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MAX11301

更新时间: 2024-11-07 14:57:39
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55页 2721K
描述
PIXI、20端口可编程混合信号I/O,带有12位ADC、12位DAC、模拟开关和GPIO

MAX11301 数据手册

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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  
20 Configurable Mixed-Signal Ports Maximize Design  
Flexibility Across Platforms  
The MAX11301 integrates a PIXI , 12-bit, multichannel,  
analog-to-digital converter (ADC) and a 12-bit, multichan-  
nel, 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.  
• 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  
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.  
• 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  
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 pro-  
grammed to user-defined logic levels, and a GPI coupled  
with a GPO forms a logic-level translator.  
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  
Internal and external temperature measurements monitor  
programmable conditions of minimum and maximum tem-  
perature 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.  
Configurability of Functions Enables Optimized PCB  
Layout  
Reduces BOM Cost with Fewer Components in  
The MAX11301 features an internal, low-noise 2.5V volt-  
age reference and provides the option to use external  
voltage references with separate inputs for the DAC and  
Small Footprint  
2
• 36mm 40-Pin TQFN  
2
2
• 49mm 48-Pin TQFP  
ADC. The MAX11301 uses a 400kHz I C-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.  
Applications  
Base-Station RF Power Device Bias Controllers  
System Supervision and Control  
Power-Supply Monitoring  
Ordering Information appears at end of data sheet.  
For related parts and recommended products to use with this part, refer  
to www.maximintegrated.com/MAX11301.related.  
Industrial Control and Automation  
Control for Optical Components  
PIXI is a trademark of Maxim Integrated Products, Inc..  
19-7579; Rev 1; 7/19  

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