PIXI, 20-Port Programmable Mixed-Signal I/O with 12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO

Industry's First Configurable High-Voltage Mixed Signal I/O Device Allows User-Defined ADC, DAC, or GPIO Functionality

Please check latest availability status for a specific part variant.


The MAX11301 integrates a PIXI™, 12-bit, multichannel, analog-to-digital converter (ADC) and a 12-bit, multichannel, buffered digital-to-analog converter (DAC) in a single integrated circuit. This device offers 20 mixed-signal high-voltage, bipolar ports, which are configurable as an ADC analog input, a DAC analog output, a general-purpose input (GPI), a general-purpose output (GPO), or an analog switch terminal. One internal and two external temperature sensors track junction and environmental temperature. Adjacent pairs of ports are configurable as a logic-level translator for open-drain devices or an analog switch.

Custom designs are easily created using the MAX11301 configuration GUI software. Watch this video to learn (Mandarin) how to create a design using the MAX11300 GUI configuration software and the MAX11301 Evaluation Kit.

PIXI ports provide highly flexible hardware configuration for 12-bit mixed-signal applications. The MAX11301 is best suited for applications that demand a mixture of analog and digital functions. Each port is individually configurable with up to four selectable voltage ranges within -10V to +10V.

The MAX11301 allows for the averaging of 2, 4, 8, 16, 32, 64, or 128 ADC samples from each ADC-configured port to improve noise performance. A DAC-configured output port can drive up to 25mA. The GPIO ports can be programmed to user-defined logic levels, and a GPI coupled with a GPO forms a logic-level translator.

Internal and external temperature measurements monitor programmable conditions of minimum and maximum temperature limits, using the interrupt to notify the host if one or more conditions occur. The temperature measurement results are made available through the serial interface.

The MAX11301 features an internal, low-noise 2.5V voltage reference and provides the option to use external voltage references with separate inputs for the DAC and ADC. The MAX11301 uses a 400kHz I²C-compatible serial interface, operating from a 5V analog supply and a 1.8V to 5.0V digital supply. The PIXI port supply voltages operate from a wide -12.0V to +12.0V.

The MAX11301 is available in a 40-pin TQFN, 6mm x 6mm package or a 48-pin TQFP, 9mm x 9mm package specified over the -40°C to +105°C temperature range.

MAX11301: Functional Diagram MAX11301: Functional Diagram Enlarge+

Key Features

  • 20 Configurable Mixed-Signal Ports Maximize Design Flexibility Across Platforms
    • Up to 20 12-Bit ADC Inputs
      • Single-Ended, Differential, or Pseudo-Differential
      • Range Options: 0 to 2.5V, ±5V, 0 to +10V, -10V to 0V
      • Programmable Sample Averaging Per ADC Port
      • Unique Voltage Reference for Each ADC PIXI Port
    • Up to 20 12-Bit DAC Outputs
      • Range Options: ±5V, 0 to +10V, -10V to 0V
      • 25mA Current Drive Capability with Overcurrent Protection
    • Up to 20 General-Purpose Digital I/Os
      • 0 to +5V GPI Input Range
      • 0 to +2.5V GPI Programmable Threshold Range
      • 0 to +10V GPO Programmable Output Range
      • Logic-Level Shifting Between Any Two Pins
    • 60Ω Analog Switch Between Adjacent PIXI Ports
    • Internal/External Temperature Sensors, ±1°C Accuracy
  • Adapts to Specific Application Requirements and Allows for Easy Reconfiguration as System Needs Change
  • Configurability of Functions Enables Optimized PCB Layout
  • Reduces BOM Cost with Fewer Components in Small Footprint
    • 36mm² 40-Pin TQFN
    • 49mm² 48-Pin TQFP


  • Base-Station RF Power Device Bias Controllers
  • Control for Optical Components
  • Industrial Control and Automation
  • Power-Supply Monitoring
  • System Supervision and Control

See parametric specs for Precision ADCs (< 5Msps) (432)

Part NumberResolution
Input ChannelsConv. Rate
ADC ArchitectureData BusDiff/S.E. InputInternal VREF
External VREF
External VREF
Unipolar VIN
Bipolar VIN
ADCmaxnominalminmaxmaxmaxSee Notes
MAX11301 1220400SARI2CBoth2.522.7510572-822.5
$6.16 @1k

See parametric specs for Precision DACs (247)

Part NumberResolution
ChannelsOutput TypeReferenceINL
InterfaceSupply Range
Supply Range
Settling Time
maxminmaxmaxtypSee Notes
MAX11301 1220Voltage- BufferedInt./Ext.1.5Serial - I2C4.755.251840
See Data Sheet
$6.16 @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.

MAX11301EVKIT: Evaluation Kit for MAX11301
MAX11301WING: Evaluation Kit for the MAX11301 PIXI Mixed-Signal IO

Tools & Models

  • MAX11301 IBIS Model
  • Request Reliability Report for: MAX11301 
    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
    Evaluation Board9666MAX11301WING Evaluation Kit for the MAX11301 PIXI Mixed-Signal IO
    Evaluation Board8767MAX11301EVKIT Evaluation Kit for MAX11301