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Microchip Technology MCP33131-05-E/MN
- Part No.:
- MCP33131-05-E/MN
- Manufacturer:
- Microchip Technology
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
MCP33131-05-E/MN.pdf
- Description:
- IC ADC 16BIT SAR 10TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,288
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Product details
Overview
MCP33131-05-E/MN from Microchip Technology is a 16-bit, 500 kSPS successive approximation register (SAR) analog-to-digital converter with single-ended input, no missing codes, and no output latency. It operates from a 1.8V analog supply (AVDD), supports 1.7V–5.5V digital I/O (DVIO), accepts 2.5V–5.1V external reference (VREF), and consumes just 1.4 mA during conversion and ~0.8 µA in standby - enabling high-precision data acquisition in battery-powered EV battery management systems.
For engineers reviewing the MCP33131-05-E/MN datasheet, MCP33131-05-E/MN pinout, MCP33131-05-E/MN application, or MCP33131-05-E/MN equivalent, this page delivers verified electrical specs, package mapping to TDFN-10/MSOP-10, SPI timing constraints up to 100 MHz, AEC-Q100 Grade 1 qualification (-40°C to +125°C), and calibrated performance metrics including ±2.2 LSB INL and 86.7 dBFS SNR at 10 kHz.
Technical Context
The MCP33131-05-E/MN implements a SAR architecture with internal clock generation, decoupling conversion timing from SPI clock (SCLK). Its self-calibration engine corrects offset, gain, and linearity errors at power-up and on-demand, ensuring stable performance across temperature and reference voltage drift.
It features pseudo-differential input operation with single-ended configuration, full-scale range of 0V to +VREF, and ultra-low-power standby mode where sampling capacitors remain connected to inputs while analog circuitry is shut down - enabling rapid wake-and-convert response on CNVST rising edge.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full code coverage for precision measurement applications. |
| Sample Rate | 500 kSPS - supports real-time monitoring of fast transients in motor control and SMPS feedback loops. |
| SNR | 86.7 dBFS at fIN = 10 kHz, VREF = 5V - enables >14.1 ENOB for high-fidelity signal reconstruction. |
| INL / DNL | ±2.2 LSB / ±0.9 LSB typical - ensures accurate end-point linearity critical for closed-loop control calibration. |
| Supply Voltages | AVDD = 1.8V, DVIO = 1.7–5.5V, VREF = 2.5–5.1V - allows direct interfacing with 1.8V/3.3V/5V host MCUs without level shifters. |
| Power Consumption | 1.4 mA during conversion, ~0.8 µA in standby - extends battery life in portable medical and test equipment. |
| Temperature Range | AEC-Q100 Grade 1: -40°C to +125°C - qualified for under-hood automotive and industrial harsh-environment use. |
Pinout & Package
Available in Pb-free TDFN-10 (3 mm × 3 mm) and MSOP-10 packages. Both share identical pin functions and numbering.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: AIN+ | Analog Input | Single-ended analog input node; referenced to GND, full-scale range = 0V to VREF. |
| 2: AVDD | Analog Supply | 1.8V analog power rail; requires 1 µF ceramic decoupling capacitor. |
| 3: AIN− | Reference Input | Ground reference for analog input; tied to system GND in single-ended mode. |
| 4: SDI | SPI Data Input | Host-driven command/data line (e.g., recalibrate command); Schmitt-triggered for noise immunity. |
| 5: SCLK | SPI Clock Input | Up to 100 MHz clock; timing-critical for data capture; low/high times scale with DVIO voltage. |
| 6: GND | Ground Reference | Common return for analog, digital, and reference circuits; must be low-impedance. |
| 7: SDO | SPI Data Output | Tri-state output presenting 16-bit conversion result; valid after tDO delay from SCLK low. |
| 8: DVIO | Digital I/O Supply | 1.7–5.5V logic interface supply; sets VIH/VIL thresholds and VOH/VOL levels. |
| 9: VREF | External Reference | 2.5–5.1V precision reference input; requires 10 µF tantalum decoupling for stability. |
| 10: CNVST | Conversion Start | Edge-triggered control: rising edge initiates sampling; falling edge releases SDO data. |
Key Features
| Feature | Design Value |
|---|---|
| No latency output | Conversion result available immediately after CNVST fall; eliminates pipeline delay in real-time control. |
| On-demand self-calibration | User-initiated recalibration via SPI command restores offset/gain/linearity accuracy after environmental shifts. |
| Wide DVIO range (1.7–5.5V) | Direct interface with PIC32, ARM Cortex-M, and other MCUs across voltage domains - no level-shifter needed. |
| Ultra-low standby current (~0.8 µA) | Enables microamp-level system sleep modes while maintaining input acquisition readiness. |
| AEC-Q100 Grade 1 qualification | Validated for automotive applications including battery monitoring and motor phase sensing in EV powertrains. |
Applications
| Electric Vehicle Battery Management | Industrial Motor Control |
|---|---|
|
Use Scenario: Monitoring cell voltages and pack currents in high-voltage EV battery packs under thermal stress and vibration. IC Role / Device Role / Timing Role: Precision 16-bit ADC capturing analog sensor outputs with 500 kSPS throughput and <750 ns conversion time. Use Value: ±2.2 LSB INL and 86.7 dBFS SNR ensure accurate state-of-charge estimation and cell balancing decisions across -40°C to +125°C. |
Use Scenario: Sampling current shunt and position encoder signals in servo drives for real-time field-oriented control (FOC). IC Role / Device Role / Timing Role: Single-channel SAR ADC providing synchronized, low-latency feedback for PWM update cycles. Use Value: No output latency and 1.4 mA active current enable deterministic control loop execution without added jitter or delay. |
| Medical Patient Monitoring | High-Accuracy Test Equipment |
|
