My Inquiry
My Account
Microchip Technology MCP33131-05T-E/MS
- Part No.:
- MCP33131-05T-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MCP33131-05T-E/MS.pdf
- Description:
- IC ADC 16BIT SAR 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,195
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MCP33131-05T-E/MS from Microchip Technology is a 16-bit, 500 kSPS single-ended successive approximation register (SAR) analog-to-digital converter with no missing codes, ultra-low standby current (0.8 µA), and AEC-Q100 Grade 1 qualification (-40°C to +125°C). It operates from a 1.8V analog supply (AVDD), supports 1.7V–5.5V digital I/O (DVIO), and accepts 2.5V–5.1V external reference (VREF), enabling high-precision data acquisition in battery-powered motor control and EV battery management systems.
For engineers reviewing the MCP33131-05T-E/MS datasheet, MCP33131-05T-E/MS pinout, MCP33131-05T-E/MS application, or MCP33131-05T-E/MS equivalent, this page delivers verified electrical specifications, MSOP-10 package mapping, SPI-compatible timing constraints (up to 100 MHz SCLK), self-calibration behavior, and validated automotive-grade performance metrics including SNR (86.7 dBFS), SFDR (98.9 dBc), and ±2.2 LSB INL at 10 kHz input.
Technical Context
The MCP33131-05T-E/MS implements a SAR architecture with internal clock generation-decoupling conversion timing from SPI clock (SCLK)-and uses CNVST as both conversion trigger and chip select. Its pseudo-differential input supports single-ended operation with full-scale range of 0V to VREF, and features automatic power-up calibration plus on-demand recalibration via SPI command.
It achieves stable performance across temperature via offset/gain/linearity correction, maintains <1 µA standby current during input acquisition, and delivers no-latency output by presenting conversion results on SDO immediately after CNVST deassertion. The device's wide DVIO range eliminates level-shifting requirements when interfacing with PIC32 or other 1.7V–5.5V host controllers.
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 throughput-supports real-time sampling of fast transients in motor control and power supply feedback loops. |
| SNR / SINAD | 86.7 dBFS / 86.6 dBFS at 10 kHz, VREF = 5V-enables >14-bit effective resolution in high-fidelity signal capture. |
| INL / DNL | ±2.2 LSB / ±0.9 LSB typical-ensures accurate linearity for closed-loop control and calibration-critical instrumentation. |
| Supply Voltages | AVDD = 1.8V, DVIO = 1.7–5.5V, VREF = 2.5–5.1V-allows flexible system-level voltage domain partitioning and direct interface with diverse MCUs. |
| Self-Calibration | Automatic on power-up and user-triggered via SPI-reduces system-level calibration overhead and maintains accuracy after environmental shifts. |
| Operating Temperature | AEC-Q100 Grade 1: -40°C to +125°C-validated for under-hood automotive and industrial environments without derating. |
Pinout & Package
Package: MSOP-10 (3.0 mm × 3.0 mm, 0.5 mm pitch), Pb-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: AIN+ | Analog Input (non-inverting) | 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 for noise suppression. |
| 3: AIN− | Analog Input (inverting) | Internally connected to GND in single-ended mode; used for pseudo-differential configuration. |
| 4: SDI | SPI Data Input | Command/data input for recalibration and configuration; Schmitt-triggered for noise immunity. |
| 5: SCLK | SPI Clock Input | Supports up to 100 MHz; timing-critical for data readout and command execution. |
| 6: GND | Analog/Digital Ground | Common ground reference for AVDD, DVIO, and analog inputs; must be low-impedance. |
| 7: SDO | SPI Data Output | Tri-state output presenting 16-bit conversion result; valid after CNVST falling edge. |
| 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 Input | 2.5–5.1V precision reference; determines ADC full-scale range and impacts SNR/SFDR performance. |
| 10: CNVST | Conversion Start / Chip Select | Rising edge initiates conversion; falling edge enables SDO output; functions as hardware CS in SPI mode. |
Key Features
| Feature | Design Value |
|---|---|
| No latency output | Conversion result appears on SDO immediately after CNVST deassertion-enables deterministic real-time control loop timing. |
| Ultra-low standby current | 0.8 µA typical during input acquisition-extends battery life in portable medical instruments and IoT sensor nodes. |
| Wide DVIO range | 1.7V–5.5V digital interface-eliminates level shifters when connecting to 1.8V, 3.3V, or 5V microcontrollers like PIC32MZ. |
| On-demand self-calibration | 1024-SCLK recalibration command restores offset/gain/linearity accuracy after reference voltage changes or thermal drift. |
| AEC-Q100 qualified | Grade 1 certification (-40°C to +125°C) with full characterization-meets automotive functional safety prerequisites for BMS and ADAS subsystems. |
| Pseudo-differential input | Configurable single-ended operation with common-mode rejection (CMRR = 84 dB)-rejects noise in noisy industrial environments. |
Applications
| Electric Vehicle Battery Management | Industrial Motor Control |
|---|---|
|
Use Scenario: Real-time cell voltage monitoring and state-of-charge estimation in multi-cell EV battery packs under high EMI conditions. IC Role / Device Role / Timing Role: High-accuracy, low-latency ADC capturing 500 kSPS sampled cell voltages referenced to isolated 3.3V or 5V rails. Use Value: ±2.2 LSB INL and 86.7 dBFS SNR ensure <1 mV measurement error over full temperature range, supporting ISO 26262 ASIL-B compliance. |
Use Scenario: Current sensing and position feedback in servo drives and inverters requiring synchronized sampling of multiple analog channels. IC Role / Device Role / Timing Role: Single-channel SAR ADC providing precise, low-jitter sampling for field-oriented control (FOC) algorithms. Use Value: No-latency output and 500 kSPS throughput enable sub-microsecond control loop closure, improving torque ripple and efficiency. |
| Portable Medical Instrumentation | High-Precision Test Equipment |
|
