EVALUATION KIT AVAILABLE MAX11300 PIXI, 20-Port Programmable Mixed-Signal I/O with 12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO General Description Benefits and Features The MAX11300 integrates a PIXI, 12-bit, multichannel, 20 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 20 12-Bit ADC Inputs integrated circuit. This device offers 20 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 to 0V analog input, a DAC analog output, a general-purpose Programmable Sample Averaging Per ADC Port input (GPI), a general-purpose output (GPO), or an analog Unique Voltage Reference for Each ADC PIXI Port switch terminal. One internal and two external temperature Up to 20 12-Bit DAC Outputs sensors track junction and environmental temperature. Range Options: 5V, 0 to +10V, -10V to 0V Adjacent pairs of ports are configurable as a logic-level 25mA Current Drive Capability with Overcurrent translator for open-drain devices or an analog switch. Protection PIXI ports provide highly flexible hardware configuration Up to 20 General-Purpose Digital I/Os for 12-bit mixed-signal applications. The MAX11300 is best 0 to +5V GPI Input Range suited for applications that demand a mixture of analog and 0 to +2.5V GPI Programmable Threshold Range digital functions. Each port is individually configurable with 0 to +10V GPO Programmable Output Range up to four selectable voltage ranges within -10V to +10V. Logic-Level Shifting Between Any Two Pins The MAX11300 allows for the averaging of 2, 4, 8, 16, 32, 60 Analog Switch Between Adjacent PIXI Ports 64, or 128 ADC samples from each ADC-configured port Internal/External Temperature Sensors, 1C Accuracy to improve noise performance. A DAC-configured output Adapts to Specific Application Requirements and Allows port can drive up to 25mA. The GPIO ports can be for Easy Reconfiguration as System Needs Change programmed to user-defined logic levels, and a GPI coupled with a GPO forms a logic-level translator. Configurability of Functions Enables Optimized PCB Layout Internal and external temperature measurements monitor programmable conditions of minimum and maximum Reduces BOM Cost with Fewer Components in temperature limits, using the interrupt to notify the host if one Small Footprint or more conditions occur. The temperature measurement 36mm2 40-Pin TQFN results are made available through the serial interface. 49mm2 48-Pin TQFP The device features an internal, low-noise 2.5V voltage reference and provides the option to use external voltage Ordering Information appears at end of data sheet. references with separate inputs for the DAC and ADC. The device uses a 4-wire, 20MHz, SPI-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 range of -12.0V to +12.0V. The MAX11300 is available in a 40-pin TQFN, 6mm x 6mm 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 19-7318 Rev 3 4/16MAX11300 PIXI, 20-Port Programmable Mixed-Signal I/O with 12-Bit ADC, 12-Bit DAC, Analog Switches, and GPIO Functional Diagram DAC REF ADC INT REF ADC EXT REF DVDD AVDD AVDDIO CLOCK GENERATOR 2.5V D1P INTERNAL TEMPERATURE EXT AND INT D1N REFERENCE MAX11300 MONITORS TEMP SENSORS D0P 2.5V D0N REFERENCE MUX 20 ADC ADC 20 SEQUENCER CNVT PORT x+1 PIXI PORT 20 DAC SERIAL DOUT DAC MANAGER INTERFACE SEQUENCER PORT x AND CS GPI 20 DIGITAL (0 x 18) CORE SCLK GPO 20 DIN INT DGND AGND1 AGND AVSSIO Maxim Integrated 2 www.maximintegrated.com