Use Scenario: Digitizing ECG, EEG, and pressure transducer outputs in portable diagnostic devices requiring long battery life. IC Role / Device Role / Timing Role: Low-power, high-SNR ADC operating from 1.8V AVDD and supporting 2.5V–5.1V flexible reference scaling. Use Value: 0.8 µA standby current and 16-bit resolution with no missing codes support FDA-grade signal fidelity in Class II devices. |
Use Scenario: Front-end digitization in benchtop multimeters and automated test equipment demanding repeatability and traceability. IC Role / Device Role / Timing Role: Calibration-grade ADC with factory-trimmed INL/DNL and on-demand self-calibration for metrology-grade accuracy. Use Value: ±2.2 LSB INL and ±0.9 LSB DNL, combined with AEC-Q100 reliability, meet ISO/IEC 17025 uncertainty requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8860IDRCT | 16-bit, 1 MSPS, SPI interface, but requires 2.7–3.6V AVDD and has higher 2.5 mA active current. | Optimized for high-speed lab instrumentation; lacks AEC-Q100 qualification and wide DVIO support. | Prefer when maximum throughput (1 MSPS) is mandatory and automotive qualification is not required. |
| AD7980BRMZ | 16-bit, 1 MSPS, pseudo-differential input, 2.5–5.5V VREF, but only 1.8–5.25V DVIO and no on-demand recalibration. | Used in industrial PLC modules; requires external reference buffer and lacks integrated self-calibration. | Choose when legacy ADI ecosystem compatibility is prioritized over recalibration flexibility and ultra-low standby current. |
Compared with ADS8860IDRCT and AD7980BRMZ, the MCP33131-05-E/MN uniquely combines AEC-Q100 Grade 1 qualification, 0.8 µA standby current, on-demand self-calibration, and 1.7–5.5V DVIO - making it optimal for automotive BMS and battery-powered precision instruments where reliability, power, and recalibration autonomy are co-critical.
Availability
MCP33131-05-E/MN is available at Aetrix Electronics and suitable for electric vehicle battery management systems, industrial motor control drives, portable medical diagnostics, high-accuracy test equipment, and automotive sensor signal conditioning requiring stable component supply across extended temperature ranges.
Supply support for MCP33131-05-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 Inc. is a leading provider of microcontrollers, analog, FPGA, and mixed-signal semiconductors, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The MCP331xx family was designed specifically for high-precision, low-power, automotive-qualified data acquisition in space-constrained applications - emphasizing robustness, ease of integration, and guaranteed performance across extreme temperatures.
FAQ
What is the maximum SPI clock frequency supported by the MCP33131-05-E/MN?
The MCP33131-05-E/MN supports an SPI clock (SCLK) frequency up to 100 MHz, with timing constraints scaling based on DVIO voltage: 10 ns period at DVIO ≥ 3.3V, 12 ns at ≥ 2.3V, and 16 ns at ≥ 1.7V. This allows high-speed data readout while maintaining timing margin in noise-sensitive environments.
Does the MCP33131-05-E/MN require external calibration components?
No - the MCP33131-05-E/MN performs automatic self-calibration at power-up and supports on-demand recalibration via SPI command, eliminating need for external trim components or factory calibration routines. This ensures consistent offset, gain, and linearity performance across temperature and aging without hardware intervention.
Can the MCP33131-05-E/MN operate with a 2.5V reference voltage?
Yes - the MCP33131-05-E/MN accepts VREF from 2.5V to 5.1V. At 2.5V reference, it maintains 16-bit resolution and no missing codes, with SNR reduced to 80.9 dBFS (vs. 86.7 dBFS at 5V), enabling optimized dynamic range for lower-voltage sensor interfaces.
What package options are available for the MCP33131-05-E/MN?
The MCP33131-05-E/MN is offered in two RoHS-compliant, Pb-free packages: 3 mm × 3 mm TDFN-10 and MSOP-10. Both share identical pinout, thermal characteristics (θJA = 68°C/W for TDFN, 202°C/W for MSOP), and electrical specifications - allowing layout reuse across form-factor constraints.
Is the MCP33131-05-E/MN qualified for automotive applications?
Yes - the MCP33131-05-E/MN is AEC-Q100 qualified to Grade 1 (-40°C to +125°C), with full characterization across temperature, voltage, and lifetime stress testing. It is explicitly validated for use in EV battery management, motor control, and chassis electronics per automotive reliability standards.
MCP33131-05-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:
- 16
- 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
MCP33131-05-E/MN FAQ
1.How can I place an order for MCP33131-05-E/MN through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP33131-05-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 MCP33131-05-E/MN reliable?
The price and inventory of MCP33131-05-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 MCP33131-05-E/MN is usually 5 days.
3.What payment methods are accepted for MCP33131-05-E/MN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP33131-05-E/MN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP33131-05-E/MN?
MCP33131-05-E/MN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP33131-05-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 MCP33131-05-E/MN?
For technical support, including MCP33131-05-E/MN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP33131-05-E/MN requirements.
6.How does Aetrix verify that MCP33131-05-E/MN is sourced from the original manufacturer or authorized distributors?
All MCP33131-05-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 MCP33131-05-E/MN meets industry standards.
7.What is the process for return or replacement of MCP33131-05-E/MN?
All MCP33131-05-E/MN units undergo pre-shipment inspection (PSI). If there is an issue with MCP33131-05-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 MCP33131-05-E/MN part is unused and in its original packaging.
Return procedure for MCP33131-05-E/MN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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