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Microchip Technology MCP33141-05-E/MN
- Part No.:
- MCP33141-05-E/MN
- Manufacturer:
- Microchip Technology
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MCP33141-05-E/MN.pdf
- Description:
- IC ADC 12BIT SAR 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,144
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Product details
Overview
MCP33141-05-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 MCP33141-05-E/MN datasheet, MCP33141-05-E/MN pinout, MCP33141-05-E/MN application, or MCP33141-05-E/MN equivalent, this page delivers verified electrical specs, package mapping to TDFN-10/MSOP-10, SPI timing constraints up to 100 MHz, self-calibration behavior, and real-world use cases in motor control and high-precision data acquisition.
Technical Context
The MCP33141-05-E/MN implements a SAR architecture with internal clock generation independent of SCLK, enabling deterministic conversion timing. It supports pseudodifferential operation with single-ended configuration and uses an external reference voltage (VREF) ranging from AVDD to 5.1 V, decoupled from the 1.8 V analog supply.
Its 3-wire SPI interface includes optional BUSY indicator and supports DVIO from 1.7 V to 5.5 V, allowing direct interfacing with PIC32MZ and other host microcontrollers without level shifters. Automatic power-up calibration corrects offset, gain, and linearity errors within 500–650 ms.
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 250 kHz per Nyquist criterion. |
| SNR | 73.3 dBFS at fIN = 10 kHz, VREF = 5 V - supports >12-bit effective resolution in noise-sensitive applications. |
| INL | ±0.09 LSB - ensures high absolute accuracy for calibrated sensor interfaces and closed-loop control. |
| Power Consumption | 1.8 mW total at 500 ksps (AVDD + DVIO + VREF) - suitable for low-power battery-operated systems. |
| Operating Temperature | -40°C to +125°C - qualified for under-hood automotive and industrial environments. |
| SPI Clock Rate | Up to 100 MHz - allows fast data retrieval with minimal host CPU overhead. |
Pinout & Package
Available in Pb-free TDFN-10 (with exposed thermal pad) and MSOP-10 packages. Both packages share identical pinout and footprint compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN+ | Analog input (single-ended) | Primary analog signal input referenced to GND; full-scale range 0 V to VREF. |
| GND | Analog/digital ground | Common reference for analog inputs, supplies, and digital I/O; requires low-impedance connection. |
| SDO | Serial data output | 3-state SPI output delivering 12-bit conversion result MSB-first on SCLK falling edge. |
| SCLK | Serial clock input | Host-provided clock up to 100 MHz; controls data transfer timing and internal sampling synchronization. |
| CNVST | Conversion start / chip select | Rising edge initiates conversion; functions as hardware CS in 3-wire mode. |
| SDI | Serial data input | Accepts recalibrate command and configuration bits; Schmitt-triggered for noise immunity. |
| VREF | External reference voltage | Defines full-scale input range (0 V to VREF); supports 1.8 V to 5.1 V, independent of AVDD. |
| AVDD | Analog supply | 1.8 V ±0.1 V supply for analog core; requires 1 µF ceramic decoupling capacitor. |
| DVIO | Digital I/O supply | 1.7–5.5 V supply for digital interface; enables interoperability with mixed-voltage host systems. |
| EP | Exposed thermal pad | Internally connected to GND; must be soldered to PCB thermal plane for thermal resistance reduction (θJA = 68°C/W in TDFN). |
Key Features
| Feature | Design Value |
|---|---|
| No latency output | Conversion result available immediately after tCNV (1.2–1.4 µs), eliminating pipeline delay in real-time feedback loops. |
| Built-in data accumulator | Integrates up to 1024 samples to increase ENOB to 13.5+ bits - reduces post-processing load in averaging-based BMS algorithms. |
| Self-calibration | On-demand recalibration via SDI command restores ±0.09 LSB INL and ±0.05 LSB DNL after environmental drift or VREF change. |
| AEC-Q100 Grade 1 | Qualified for automotive applications including battery monitoring and motor phase current sensing across -40°C to +125°C. |
| Ultra-low standby current | 1.5 µA typical during input acquisition - extends battery life in always-on sensor nodes and wake-on-event architectures. |
Applications
| Electric Vehicle Battery Management | Motor Control Feedback |
|---|---|
Use Scenario: Monitoring cell voltages and pack current in high-voltage traction battery stacks with isolation barriers. IC Role / Device Role / Timing Role: Primary ADC for isolated voltage sensing front-end, synchronized to PWM cycles via CNVST edge triggering. Use Value: ±0.09 LSB INL and 73.3 dBFS SNR enable <10 mV absolute voltage accuracy over temperature, critical for state-of-charge estimation. | Use Scenario: Sampling motor phase currents in field-oriented control (FOC) drives using shunt resistors. IC Role / Device Role / Timing Role: High-speed, low-latency ADC capturing current waveforms at 500 ksps with deterministic tCYC = 2 µs. Use Value: No latency output and 1.5 µA standby current allow tight current loop closure while minimizing thermal rise in compact inverters. |
| Industrial Test Equipment | Medical Instrumentation |
Use Scenario: Digitizing sensor outputs in portable multimeters and handheld oscilloscopes with battery power. IC Role / Device Role / Timing Role: Precision front-end ADC supporting dual-range measurements (1.8 V and 5.1 V VREF) without hardware reconfiguration. Use Value: Wide DVIO (1.7–5.5 V) and 1.8 V AVDD simplify power architecture and eliminate level shifters in mixed-supply designs. | Use Scenario: Acquiring biopotential signals (ECG, EEG) in portable diagnostic devices requiring low power and high SNR. IC Role / Device Role / Timing Role: Low-noise, low-drift ADC with built-in calibration for stable baseline performance across clinical operating conditions. Use Value: ±0.1 µV/°C offset drift and 84 dB CMRR suppress common-mode interference from AC mains and RF sources. |
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 | 12-bit, 1 Msps, 1.8 V supply, SPI interface, but no built-in self-calibration or data accumulator. | Lacks on-chip calibration and averaging; requires external firmware compensation for INL/DNL drift. | Select when maximum speed (1 Msps) is prioritized over calibration autonomy and power efficiency. |
| MCP33141-10-E/MN | Same 12-bit resolution and pinout, but 1 Msps sample rate and higher 0.66 mA conversion current. | Higher throughput suits faster control loops; increased power draw limits battery runtime in portable designs. | Select when system timing budget demands sub-microsecond tCYC and thermal design accommodates higher dissipation. |
Compared with ADS7042IRUGR and MCP33141-10-E/MN, the MCP33141-05-E/MN uniquely balances 500 ksps throughput, ultra-low 1.5 µA standby current, and autonomous self-calibration-making it optimal for thermally constrained, long-duration automotive and medical sensing where calibration stability outweighs peak speed.
