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Microchip Technology MCP33141-05T-E/MS
- Part No.:
- MCP33141-05T-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MCP33141-05T-E/MS.pdf
- Description:
- IC ADC 12BIT SAR 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,183
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Product details
Overview
MCP33141-05T-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 MCP33141-05T-E/MS datasheet, MCP33141-05T-E/MS pinout, MCP33141-05T-E/MS application, or MCP33141-05T-E/MS equivalent, this device delivers no-latency conversion, built-in self-calibration for offset/gain/linearity, and SPI-compatible 3-wire interface with optional BUSY indicator - critical for high-reliability, low-power embedded data acquisition.
Technical Context
The MCP33141-05T-E/MS implements a SAR architecture with internal clock generation, decoupling conversion timing from SCLK. It supports pseudodifferential input operation in single-ended configuration with full-scale range of 0V to VREF (up to 5.1V), independent of 1.8V AVDD supply.
Its digital I/O interface operates across 1.7V–5.5V DVIO, enabling direct interfacing with PIC32MZ and other host microcontrollers without level shifters. Automatic power-up calibration completes in ~500 ms, and on-demand recalibration restores performance after reference voltage disturbances.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit with no missing codes - guarantees monotonicity and deterministic code transitions for control-loop feedback. |
| Sample Rate | 500 ksps - enables real-time sampling of motor phase currents or battery cell voltages at ≤200 kHz bandwidth. |
| SNR | 73.3 dBFS at fIN = 10 kHz, VREF = 5V - supports ≥12-bit effective resolution in precision sensor signal chains. |
| INL / DNL | ±0.09 LSB / ±0.05 LSB - ensures accurate DC measurement linearity for BMS voltage monitoring and calibration traceability. |
| Supply Voltages | AVDD = 1.8V, DVIO = 1.7–5.5V, VREF = up to 5.1V - allows flexible system-level power domain partitioning and wide host compatibility. |
| Power Consumption | 330 µA during conversion, 1.5 µA in standby - extends battery life in portable test equipment and remote sensors. |
| Temperature Range | -40°C to +125°C (AEC-Q100 Grade 1) - validated for under-hood automotive and industrial motor drive environments. |
Pinout & Package
Package: MSOP-10 (3.0 mm × 4.9 mm, 0.5 mm pitch), RoHS-compliant, with exposed thermal pad for enhanced thermal dissipation (θJA = 202°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+ | Analog input (single-ended) | Primary analog input node; accepts 0V to VREF range; 10 pF input capacitance requires careful PCB layout for anti-aliasing. |
| GND | Analog ground reference | Common return for AVDD, VREF, and AIN+; must be isolated from digital ground to maintain 73.3 dBFS SNR. |
| SDO | SPI serial data output | Three-state output with 10 ns valid delay; supports up to 100 MHz SCLK for fast data readout in burst mode. |
| SCLK | SPI serial clock input | Master-generated clock; timing-critical for tSCLK_L/tSCLK_H compliance; max 100 MHz at DVIO ≥3.3V. |
| CNVST | Conversion start / chip select | Rising edge triggers sample acquisition; also serves as CS in 3-wire mode; minimum 10 ns pulse width required. |
| SDI | SPI serial data input | Accepts recalibrate command and configuration bits; Schmitt-triggered for noise immunity on noisy boards. |
| VREF | External reference voltage input | Set independently from AVDD (up to 5.1V); supplies full-scale range; requires 10 µF tantalum decoupling. |
| AVDD | Analog supply voltage | 1.8V ±0.1V supply; requires 1 µF ceramic decoupling; powers SAR core and reference buffer. |
| DVIO | Digital I/O supply voltage | 1.7–5.5V logic interface supply; sets VIH/VIL thresholds; enables direct connection to 3.3V or 5V microcontrollers. |
| EP | Exposed thermal pad | Internally connected to GND; must be soldered to PCB thermal plane to maintain junction temperature ≤150°C. |
Key Features
| Feature | Design Value |
|---|---|
| No latency output | Conversion result available immediately after CNVST falling edge - eliminates pipeline delay in closed-loop motor control. |
| Built-in data accumulator | Integrates up to 1024 samples to increase ENOB up to 18 bits - improves resolution for low-frequency sensor averaging without host CPU overhead. |
| Self-calibration | Automatic offset/gain/linearity correction at power-up and on-demand via SPI command - maintains ±0.09 LSB INL across temperature and aging. |
| AEC-Q100 Grade 1 | Qualified for -40°C to +125°C operation with full parametric validation - meets automotive functional safety requirements for battery monitoring ICs. |
| Wide DVIO range | 1.7V–5.5V digital interface - eliminates external level shifters when interfacing with legacy 5V MCUs or modern 1.8V SoCs. |
Applications
| Electric Vehicle Battery Monitoring | Industrial Motor Control Feedback |
|---|---|
|
Use Scenario: Real-time cell voltage and pack current sensing in 400V EV battery packs under vibration, thermal cycling, and EMI stress. IC Role / Device Role / Timing Role: Primary ADC for high-accuracy, low-drift voltage digitization with AEC-Q100 reliability and 500 ksps sampling for transient fault detection. Use Value: ±0.09 LSB INL and 73.3 dBFS SNR enable <1 mV absolute voltage error over lifetime, supporting ISO 26262 ASIL-B diagnostics. |
Use Scenario: Phase current sampling in 3-phase inverter drives for servo and traction motors operating at 20 kHz PWM frequency. IC Role / Device Role / Timing Role: Single-channel SAR ADC providing synchronized, no-latency current feedback to FPGA or MCU for field-oriented control (FOC). Use Value: 500 ksps throughput and 1.5 µA standby current reduce thermal load in compact inverters while maintaining 12-bit fidelity at 10 kHz bandwidth. |
| Portable Test & Measurement Equipment | Switch-Mode Power Supply Monitoring |
|
