Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Data Acquisition > Analog to Digital Converters (ADC)

Microchip Technology MCP33111D-05-E/MS

Name: MCP33111D-05-E/MS
Brand: Microchip Technology
SKU: MCP33111D-05-E/MS
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: MCP33111D-05-E/MS

Manufacturer:: Microchip Technology

Category:: Analog to Digital Converters (ADC)

Package:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Datasheet:: MCP33111D-05-E/MS.pdf

Description:: IC ADC 12BIT SAR 10MSOP

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:3,971

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

MCP33111D-05-E/MS from Microchip Technology is a 12-bit, 500 kSPS fully differential successive approximation register (SAR) analog-to-digital converter optimized for high-precision, low-power data acquisition in automotive and industrial systems. It features ±0.12 LSB INL, 73.9 dBFS SNR at 10 kHz, and operates with 1.8V AVDD, 1.7–5.5V DVIO, and 2.5–5.1V external reference - enabling direct interface with PIC32 microcontrollers without level shifters in battery management and motor control applications.

For engineers reviewing the MCP33111D-05-E/MS datasheet, MCP33111D-05-E/MS pinout, MCP33111D-05-E/MS application, or MCP33111D-05-E/MS equivalent, key selection criteria include its AEC-Q100 Grade 1 qualification (-40°C to +125°C), no-latency output architecture, self-calibration capability for offset/gain/linearity, and MSOP-10 package compatibility with space-constrained PCB layouts.

Technical Context

The MCP33111D-05-E/MS implements a fully differential SAR ADC core with internal clock generation independent of SPI SCLK, ensuring deterministic conversion timing. Its input acquisition path uses switched-capacitor sampling with 31 pF input capacitance and 25 MHz -3dB bandwidth, supporting precise differential signal capture across the full ±VREF range.

It supports on-demand recalibration via SPI command (1024 SCLK clocks required) and performs automatic power-up calibration to minimize offset (±0.8 mV), gain (±0.1 LSB), and linearity errors. The device enters ultra-low-power standby mode (<0.8 µA) between conversions, triggered by CNVST rising edge, and delivers output data on SDO during standby for seamless host synchronization.

Key Specifications

Parameter	Value and Actual Design Meaning
Resolution	12-bit with no missing codes - guarantees monotonicity and full code coverage for precision measurement systems.
Sample Rate	500 kSPS throughput - enables real-time monitoring of fast transients in EV battery cell voltage or motor phase current.
Differential Input Range	±VREF (up to ±5.1V) - supports high dynamic range sensing with external reference flexibility and rejection of common-mode noise.
INL / DNL	±0.12 LSB / ±0.06 LSB typical - ensures <0.03% integral linearity error for calibrated sensor interfaces and closed-loop control feedback.
Power Consumption	~1.4 mA during conversion, <0.8 µA in standby - reduces thermal load and extends battery life in portable test equipment.
SPI Interface	Up to 100 MHz SCLK, 3-wire operation (SDI/SCLK/SDO), CNVST as chip select - simplifies host integration with minimal GPIO usage.
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 mm × 3 mm, 0.5 mm pitch), Pb-free, RoHS-compliant surface-mount package suitable for automated assembly and thermally constrained layouts.

Pin/Terminal	Circuit Role	Design Meaning
1: AIN+	Differential analog input positive	Accepts high-side signal of differential pair; referenced to AIN− for common-mode rejection.
2: AVDD	Analog supply voltage	1.8V regulated supply for analog core; requires 1 µF ceramic decoupling capacitor.
3: AIN−	Differential analog input negative	Accepts low-side signal; full-scale range defined as −VREF to +VREF relative to AIN+.
4: SDI	SPI data input	Receives recalibrate command and configuration bits; Schmitt-triggered for noise immunity.
5: SCLK	SPI serial clock	Host-generated clock up to 100 MHz; timing-critical for data readout and command execution.
6: GND	Analog/digital ground reference	Single ground plane connection; critical for minimizing PSRR degradation and offset drift.
7: SDO	SPI data output	Tri-state output presenting 12-bit conversion result MSB-first during standby; 7 pF internal capacitance.
8: DVIO	Digital I/O supply voltage	1.7–5.5V logic interface supply; enables direct connection to 1.8V/3.3V/5V hosts without level shifters.
9: VREF	External reference voltage input	2.5–5.1V precision reference; supplies full-scale range and affects SNR/SINAD performance directly.
10: CNVST	Convert start input	Active-high edge-triggered control; initiates sampling and serves as chip select for SPI transactions.

