EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX11311 PIXI, 12-Port Programmable Mixed-Signal I/O with 12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO General Description Benefits and Features The MAX11311 integrates a PIXI, 12-bit, multichannel, 12 Configurable Mixed-Signal Ports Maximize Design analog-to-digital converter (ADC) and a 12-bit, multichannel, Flexibility Across Platforms buffered digital-to-analog converter (DAC) in a single Up to 12 12-Bit ADC Inputs integrated circuit. This device offers 12 mixed-signal high- Single-Ended, Differential, or Pseudo-Differential voltage, bipolar ports, which are configurable as an ADC Range Options: 0 to 2.5V, 5V, 0 to +10V, -10V analog input, a DAC analog output, a general-purpose to 0V input (GPI), a general-purpose output (GPO), or an analog Programmable Sample Averaging Per ADC Port switch terminal. One internal and two external temperature Unique Voltage Reference for Each ADC PIXI Port sensors track junction and environmental temperature. Up to 12 12-Bit DAC Outputs Adjacent pairs of ports are configurable as a logic-level Range Options: 5V, 0 to +10V, -10V to 0V translator for open-drain devices or an analog switch. 25mA Current Drive Capability with Overcurrent PIXI ports provide highly flexible hardware configuration Protection for 12-bit mixed-signal applications. The MAX11311 is best Up to 12 General-Purpose Digital I/Os suited for applications that demand a mixture of analog and 0 to +5V GPI Input Range digital functions. Each port is individually configurable with 0 to +2.5V GPI Programmable Threshold Range up to four selectable voltage ranges within -10V to +10V. 0 to +10V GPO Programmable Output Range The MAX11311 allows for the averaging of 2, 4, 8, 16, Logic-Level Shifting Between Any Two Pins 32, 64, or 128 ADC samples from each ADC-configured 60 Analog Switch Between Adjacent PIXI Ports port to improve noise performance. A DAC-configured Internal/External Temperature Sensors, 1C output port can drive up to 25mA. The GPIO ports can be Accuracy programmed to user-defined logic levels, and a GPI Adapts to Specific Application Requirements and coupled with a GPO forms a logic-level translator. Allows for Easy Reconfiguration as System Needs Change Internal and external temperature measurements monitor programmable conditions of minimum and maximum tem- Configurability of Functions Enables Optimized PCB perature limits, using the interrupt to notify the host if one Layout or more conditions occur. The temperature measurement Reduces BOM Cost with Fewer Components in results are made available through the serial interface. Small Footprint The MAX11311 features an internal, low-noise 2.5V voltage 2 25mm 32-Pin TQFN reference and provides the option to use external voltage references with separate inputs for the DAC and ADC. The device uses a 4-wire, 20MHz, SPI-compatible serial Ordering Information appears at end of data sheet. 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 range of -12.0V to +12.0V. The MAX11311 is available in a 32-pin TQFN, 5mm x 5mm package or a 48-pin TQFP, 7mm x 7mm package specified over the -40C to +105C temperature range. Applications Base Station RF Power Device Bias Controllers System Supervision and Control Power-Supply Monitoring Industrial Control and Automation PIXI is a trademark of Maxim Integrated Products, Inc. Control for Optical Components 19-8455 Rev 1 7/19MAX11311 PIXI, 12-Port Programmable Mixed-Signal I/O with 12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO Functional Diagram DAC REF ADC INT REF DVDD AVDD AVDDIO CLOCK GENERATOR 2.5V D1P INTERNAL TEMPERATURE EXT AND INT D1N MAX11311 REFERENCE MONITORS TEMP SENSORS D0P 2.5V D0N REFERENCE MUX (0 x 5) 12 PORT x+1 ADC ADC 12 SEQUENCER CNVT PORT x PIXI PORT SERIAL DAC 12 DOUT DAC MANAGER INTERFACE SEQUENCER AND PORT y+1 CS GPI 12 DIGITAL CORE SCLK PORT y GPO 12 (6 y 11) DIN INT DGND AGND1 AGND AVSSIO Maxim Integrated 2 www.maximintegrated.com