EVALUATION KIT AVAILABLE Click here for production status of specific part numbers. MAX11301 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 MAX11301 integrates a PIXI , 12-bit, multichannel, 20 Configurable Mixed-Signal Ports Maximize Design analog-to-digital converter (ADC) and a 12-bit, multichan- Flexibility Across Platforms nel, 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, analog input, a DAC analog output, a general purpose -10V 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 20 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 MAX11301 is best Up to 20 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 MAX11301 allows for the averaging of 2, 4, 8, 16, 32, - Logic-Level Shifting Between Any Two Pins 64, or 128 ADC samples from each ADC-configured port 60 Analog Switch Between Adjacent PIXI Ports to improve noise performance. A DAC-configured output port can drive up to 25mA. The GPIO ports can be pro- Internal/External Temperature Sensors, 1C grammed to user-defined logic levels, and a GPI coupled Accuracy with a GPO forms a logic-level translator. Adapts to Specific Application Requirements and Internal and external temperature measurements monitor Allows for Easy Reconfiguration as System Needs programmable conditions of minimum and maximum tem- Change perature limits, using the interrupt to notify the host if one Configurability of Functions Enables Optimized PCB or more conditions occur. The temperature measurement Layout results are made available through the serial interface. Reduces BOM Cost with Fewer Components in The MAX11301 features an internal, low-noise 2.5V volt- Small Footprint age reference and provides the option to use external 2 36mm 40-Pin TQFN voltage references with separate inputs for the DAC and 2 2 ADC. The MAX11301 uses a 400kHz I C-compatible 49mm 48-Pin TQFP 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 -40C to +105C temperature range. Applications Ordering Information appears at end of data sheet. Base-Station RF Power Device Bias Controllers For related parts and recommended products to use with this part, refer System Supervision and Control to www.maximintegrated.com/MAX11301.related. Power-Supply Monitoring Industrial Control and Automation PIXI is a trademark of Maxim Integrated Products, Inc.. Control for Optical Components 19-7579 Rev 1 7/19MAX11301 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 MAX11301 MONITORS TEMP SENSORS D0P 2.5V D0N REFERENCE MUX 20 ADC ADC 20 SEQUENCER CNVT PORT x+1 PIXI PORT 20 DAC SERIAL AD1 DAC MANAGER INTERFACE SEQUENCER PORT x AND AD0 GPI 20 DIGITAL (0x18) CORE SCL GPO 20 SDA INT DGND AGND1 AGND AVSSIO Maxim Integrated 2 www.maximintegrated.com