Key Features

Feature	Design Value
No latency output	Conversion result available immediately after CNVST falling edge - eliminates pipeline delay for real-time control loops.
Self-calibration	Automatic power-up and user-commanded recalibration corrects offset, gain, and linearity errors - maintains accuracy over temperature and time.
Differential input architecture	84 dB CMRR and 70 dB PSRR - rejects noise in high-EMI environments like inverters and switch-mode power supplies.
Ultra-low standby current	<0.8 µA quiescent current - enables always-on monitoring in battery-powered diagnostic tools without significant drain.
Wide DVIO range	1.7–5.5V digital interface - interoperates with legacy 5V MCUs and modern 1.8V SoCs without external level translation.
AEC-Q100 qualified	Grade 1 certification (-40°C to +125°C) - meets automotive reliability requirements for battery monitoring and ADAS subsystems.

Applications

Electric Vehicle Battery Monitoring	Industrial Motor Phase Current Sensing
Use Scenario: Real-time cell voltage and temperature monitoring across 12–100-cell battery packs in BEVs/PHEVs. IC Role / Device Role / Timing Role: High-accuracy, isolated differential ADC capturing millivolt-level voltage differentials between adjacent cells at 500 kSPS. Use Value: Enables precise state-of-charge estimation and cell balancing decisions with ±0.12 LSB INL and AEC-Q100 reliability.	Use Scenario: Closed-loop current feedback in three-phase inverter drives for HVAC compressors and servo motors. IC Role / Device Role / Timing Role: Differential input ADC measuring shunt resistor voltage with 25 MHz input bandwidth and no latency output. Use Value: Supports fast current loop update rates while rejecting PWM switching noise via 84 dB CMRR and differential topology.
Portable Test & Measurement Equipment	High-Voltage Switch-Mode Power Supply Monitoring
Use Scenario: Handheld multimeters and oscilloscope front-ends requiring low power, high resolution, and wide input range. IC Role / Device Role / Timing Role: 12-bit SAR ADC with 73.9 dBFS SNR and 1.4 mA active current, powered from single Li-ion cell. Use Value: Delivers >11.5 ENOB at 10 kHz with <0.8 µA standby draw - extends runtime and maintains measurement fidelity.	Use Scenario: Input/output voltage and current sensing in telecom rectifiers and server PSUs operating at 48–54V rails. IC Role / Device Role / Timing Role: Differential ADC interfacing with isolated amplifiers to monitor high-side bus voltages referenced to system ground. Use Value: 2.5–5.1V VREF flexibility allows scaling to match isolation amplifier output range while maintaining 70 dB PSRR.

Electric Vehicle Battery Monitoring

Industrial Motor Phase Current Sensing

Use Scenario: Real-time cell voltage and temperature monitoring across 12–100-cell battery packs in BEVs/PHEVs.

IC Role / Device Role / Timing Role: High-accuracy, isolated differential ADC capturing millivolt-level voltage differentials between adjacent cells at 500 kSPS.

Use Value: Enables precise state-of-charge estimation and cell balancing decisions with ±0.12 LSB INL and AEC-Q100 reliability.

Use Scenario: Closed-loop current feedback in three-phase inverter drives for HVAC compressors and servo motors.

IC Role / Device Role / Timing Role: Differential input ADC measuring shunt resistor voltage with 25 MHz input bandwidth and no latency output.

Use Value: Supports fast current loop update rates while rejecting PWM switching noise via 84 dB CMRR and differential topology.

Portable Test & Measurement Equipment

High-Voltage Switch-Mode Power Supply Monitoring

Use Scenario: Handheld multimeters and oscilloscope front-ends requiring low power, high resolution, and wide input range.

IC Role / Device Role / Timing Role: 12-bit SAR ADC with 73.9 dBFS SNR and 1.4 mA active current, powered from single Li-ion cell.

Use Value: Delivers >11.5 ENOB at 10 kHz with <0.8 µA standby draw - extends runtime and maintains measurement fidelity.

Use Scenario: Input/output voltage and current sensing in telecom rectifiers and server PSUs operating at 48–54V rails.

IC Role / Device Role / Timing Role: Differential ADC interfacing with isolated amplifiers to monitor high-side bus voltages referenced to system ground.

Use Value: 2.5–5.1V VREF flexibility allows scaling to match isolation amplifier output range while maintaining 70 dB PSRR.

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, parallel/serial interface, 2.7–5.25V AVDD, no integrated reference - requires external REF.	Higher speed but larger 32-pin QFN package; lacks AEC-Q100 qualification and self-calibration.	Select when maximum throughput >500 kSPS is required and board space permits larger footprint.
MCP33111D-10-E/MS	Same 12-bit resolution and pinout, but 1 Msps sample rate and higher 1.6 mA conversion current.	Identical automotive qualification and feature set; trades power for speed in time-critical control loops.	Choose for applications needing faster sampling (e.g., resonant LLC controller feedback) where extra 0.2 mA is acceptable.

