MAX11312

PRODUCTION

PIXI, 12-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 Allows User-Defined ADC, DAC, or GPIO Functionality

Data Sheet (Rev. 1) Product Selection Table
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Overview

  • 12 Configurable Mixed-Signal Ports Maximize Design Flexibility Across Platforms
    • Up to 12 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 12 12-Bit DAC Outputs
      • Range Options: ±5V, 0 to +10V, -10V to 0V
      • 25mA Current Drive Capability with Overcurrent Protection
    • Up to 12 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 a Small Footprint
    • 25mm2 32-Pin TQFN

The MAX11312 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 12 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.

PIXI ports provide highly flexible hardware configuration for 12-bit mixed-signal applications. The MAX11312 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 the -10V to +10V range.

The device 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 device 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 MAX11312 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 MAX11312 is available in a 32-pin TQFN, 5mm x 5mm package specified over the -40°C to +105°C temperature range.

Applications

  • Base-Station RF Power Device Bias Controllers
  • Control for Optical Components
  • Industrial Control and Automation
  • Power-Supply Monitoring
  • System Supervision and Control
MAX11312
PIXI, 12-Port Programmable Mixed-Signal I/O with 12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO
MAX11312: Functional Diagram
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Application Note 1

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Tools & Simulations

Software Development 3

Evaluation Kits

MAX11312PMB

MAX11312PMB# Peripheral Module for the MAX11312

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Features and Benefits

  • Up to 12 12-Bit ADC Programmable Inputs
  • Up to 12 12-Bit DACs with 25mA Current Capability
    • 70mA max at +12V with On-Board Power Supply
    • 30mA (typ) at -12V with On-Board Power Supply
    • Use External Power Supply at VDDIO (VDDIO Jumper Removed) if More Current is Needed
  • Up to 12 Digital I/Os
  • Up to 12 Comparator Inputs
  • Internal or External Reference for ADC and DAC
  • Individually Selectable ADC References for Each Port
  • Internal Temperature Sensor (-40°C to +125°C, ±3°C Accuracy)
  • Two Remote Temperature-Measurement Controllers (-40°C to +150°C, ±3°C Accuracy)
  • 2 x 6-Pin Pmod-Compatible Connector (I2C)
  • RoHS Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX11312PMB1# peripheral module (Pmod™) provides the necessary hardware to interface the MAX11312 12-channel programmable mixed-signal I/O device to any system that utilizes Pmod-compatible expansion ports configurable for I2C communication. The device is a 12-bit multichannel analog-to-digital converter (ADC) and a 12-bit buffered DAC output in a single IC. This device also includes software-configurable general-purpose I/O ports. A local and two remote temperature sensors keep track of junction and environmental temperatures. Adjacent pairs of ports can also be used as logic translator or analog switch. Each pin can also be used as a positive input of a comparator with programmable threshold.

Refer to the MAX11312 IC data sheet for detailed information regarding operation of the device and the USB2PMB2 (Munich) adapter board data sheet for detailed information regarding the Munich board and GUI. Refer to the MAX11312 peripheral module and Munich adaptor board Quick Start Guide for step-by-step evaluation instructions. Refer to the MAX11312 Configuration Software User Guide for detailed information using the design tool.

Applications

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

MAX11312SYS1

MAX11312PMB# Peripheral Module for the MAX11312

Buy Now View Details

Features and Benefits

  • Up to 12 12-Bit ADC Programmable Inputs
  • Up to 12 12-Bit DACs with 25mA Current Capability
    • 70mA max at +12V with On-Board Power Supply
    • 30mA (typ) at -12V with On-Board Power Supply
    • Use External Power Supply at VDDIO (VDDIO Jumper Removed) if More Current is Needed
  • Up to 12 Digital I/Os
  • Up to 12 Comparator Inputs
  • Internal or External Reference for ADC and DAC
  • Individually Selectable ADC References for Each Port
  • Internal Temperature Sensor (-40°C to +125°C, ±3°C Accuracy)
  • Two Remote Temperature-Measurement Controllers (-40°C to +150°C, ±3°C Accuracy)
  • 2 x 6-Pin Pmod-Compatible Connector (I2C)
  • RoHS Compliant
  • Proven PCB Layout
  • Fully Assembled and Tested

Product Details

The MAX11312PMB1# peripheral module (Pmod™) provides the necessary hardware to interface the MAX11312 12-channel programmable mixed-signal I/O device to any system that utilizes Pmod-compatible expansion ports configurable for I2C communication. The device is a 12-bit multichannel analog-to-digital converter (ADC) and a 12-bit buffered DAC output in a single IC. This device also includes software-configurable general-purpose I/O ports. A local and two remote temperature sensors keep track of junction and environmental temperatures. Adjacent pairs of ports can also be used as logic translator or analog switch. Each pin can also be used as a positive input of a comparator with programmable threshold.

Refer to the MAX11312 IC data sheet for detailed information regarding operation of the device and the USB2PMB2 (Munich) adapter board data sheet for detailed information regarding the Munich board and GUI. Refer to the MAX11312 peripheral module and Munich adaptor board Quick Start Guide for step-by-step evaluation instructions. Refer to the MAX11312 Configuration Software User Guide for detailed information using the design tool.

Applications

  • Base-Station RF Power Device Bias Controllers
  • Control for Optical Components
  • Industrial Control and Automation
  • Power-Supply Monitoring
  • System Supervision and Control
MAX11312PMB
MAX11312PMB# Peripheral Module for the MAX11312
MAX11312SYS1
MAX11312PMB# Peripheral Module for the MAX11312

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