Use Scenario: Battery-powered ECG/EEG front-ends where low power and high SNR are critical for detecting microvolt-level biological signals. IC Role / Device Role / Timing Role: Low-noise, low-power ADC digitizing amplified biopotential signals with 16-bit resolution and minimal quantization error. Use Value: 0.8 µA standby current extends operating time between charges; 86.7 dBFS SNR preserves signal fidelity without oversampling. |
Use Scenario: Automated test equipment (ATE) performing DC parametric measurements and dynamic signal analysis on semiconductor devices. IC Role / Device Role / Timing Role: Precision reference-grade ADC used in calibration paths and measurement engines requiring traceable accuracy. Use Value: Self-calibration capability reduces annual recalibration frequency; ±2.2 LSB INL meets Class I metrology requirements per IEC 61000-4-30. |
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, AVDD = 2.5–3.6V, VREF = internal/external, no built-in self-calibration. | Higher sample rate but narrower supply range; lacks AEC-Q100 qualification and on-demand recalibration. | Preferred for non-automotive, higher-speed applications where external calibration infrastructure exists. |
| MAX11198ETE+T | 16-bit, 500 kSPS, SPI, AVDD = 2.7–3.6V, VREF = internal/external, ±1.5 LSB INL, no AEC-Q100 rating. | Lower INL and integrated reference, but limited temperature range (-40°C to +85°C) and no automotive qualification. | Selected for cost-sensitive industrial designs where extended temperature operation is not required. |
Compared with ADS8860IDRCT and MAX11198ETE+T, the MCP33131-05T-E/MS uniquely combines AEC-Q100 Grade 1 qualification, on-demand self-calibration, ultra-low 0.8 µA standby current, and 1.7V–5.5V DVIO flexibility-making it the only option suitable for automotive BMS and harsh-environment industrial control without external support circuitry.
Availability
MCP33131-05T-E/MS is available at Aetrix Electronics and suitable for electric vehicle battery management systems, industrial motor control drives, and portable medical instrumentation requiring stable component supply across long production lifecycles.
Supply support for MCP33131-05T-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 high-reliability silicon and development tools.
The MCP331xx family was designed specifically for high-precision, low-power, automotive-grade data acquisition-emphasizing robustness, ease of integration, and minimal external component count in space-constrained embedded systems.
FAQ
What is the maximum SPI clock frequency supported by the MCP33131-05T-E/MS?
The MCP33131-05T-E/MS supports an SPI clock (SCLK) frequency up to 100 MHz, with timing constraints dependent 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 compatibility with legacy and modern microcontrollers across voltage domains.
Does the MCP33131-05T-E/MS require an external reference voltage?
Yes, the MCP33131-05T-E/MS requires an external reference voltage (VREF) in the range of 2.5V to 5.1V. It does not include an internal reference; VREF directly defines the full-scale input range (0V to VREF) and critically impacts SNR, SFDR, and THD performance-verified in datasheet Figures 2-7 through 2-12.
How does the self-calibration function work in the MCP33131-05T-E/MS?
The MCP33131-05T-E/MS performs automatic self-calibration on power-up to correct offset, gain, and linearity errors. Users can also trigger recalibration on-demand via a dedicated SPI command requiring 1024 SCLK cycles. Calibration completes in 500–650 ms and restores accuracy after reference voltage changes or thermal drift-no external components or host software intervention needed.
Is the MCP33131-05T-E/MS pin-compatible with other members of the MCP331xx family?
Yes, the MCP33131-05T-E/MS shares identical pinout and package (MSOP-10) with all MCP331xx-05 and MCP331xx-10 variants-including MCP33121-05T-E/MS and MCP33111-05T-E/MS-enabling drop-in resolution upgrades without PCB redesign. All share the same CNVST-triggered SPI interface and terminal functions.
What is the typical power consumption of the MCP33131-05T-E/MS during conversion?
The MCP33131-05T-E/MS consumes 1.4 mA typical during conversion (at 500 kSPS, AVDD = 1.8V, DVIO = 3.3V, VREF = 5V), resulting in ~4.2 mW total power dissipation. During standby, it draws only 0.8 µA, reducing to ~2.6 µW-ideal for duty-cycled sensing in energy-constrained applications.
MCP33131-05T-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:
- 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-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
MCP33131-05T-E/MS FAQ
1.How can I place an order for MCP33131-05T-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for MCP33131-05T-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 MCP33131-05T-E/MS reliable?
The price and inventory of MCP33131-05T-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 MCP33131-05T-E/MS is usually 5 days.
3.What payment methods are accepted for MCP33131-05T-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP33131-05T-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MCP33131-05T-E/MS?
MCP33131-05T-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MCP33131-05T-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 MCP33131-05T-E/MS?
For technical support, including MCP33131-05T-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP33131-05T-E/MS requirements.
6.How does Aetrix verify that MCP33131-05T-E/MS is sourced from the original manufacturer or authorized distributors?
All MCP33131-05T-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 MCP33131-05T-E/MS meets industry standards.
7.What is the process for return or replacement of MCP33131-05T-E/MS?
All MCP33131-05T-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with MCP33131-05T-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 MCP33131-05T-E/MS part is unused and in its original packaging.
Return procedure for MCP33131-05T-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MCP33131-05T-E/MS Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