Compared with ADS7953IRHBT and MCP33111D-10-E/MS, the MCP33111D-05-E/MS uniquely balances ultra-low standby current (<0.8 µA), AEC-Q100 compliance, and integrated self-calibration in a compact MSOP-10 package - making it optimal for battery-constrained automotive sensing and industrial edge nodes.

Availability

MCP33111D-05-E/MS is available at Aetrix Electronics and suitable for electric vehicle battery management systems, industrial motor control units, portable test equipment, and high-voltage power supply monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for MCP33111D-05-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 MCP331xxD family delivers high-precision, low-power SAR ADCs designed specifically for demanding automotive and industrial data acquisition - emphasizing AEC-Q100 qualification, self-calibration, and flexible digital interface compatibility.

FAQ

What is the maximum external reference voltage supported by the MCP33111D-05-E/MS?

The MCP33111D-05-E/MS supports an external reference voltage (VREF) from 2.5V to 5.1V. Operation above 5.1V violates absolute maximum ratings and may cause permanent damage. At 5.1V, the device achieves its full ±5.1V differential input range and optimal 73.9 dBFS SNR performance per datasheet characterization.

Does the MCP33111D-05-E/MS require external decoupling capacitors, and if so, what values are recommended?

Yes, the MCP33111D-05-E/MS requires three decoupling capacitors: a 1 µF ceramic capacitor on AVDD, a 0.1 µF ceramic capacitor on DVIO, and a 10 µF tantalum capacitor on VREF. These values are specified in Microchip's DS20005947B datasheet to ensure stable analog performance, minimize noise coupling, and maintain PSRR/CMRR specifications across temperature.

How does the self-calibration function work in the MCP33111D-05-E/MS, and when is it triggered?

The MCP33111D-05-E/MS performs automatic self-calibration at power-up to correct offset, gain, and linearity errors. It also supports on-demand recalibration via SPI command, which takes 500–650 ms and requires 1024 SCLK cycles. Recalibration is recommended after large environmental shifts - such as changes in reference voltage stability or ambient temperature extremes - to restore optimal performance.

Can the MCP33111D-05-E/MS interface directly with a 1.8V microcontroller without level shifting?

Yes, the MCP33111D-05-E/MS supports DVIO from 1.7V to 5.5V, allowing direct connection to 1.8V logic systems. Its VIH threshold is 0.7 × DVIO (min 1.26V at 1.8V), and VOL is ≤0.2 × DVIO (max 0.36V), ensuring reliable signal recognition and drive strength without external level translators.

What is the input sampling capacitance and -3dB bandwidth of the MCP33111D-05-E/MS analog front-end?

The MCP33111D-05-E/MS has an input sampling capacitance of 31 pF and a -3dB input bandwidth of 25 MHz. This enables accurate capture of high-frequency signals and fast settling for differential inputs, supporting applications like motor current sensing where transient response and noise rejection are critical.

MCP33111D-05-E/MS Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)

Packaging:: Tube

Product Status:: Active

Number of Bits:: 12

Sampling Rate (Per Second):: 500k

Number of Inputs:: 1

Input Type:: Differential

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

MCP33111D-05-E/MS FAQ

1.How can I place an order for MCP33111D-05-E/MS through Aetrix?

Please submit a Request for Quotation (RFQ) for MCP33111D-05-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 MCP33111D-05-E/MS reliable?

The price and inventory of MCP33111D-05-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 MCP33111D-05-E/MS is usually 5 days.

3.What payment methods are accepted for MCP33111D-05-E/MS?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MCP33111D-05-E/MS transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for MCP33111D-05-E/MS?

MCP33111D-05-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your MCP33111D-05-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 MCP33111D-05-E/MS?

For technical support, including MCP33111D-05-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MCP33111D-05-E/MS requirements.

6.How does Aetrix verify that MCP33111D-05-E/MS is sourced from the original manufacturer or authorized distributors?

All MCP33111D-05-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 MCP33111D-05-E/MS meets industry standards.

7.What is the process for return or replacement of MCP33111D-05-E/MS?

All MCP33111D-05-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with MCP33111D-05-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 MCP33111D-05-E/MS part is unused and in its original packaging.

Return procedure for MCP33111D-05-E/MS:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

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.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

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.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

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…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

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…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

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…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

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 …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

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…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

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…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

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…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

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…