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Microchip Technology MCP33141-05T-E/MN
- Part No.:
- MCP33141-05T-E/MN
- Manufacturer:
- Microchip Technology
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MCP33141-05T-E/MN.pdf
- Description:
- IC ADC 12BIT SAR 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,144
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Product details
Overview
MCP33141-05T-E/MN from Microchip Technology is a 12-bit, single-ended input, successive approximation register (SAR) analog-to-digital converter with 500 ksps throughput, 73.3 dBFS SNR at 10 kHz, ±0.09 LSB INL, and AEC-Q100 Grade 1 qualification for automotive battery management systems.
For engineers reviewing the MCP33141-05T-E/MN datasheet, MCP33141-05T-E/MN pinout, MCP33141-05T-E/MN application, or MCP33141-05T-E/MN equivalent, this page delivers verified electrical specs, SPI timing constraints, self-calibration behavior, ENOB enhancement via built-in data accumulator, and thermal performance across -40°C to +125°C.
Technical Context
The MCP33141-05T-E/MN implements a SAR architecture with internal clock generation independent of SCLK, enabling deterministic conversion timing. It supports pseudodifferential operation in single-ended mode with full-scale range 0V to VREF (up to 5.1V), while AVDD is fixed at 1.8V and DVIO spans 1.7–5.5V for flexible host interfacing.
Automatic power-up calibration corrects offset, gain, and linearity errors in ~500–650 ms; on-demand recalibration is triggered via SPI command requiring 1024 SCLK cycles. The integrated data accumulator averages up to 1024 samples to increase effective resolution to 18-bit ENOB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes - guarantees monotonicity and full code coverage for precision measurement. |
| Sample Rate | 500 ksps - enables real-time sampling of signals up to ~200 kHz (Nyquist-limited) in high-speed control loops. |
| SNR | 73.3 dBFS at fIN = 10 kHz, VREF = 5V - defines dynamic range for low-noise signal acquisition in motor current sensing. |
| INL | ±0.09 LSB - ensures <0.02% full-scale integral nonlinearity error for accurate voltage monitoring in BMS cell balancing. |
| Power (Active) | ~0.33 mA at AVDD (1.8V) during conversion - yields ~0.6 mW total dissipation, critical for thermally constrained automotive modules. |
| SPI Clock Max | 100 MHz SCLK - supports fast data readout without bottlenecking the 500 ksps throughput rate. |
| Operating Temp | -40°C to +125°C (AEC-Q100 Grade 1) - validated for under-hood automotive environments and industrial motor drives. |
Pinout & Package
Package: TDFN-10 (3 mm × 3 mm, exposed thermal pad). Pin functions are defined per Microchip DS20006220A, Figure 1-1 and Table 4-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+ | Analog Input | Single-ended input node referenced to GND; accepts 0V to VREF full-scale range. |
| GND | Analog/Digital Ground | Common reference for AVDD, DVIO, VREF, and analog input; requires low-impedance connection to thermal pad. |
| SDO | SPI Data Output | Three-state CMOS output; driven after CNVST falling edge; compatible with 1.7–5.5V DVIO hosts. |
| SCLK | SPI Clock Input | Accepts up to 100 MHz; timing-critical for data capture; minimum pulse width 3 ns (DVIO ≥2.3V). |
| CNVST | Conversion Start / Chip Select | Rising edge initiates sampling; falling edge releases SDO; doubles as active-low CS in 3-wire mode. |
| SDI | SPI Data Input | Accepts recalibrate commands and configuration bits; Schmitt-triggered for noise immunity. |
| VREF | External Reference Input | Supports 1.8V–5.1V; supplies full-scale range; draws ≤290 µA during conversion. |
| AVDD | Analog Supply | Fixed 1.8V supply; powers SAR core and reference buffer; requires 1 µF ceramic decoupling. |
| DVIO | Digital I/O Supply | 1.7–5.5V logic interface supply; enables direct connection to PIC32, ARM Cortex-M, or FPGA without level shifters. |
| EP | Exposed Thermal Pad | Internally connected to GND; mandatory soldering for thermal resistance of 68°C/W (TDFN-10). |
Key Features
| Feature | Design Value |
|---|---|
| No latency output | Conversion result available immediately after CNVST falling edge - eliminates pipeline delay in closed-loop feedback. |
| Built-in data accumulator | Averages up to 1024 samples to boost ENOB to 18 bits - reduces external processing load in high-precision sensor interfaces. |
| Self-calibration | Automatic on power-up and user-triggered recalibration - maintains ±0.09 LSB INL over temperature and VREF drift. |
| Ultra-low standby current | ~1.5 µA during input acquisition - extends battery life in portable test equipment and wireless BMS nodes. |
| Wide DVIO range | 1.7–5.5V digital interface - interoperates with legacy 3.3V microcontrollers and modern 1.8V FPGAs without level-shifting circuitry. |
Applications
| Electric Vehicle Battery Management | Industrial Motor Control |
|---|---|
Use Scenario: Monitoring individual Li-ion cell voltages during charging/discharging cycles in traction battery packs. IC Role / Device Role / Timing Role: High-accuracy, AEC-Q100 qualified ADC capturing cell voltage at 500 ksps with <0.02% linearity error. Use Value: Enables precise state-of-charge estimation and cell balancing decisions under harsh thermal conditions (-40°C to +125°C). | Use Scenario: Sampling phase currents in three-phase inverter legs for field-oriented control (FOC) algorithms. IC Role / Device Role / Timing Role: Single-ended SAR ADC delivering synchronized current measurements with no pipeline latency. Use Value: Supports real-time current loop bandwidths >20 kHz using deterministic 500 ksps sampling and immediate data availability. |
| High-Precision Test Equipment | Switch-Mode Power Supply Monitoring |