Use Scenario: Handheld multimeters and oscilloscope front-ends requiring battery-powered, high-SNR analog capture with minimal board space. IC Role / Device Role / Timing Role: Precision ADC core with integrated self-calibration and ultra-low standby current for >100-hour battery life. Use Value: 330 µA conversion current and 1.5 µA standby draw extend AA/AAA battery life while delivering 73.3 dBFS SNR at 10 kHz - exceeding Class II DMM accuracy. |
Use Scenario: Input/output voltage and current monitoring in telecom and server PSUs where efficiency, thermal density, and long-term stability are critical. IC Role / Device Role / Timing Role: High-speed, low-drift ADC for closed-loop regulation and fault logging in digitally controlled DC-DC converters. Use Value: Independent VREF (up to 5.1V) and 1.8V AVDD allow precise scaling of 0–12V rail measurements without external op-amps, reducing BOM count and layout area. |
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, 16-channel, SPI interface; requires external reference; higher 1.2 mA conversion current. | Multi-channel data acquisition vs. single-channel high-precision monitoring; less suitable for space-constrained BMS modules. | Select when multi-input scanning is needed and board area permits larger QFN package and higher power budget. |
| AD7476ARTZ-REEL7 | 12-bit, 1 MSPS, single-channel, no internal calibration; ±1 LSB INL; 2.7–5.25V AVDD only. | Lacks AEC-Q100 qualification and self-calibration; not validated for automotive temperature range or long-term drift. | Choose for cost-sensitive industrial instrumentation where Grade 1 reliability and on-chip calibration are not required. |
Compared with ADS7953IRHBT and AD7476ARTZ-REEL7, the MCP33141-05T-E/MS provides guaranteed ±0.09 LSB INL via on-chip calibration, AEC-Q100 Grade 1 qualification, and 1.8V AVDD operation - making it uniquely suited for automotive battery monitoring and thermally constrained motor control designs.
Availability
MCP33141-05T-E/MS is available at Aetrix Electronics and suitable for electric vehicle battery management systems, industrial motor control feedback loops, and portable test equipment requiring stable component supply, automotive-grade reliability, and long-term lifecycle support.
Supply support for MCP33141-05T-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, serving automotive, industrial, consumer, and communications markets with vertically integrated silicon and software tools.
The MCP331xx family is designed for high-precision, low-power, automotive-qualified data acquisition in space- and energy-constrained systems - emphasizing no-latency conversion, on-chip calibration, and robust SPI interface for real-time control applications.
FAQ
What is the maximum SCLK frequency supported by the MCP33141-05T-E/MS?
The MCP33141-05T-E/MS supports up to 100 MHz SCLK when DVIO ≥3.3V, with minimum SCLK period of 10 ns. At lower DVIO (e.g., 1.8V), the maximum SCLK drops to 62.5 MHz (16 ns period) to meet timing specifications. This allows high-speed data transfer while maintaining compatibility with both legacy and modern host controllers.
Does the MCP33141-05T-E/MS require an external reference voltage?
Yes, the MCP33141-05T-E/MS requires an external reference voltage applied to the VREF pin, which sets the full-scale input range (0V to VREF). VREF can be as high as 5.1V and is independent of the 1.8V AVDD supply. A 10 µF tantalum capacitor is recommended at the VREF pin for stability and noise rejection.
How does the self-calibration function work in the MCP33141-05T-E/MS?
The MCP33141-05T-E/MS performs automatic offset, gain, and linearity calibration at power-up (~500 ms duration) and supports on-demand recalibration via SPI command. Recalibration requires 1024 SCLK cycles and restores ±0.09 LSB INL after environmental shifts - such as VREF settling errors or thermal transients - without host firmware intervention.
What is the purpose of the EP (exposed pad) on the MCP33141-05T-E/MS MSOP-10 package?
The EP (exposed thermal pad) on the MCP33141-05T-E/MS MSOP-10 package is internally connected to GND and must be soldered to a PCB thermal plane. It reduces thermal resistance (θJA = 202°C/W) to maintain junction temperature within safe limits, especially during sustained 500 ksps operation at +125°C ambient - critical for AEC-Q100 compliance.
Can the MCP33141-05T-E/MS interface directly with a 5V microcontroller?
Yes, the MCP33141-05T-E/MS supports DVIO from 1.7V to 5.5V, so it can interface directly with 5V microcontrollers without level-shifting circuitry. Its VIH threshold is 0.7×DVIO (3.5V min at 5V DVIO), and VOL is guaranteed ≤0.2×DVIO (1.0V max), ensuring reliable logic-level compatibility across the full DVIO range.
MCP33141-05T-E/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- 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-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
MCP33141-05T-E/MS FAQ
1.How can I place an order for MCP33141-05T-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP33141-05T-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 MCP33141-05T-E/MS reliable?
The price and inventory of MCP33141-05T-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 MCP33141-05T-E/MS is usually 5 days.
3.What payment methods are accepted for MCP33141-05T-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP33141-05T-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP33141-05T-E/MS?
MCP33141-05T-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP33141-05T-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 MCP33141-05T-E/MS?
For technical support, including MCP33141-05T-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP33141-05T-E/MS requirements.
6.How does Aetrix verify that MCP33141-05T-E/MS is sourced from the original manufacturer or authorized distributors?
All MCP33141-05T-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 MCP33141-05T-E/MS meets industry standards.
7.What is the process for return or replacement of MCP33141-05T-E/MS?
All MCP33141-05T-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with MCP33141-05T-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 MCP33141-05T-E/MS part is unused and in its original packaging.
Return procedure for MCP33141-05T-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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