Availability
MCP33141-05-E/MN is available at Aetrix Electronics and suitable for electric vehicle battery management systems, motor control feedback circuits, industrial test equipment, and portable medical instrumentation requiring stable component supply across extended temperature ranges.
Supply support for MCP33141-05-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 is a leading provider of microcontrollers, analog, and Flash-IP solutions, serving automotive, industrial, and consumer markets with high-reliability silicon and development tools.
The MCP331xx family targets high-accuracy, low-power data acquisition in harsh environments, with emphasis on AEC-Q100 compliance, integrated calibration, and flexible voltage interface for seamless integration into next-generation embedded systems.
FAQ
What is the maximum SPI clock frequency supported by the MCP33141-05-E/MN?
The MCP33141-05-E/MN supports an SPI clock frequency up to 100 MHz, with timing validated for tSCLK ≥ 10 ns (DVIO ≥ 3.3 V). At lower DVIO voltages, the maximum SCLK decreases to 83.3 MHz (DVIO ≥ 2.3 V) and 62.5 MHz (DVIO ≥ 1.7 V), as specified in Table 1-2 of the DS20006220A datasheet. This ensures reliable communication across diverse host platforms without compromising conversion integrity.
Does the MCP33141-05-E/MN require an external reference voltage?
Yes, the MCP33141-05-E/MN requires an external reference voltage (VREF) applied to the VREF pin, which sets the full-scale input range from 0 V to VREF. VREF may range from AVDD (1.8 V) up to 5.1 V and is independent of AVDD. The device draws only 110 µA typical during conversion at 500 ksps, enabling stable referencing with low-noise LDOs or precision references like the MCP1501.
How does the self-calibration feature of the MCP33141-05-E/MN work?
The MCP33141-05-E/MN performs automatic offset, gain, and linearity calibration during power-up (taking 500–650 ms), and supports on-demand recalibration via a command sent through the SDI pin. Recalibration requires 1024 SCLK cycles and restores ±0.09 LSB INL and ±0.05 LSB DNL after environmental shifts or VREF changes-critical for maintaining accuracy in automotive and medical applications without host firmware intervention.
What package options are available for the MCP33141-05-E/MN?
The MCP33141-05-E/MN is offered in two RoHS-compliant, Pb-free packages: the 3 mm × 3 mm TDFN-10 with exposed thermal pad (EP), and the 3 mm × 4.9 mm MSOP-10. Both share identical pinout and electrical characteristics. The TDFN-10 provides superior thermal performance (θJA = 68°C/W) due to the EP connection to GND, while the MSOP-10 offers easier manual assembly and optical inspection.
Can the MCP33141-05-E/MN interface directly with a 5 V microcontroller?
Yes, the MCP33141-05-E/MN supports DVIO from 1.7 V to 5.5 V, allowing direct SPI-level interfacing with 5 V microcontrollers such as PIC18F or legacy ARM Cortex-M0+ devices. Its VIH threshold is 0.7 × DVIO (3.5 V min at DVIO = 5 V), and VOL remains ≤ 0.2 × DVIO (≤1.0 V), ensuring robust logic compatibility without external level shifters or pull-up resistors.
MCP33141-05-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
MCP33141-05-E/MN FAQ
1.How can I place an order for MCP33141-05-E/MN through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP33141-05-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 MCP33141-05-E/MN reliable?
The price and inventory of MCP33141-05-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 MCP33141-05-E/MN is usually 5 days.
3.What payment methods are accepted for MCP33141-05-E/MN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP33141-05-E/MN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP33141-05-E/MN?
MCP33141-05-E/MN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP33141-05-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 MCP33141-05-E/MN?
For technical support, including MCP33141-05-E/MN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP33141-05-E/MN requirements.
6.How does Aetrix verify that MCP33141-05-E/MN is sourced from the original manufacturer or authorized distributors?
All MCP33141-05-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 MCP33141-05-E/MN meets industry standards.
7.What is the process for return or replacement of MCP33141-05-E/MN?
All MCP33141-05-E/MN units undergo pre-shipment inspection (PSI). If there is an issue with MCP33141-05-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 MCP33141-05-E/MN part is unused and in its original packaging.
Return procedure for MCP33141-05-E/MN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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