4-Channel, Dual, Simultaneous Sampling, 2.2V to 3.6V, 12-Bit, 3Msps SAR ADC in Tiny 3mm x 3mm TQFN Package

High-Speed, Ultra-Low-Power Simultaneous Sampling SAR ADC in a Small Form Factor

Please check latest availability status for a specific part variant.


The MAX11190 is a 4-channel, dual, multiplexed, 12-bit, compact, high-speed, low-power, successive approximation analog-to-digital converter (ADC). This high-performance dual ADC includes high-dynamic range sample-and-holds and a high-speed serial interface. This ADC accepts a full-scale input from 0V to the reference voltage.

The device features two dual, single-ended analog inputs connected to two ADC cores using 2:1 MUXs. The device also includes a separate supply input for data interface and dedicated inputs for reference voltage.

This device operates from a 2.2V to 3.6V supply and consumes only 10.5mW at 3Msps. The device includes full power-down mode and fast wake-up for optimal power management and a high-speed 3-wire serial interface. The 3-wire serial interface directly connects to SPI, QSPI, and MICROWIRE® devices without external logic. Each of the two internal ADCs has its own dedicated DOUTA/DOUTB for faster data communication.

Excellent dynamic performance, low voltage, low power, ease of use, and small package size make this converter ideal for simultaneous data-acquisition applications, and for other applications that demand low power consumption and minimal space.

The device is available in a 3mm x 3mm, 16-pin TQFN package and operates over the -40°C to +125°C temperature range.
MAX11190: Functional Diagram MAX11190: Functional Diagram Enlarge+

Key Features

  • Integration and Packaging Save Space
    • Simultaneous Sampling
    • Dual, 4-Channel, Single-Ended 12-Bit Resolution ADC (2 x 2)
    • 16-Pin, 3mm x 3mm TQFN Package
  • Excellent Performance Ideal for Motor Control Applications
    • 72dB SNR
    • 3Msps Conversion Rate without Pipeline Delay
    • External Reference Inputs
    • Wide -40°C to +125°C Operation
  • Low Power Design Simplifies Power-Supply Requirements
    • Very Low Power Consumption at 5µA/ksps
    • 10.5mW at 3Msps
    • 2.2V to 3.6V Supply Voltage
    • 2.6µA Power-Down Current
  • Dual SPI Ports Simplifies System Design
    • SPI-/QSPI-/MICROWIRE-Compatible Serial Interface with Two DOUTA/DOUTB Pins
    • Dedicated Digital Output Supply Allows Serial Interface to Directly Connect to 1.5V, 1.8V, 2.5V, or 3V Digital Systems


  • Medical Instrumentation
  • Motor Control
  • Process Control
  • Simultaneous Data Acquisition

See parametric specs for Precision ADCs (< 5Msps) (437)

Part NumberResolution
Input Chan.Conv. Rate
ADC ArchitectureData BusDiff/S.E. InputExternal VREF
External VREF
Unipolar VIN
ADCmaxminmaxmaxSee Notes
MAX11190 12
3-Wire SPI
S.E. Only13.653.672-851
$4.22 @1k

Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

Technical Documents

Tutorial 2094 A Simple ADC Comparison Matrix

Tools & Models

  • MAX11190 IBIS Model
  • Request Reliability Report for: MAX11190 
    Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C   Material Composition  

    Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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    Related Resources

    Type ID Title
    Tutorial 2094 A Simple ADC Comparison Matrix