NXP's N-AFE Analog Front-End Family for Seamless Factory Automation
NXP's N-AFE family brings smart factory features to industrial automation.
These devices offer several key benefits:
- Software-defined flexibility: N-AFE's configurable inputs can measure voltage, current, resistance, or temperature, allowing for easy adaptation to different factory needs.
- Improved product quality: Enhanced measurement accuracy and precision ensure consistent product quality on the manufacturing floor.
- Predictive maintenance: Advanced diagnostics built into N-AFE enable early detection of potential issues, reducing downtime and improving efficiency.
N-AFE simplifies design by integrating essential signal chain components like protections, multiplexers, amplifiers, analog-to-digital converters (ADCs), and digital filtering. Manufacturers can choose from various options like low-power or high-speed models, with or without voltage/current excitation, all while maintaining compatibility for easier implementation.
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Key Applications
Supplier
NXP
NXP Semiconductors enables secure connections and infrastructure for a smarter world, advancing solutions that make lives easier, better and safer.
Industrial Field Instruments
Industrial Field Instruments that Maintain Accuracy Over Temperature.
Resistance Temperature Detectors
NXP N-AFE RTD (Resistance temperature detector)/PTC/NTC.
Data Acquisition and Logger System
Develop Highly Accurate, Integrated and Configurable Systems with NAFE.
NAFE 33352
The NAFEx3352 is a Software Configurable Analog Input and Output Analog Front End Family (AIO-AFE). It features one Analog input/output channel and two universal input channels. The AIO-AFE family integrates a precision 14/16/18-bit digital-to-analog converter (DAC), a 16/24-bit analog-to-digital converter (ADC), a low-drift voltage reference, low-offset drift buffers and high-voltage, high-precision amplifiers with 65 V input-protection circuit for EMC and miswiring scenarios.
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N-AFE application list
| Application | Short description |
|---|---|
| Servo Motors |
Tacho input 0-10V |
| RTD |
Reading RTD and convert directly to digital |
| Strain Gauges / Load cells |
Measuring strain - weight |
| PLC |
Compact and big - scalable |
| Medical Ultrasound |
When there is high voltage (10V range) - TAC - Tomography |
| Electrochemical Sensing |
At low data rate 50nV |
| Thermocouple |
Including cold junction compensation |
| Pressure Sensors |
For analog output pressure sensors |
| NTC |
Including constant current supply |
| Voltage & Current Sensing |
Differential and single-ended – multiple scale |
| Data Acquisition / Loggers |
Highly flexible and configurable |
N-AFE Parts List
| Part | TUE [%FS] | INL [µV] | PGA Gain | ADC Resolution | SPS [max] | Excitation Source V/I | Factory Calibration | Power Consumption [mW] |
|---|---|---|---|---|---|---|---|---|
| NAFE11348B40BS | 0.006 | 83 | 0.2 to 0.8 | 16 | 288000 | No | Y | 125 |
| NAFE11388B40BS | 0.0050000004 | 10 | 0.2 to 0.8 | 24 | 288000 | No | Y | 125 |
| NAFE13188B40BS | 0.0050000004 | 10 | 0.2 to 16 | 24 | 288000 | Yes | N | 150 |
| NAFE13388B40BS | 0.0050000004 | 10 | 0.2 to 16 | 24 | 288000 | Yes | Y | 150 |
| NAFE71388B40BS | 0.0050000004 | 10 | 0.2 to 0.8 | 24 | 576000 | No | Y | 135 |
| NAFE73388B40BS | 0.0050000004 | 10 | 0.2 to 16 | 24 | 576000 | Yes | Y | 160 |
All parts have the same:
- Package type - HVQFN64
- Number of channels - 8
- Max Differential Input Range [±V] - 25
- Input - Differential, Pseudo-Differential, Single Ended
- ADC Architecture - Sigma Delta
- Interface and Input Control - SPI
- Operating Temperature (Min-Max) (℃) = -40 to 125
- Additional Features - 10 GPIOs, Internal Temperature sensor
N-AFE block diagram
AI Module (AFE + MCU)
Universal Input Configuration Challenges
N-AFE part numbering
Technologies
Analog Solutions
See Avnet Silica's Analog offering including interface, power management and signal chain solutions. See supplier solutions, resources and more.
Technologies
Power
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