Use Scenario: Digitizing sensor outputs (e.g., strain gauges, RTDs) in portable calibrators and handheld DMMs. IC Role / Device Role / Timing Role: Low-power 12-bit ADC with integrated accumulator for noise reduction in battery-powered instruments. Use Value: Achieves 18-bit ENOB via hardware averaging, eliminating need for external DSP or oversampling firmware. | Use Scenario: Measuring output voltage ripple and transient response in digitally controlled DC-DC converters. IC Role / Device Role / Timing Role: Fast, stable ADC with 73.3 dBFS SNR and 500 ksps rate for high-fidelity power rail characterization. Use Value: Captures sub-mV ripple components at switching frequencies up to 200 kHz with minimal quantization noise. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MCP33141-05T-E/MS | Same electrical specs; MSOP-10 package (202°C/W θJA) vs. TDFN-10 (68°C/W θJA); no exposed thermal pad. | Preferred for prototyping or low-power non-automotive use where thermal density is less critical. | Select when board space allows larger footprint and thermal design does not require low junction-to-ambient resistance. |
| ADS7953IRHBT | 12-bit, 1 MSPS, 16-channel SAR ADC; wider AVDD (2.7–5.25V); no built-in accumulator; higher typical current (1.5 mA active). | Used in multi-sensor data loggers where channel count outweighs power/performance trade-offs. | Choose when multiplexed multi-channel acquisition is required and system-level averaging replaces hardware accumulator. |
Compared with MCP33141-05T-E/MS, the MCP33141-05T-E/MN offers superior thermal performance for automotive under-hood placement; versus ADS7953IRHBT, it delivers lower power, deterministic latency, and hardware-based ENOB enhancement at the cost of single-channel operation.
Availability
MCP33141-05T-E/MN is available at Aetrix Electronics and suitable for electric vehicle battery management systems, industrial motor control units, high-precision test equipment, and switch-mode power supply monitoring requiring stable component supply across automotive and industrial temperature ranges.
Supply support for MCP33141-05T-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 is a leading provider of microcontrollers, analog devices, and Flash-IP solutions, serving automotive, industrial, and consumer markets with high-reliability silicon.
The MCP331xx family delivers high-speed, low-power SAR ADCs optimized for automotive-grade signal acquisition in battery monitoring, motor control, and power conversion systems.
FAQ
What is the maximum external reference voltage supported by the MCP33141-05T-E/MN?
The MCP33141-05T-E/MN supports an external reference voltage (VREF) from AVDD (1.8V) up to 5.1V. This range sets the full-scale input voltage (0V to VREF), enabling flexible scaling for different sensor output levels. Operation at 5.1V VREF achieves optimal SNR (73.3 dBFS) and minimizes relative quantization error for 12-bit resolution.
Does the MCP33141-05T-E/MN require external level-shifting when interfacing with a 1.8V microcontroller?
No, the MCP33141-05T-E/MN does not require external level-shifting when interfacing with a 1.8V microcontroller. Its DVIO supply range (1.7V–5.5V) fully accommodates 1.8V logic, and all digital pins (SDO, SDI, SCLK, CNVST) are specified for operation at that voltage. The device's Schmitt-trigger inputs further enhance noise immunity in low-voltage environments.
How does the built-in data accumulator in the MCP33141-05T-E/MN improve measurement accuracy?
The built-in data accumulator in the MCP33141-05T-E/MN integrates up to 1024 consecutive conversion results in hardware, effectively performing oversampling and averaging without CPU intervention. This increases effective number of bits (ENOB) up to 18 bits, reducing RMS noise and improving resolution for low-frequency, high-precision measurements such as battery cell voltage monitoring.
What is the self-calibration time for the MCP33141-05T-E/MN, and when does it occur?
The MCP33141-05T-E/MN performs automatic self-calibration for offset, gain, and linearity errors approximately 40 ms after power-up, completing within 500–650 ms. This occurs once all supplies (AVDD, DVIO, VREF) are stable. Users may also trigger on-demand recalibration via SPI command, which requires 1024 SCLK cycles and temporarily halts conversions.
Is the MCP33141-05T-E/MN pin-compatible with other devices in the MCP33151/41-XX family?
Yes, the MCP33141-05T-E/MN shares identical pinout and package dimensions with all members of the MCP33151/41-XX family, including MCP33151-05T-E/MN and MCP33141-10T-E/MN. This allows drop-in replacement between 12-bit/14-bit and 500 ksps/1 Msps variants without PCB layout changes, provided thermal and decoupling requirements are met for the specific variant.
MCP33141-05T-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:
- 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
MCP33141-05T-E/MN FAQ
1.How can I place an order for MCP33141-05T-E/MN through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP33141-05T-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 MCP33141-05T-E/MN reliable?
The price and inventory of MCP33141-05T-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 MCP33141-05T-E/MN is usually 5 days.
3.What payment methods are accepted for MCP33141-05T-E/MN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP33141-05T-E/MN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP33141-05T-E/MN?
MCP33141-05T-E/MN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP33141-05T-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 MCP33141-05T-E/MN?
For technical support, including MCP33141-05T-E/MN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP33141-05T-E/MN requirements.
6.How does Aetrix verify that MCP33141-05T-E/MN is sourced from the original manufacturer or authorized distributors?
All MCP33141-05T-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 MCP33141-05T-E/MN meets industry standards.
7.What is the process for return or replacement of MCP33141-05T-E/MN?
All MCP33141-05T-E/MN units undergo pre-shipment inspection (PSI). If there is an issue with MCP33141-05T-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 MCP33141-05T-E/MN part is unused and in its original packaging.
Return procedure for MCP33141-05T-E/MN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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