Software Configurable Input and Output Analog Front End Family
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The NAFE33352 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.
The device has built-in diagnostic and protection circuits for both the output and input channels, enabling anomaly detection, predictive maintenance, and functional safety. The AIO-AFE is ideal for programmable logic controllers (PLC), Process Control, I/O modules, and data loggers applications.
Product Details
Features
General Features
- ±7 V to ±28 V supply voltage range
- -40 °C to 125 °C temperature range
- 6 mm x 6 mm small TQFN-40 package
Channels Configuration
- One software configurable Analog Input and Output
- Two universal inputs
- Ranges: ±12.5 V, ±25 mA, 1 mOhm-1 MOhm I/O
- Factory calibration or user calibration options
Resolution
- DAC: 14 / 16 / 18-bit options
- ADC: 16 / 24-bit options
Datarate
- DAC: 0 to 100 ksps / 200 ksps for low power/high speed
- ADC: 7.5 sps to 288 ksps / 576 ksps for low power/high speed
Protections
- ±36 V protected I/O (external transient voltage suppressor required for output)
- Short circuit protection on both input and output
Accuracy
- ±0.01 % accuracy at room
- ±0.05 % accuracy overtemperature (after room calibration)