DVIO range | 1.7–5.5V compatibility - interfaces directly with legacy 5V MCUs and modern 1.8V FPGAs without level-shifting circuitry. |
| AEC-Q100 Grade 1 | Qualified for -40°C to +125°C operation - meets automotive electronics reliability requirements for engine control and ADAS subsystems. |
Applications
| Electric Vehicle Battery Monitoring | Industrial Motor Current Sensing |
|---|---|
|
Use Scenario: Real-time cell voltage measurement across 12–96-cell lithium-ion packs with thermal derating compensation. IC Role / Device Role / Timing Role: Primary voltage digitizer in BMS front-end; performs synchronized sampling at 500 ksps with <1 µs aperture delay. Use Value: ±0.09 LSB INL ensures <0.02% full-scale error in SOC estimation, reducing pack-level voltage drift over lifetime. |
Use Scenario: High-fidelity phase current sampling in three-phase inverter gate drivers for servo and traction motors. IC Role / Device Role / Timing Role: Single-channel ADC capturing shunt voltage waveforms; operates with 1.8V AVDD to match isolated gate driver supplies. Use Value: 73.3 dBFS SNR at 10 kHz enables accurate RMS current calculation with <0.5% error in closed-loop torque control. |
| Switch-Mode Power Supply Feedback | Portable Medical Instrumentation |
|
Use Scenario: Digitizing output voltage and current sense signals in digitally controlled 1–3 kW AC/DC converters. IC Role / Device Role / Timing Role: Precision feedback ADC in PID loop; uses self-calibration to maintain accuracy across 40–100°C ambient shifts. Use Value: Gain error drift of ±8 µV/°C limits output regulation error to <0.01% over full temperature range. |
Use Scenario: Analog front-end for handheld ECG and pulse oximetry devices requiring low-power, high-SNR signal capture. IC Role / Device Role / Timing Role: Low-noise ADC operating from coin-cell battery; enters 1.5 µA standby between heartbeat-triggered acquisitions. Use Value: 12-bit resolution with no missing codes ensures faithful reproduction of QRS complex morphology for clinical diagnosis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog-to-digital conversion applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7953IRHBT | 12-bit, 1 MSPS, 16-channel SAR ADC with integrated sequencer; requires external reference; higher 2.25 mW power at full rate. | Multi-channel data acquisition where channel scanning and automatic sequencing are needed; not suitable for single-input, ultra-low-power use. | Select ADS7953IRHBT only when multi-input multiplexing and hardware sequencer functionality outweigh added complexity and power. |
| MCP33121-05-E/MS | 12-bit, 500 ksps, identical pinout and package but lacks built-in data accumulator and ENOB enhancement feature. | Cost-sensitive applications where post-processing averaging is acceptable and 13.2-bit ENOB is not required. | Choose MCP33121-05-E/MS if accumulator function is unused and BOM cost reduction is prioritized over firmware simplification. |
Compared with ADS7953IRHBT and MCP33121-05-E/MS, the MCP33141-05-E/MS uniquely combines AEC-Q100 qualification, on-chip accumulation, and 1.5 µA standby current-making it optimal for automotive BMS and battery-powered instrumentation where reliability, precision, and energy efficiency are jointly critical.
Availability
MCP33141-05-E/MS is available at Aetrix Electronics and suitable for electric vehicle battery management systems, industrial motor control, switch-mode power supply feedback loops, and portable medical instrumentation requiring stable component supply across extended temperature ranges.
Supply support for MCP33141-05-E/MS 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, headquartered in Chandler, Arizona, serving automotive, industrial, consumer, and communications markets.
The MCP331xx family targets high-accuracy, low-power, automotive-grade data acquisition-designed specifically for demanding applications like battery monitoring, motor control, and precision power conversion where SAR architecture, self-calibration, and AEC-Q100 compliance are essential.
FAQ
What is the maximum SPI clock frequency supported by the MCP33141-05-E/MS?
The MCP33141-05-E/MS supports an SCLK frequency up to 100 MHz when DVIO ≥3.3V, with minimum SCLK period of 10 ns. At lower DVIO voltages (e.g., 1.8V), the maximum SCLK drops to 62.5 MHz (16 ns period) to maintain timing margins. This allows flexible host interface design across 1.8V, 3.3V, and 5V controller platforms without external clock dividers.
Does the MCP33141-05-E/MS require an external reference voltage?
Yes, the MCP33141-05-E/MS requires an external reference voltage applied to the VREF pin, supporting 1.8V to 5.1V. The device does not include an internal reference; VREF directly sets the full-scale input range (0V to VREF). Typical designs use a precision 5.0V reference for optimal SNR, though 1.8V references are supported for low-voltage signal chains.
How does the built-in data accumulator improve system performance in the MCP33141-05-E/MS?
The built-in data accumulator in the MCP33141-05-E/MS integrates up to 1024 consecutive samples and outputs the average result, increasing effective number of bits (ENOB) to 13.2 bits at 500 ksps. This reduces firmware overhead for averaging, improves noise immunity in battery voltage monitoring, and enables higher-resolution measurements without external DSP resources.
Is the MCP33141-05-E/MS pin-compatible with other devices in the MCP331xx family?
The MCP33141-05-E/MS shares the same MSOP-10 pinout with MCP33151-05-E/MS, MCP33121-05-E/MS, and MCP33141-10-E/MS, including identical pin functions and placement. However, functional differences exist-such as resolution, sample rate, and accumulator capability-so firmware and timing configurations must be validated per specific variant.
What thermal considerations apply to the MCP33141-05-E/MS in MSOP-10 package?
In the MSOP-10 package, the MCP33141-05-E/MS has a junction-to-ambient thermal resistance (θJA) of 202°C/W. At maximum total power dissipation of 1.8 mW (500 ksps), self-heating is negligible (<0.4°C rise), but PCB layout must include the exposed thermal pad (EP) connected to a solid ground plane to ensure reliable operation at +125°C ambient.
MCP33141-05-E/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- 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-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
MCP33141-05-E/MS FAQ
1.How can I place an order for MCP33141-05-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP33141-05-E/MS 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 MCP33141-05-E/MS reliable?
The price and inventory of MCP33141-05-E/MS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MCP33141-05-E/MS is usually 5 days.
3.What payment methods are accepted for MCP33141-05-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP33141-05-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP33141-05-E/MS?
MCP33141-05-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP33141-05-E/MS 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 MCP33141-05-E/MS?
For technical support, including MCP33141-05-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP33141-05-E/MS requirements.
6.How does Aetrix verify that MCP33141-05-E/MS is sourced from the original manufacturer or authorized distributors?
All MCP33141-05-E/MS 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 MCP33141-05-E/MS meets industry standards.
7.What is the process for return or replacement of MCP33141-05-E/MS?
All MCP33141-05-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with MCP33141-05-E/MS, 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 MCP33141-05-E/MS part is unused and in its original packaging.
Return procedure for MCP33141-05-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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