NAFE13188B40BSE

Analog Front End (AFE) Overview

The NAFE13188B40BSE is a universal analog front-end (AFE) featuring eight high-voltage inputs and a 24-bit sigma-delta ADC. It supports data rates from 7.5 SPS to 288 kSPS with simultaneous 50 Hz/60 Hz line rejection. The device integrates programmable gain amplifiers (PGA) with gains from x0.2 to x16, precise voltage and current excitation sources, and an internal temperature sensor. Operating on a 3.3 V supply with HV rails up to ±24 V, it provides robust diagnostics and GPIOs in a 64-pin HVQFN package.

Analog Front End (AFE) Feature Summary

• Eight configurable high-voltage inputs supporting single-ended or differential modes up to ±25 V
• 24-bit resolution with data rates ranging from 7.5 SPS to 288 kSPS
• Integrated precision voltage and current excitation sources for sensor interfacing
• Comprehensive diagnostic system including overvoltage detection and internal temperature monitoring

Analog Front End (AFE) Applications

• Programmable logic controllers (PLCs)
• Industrial I/O modules
• Data acquisition systems

Analog Front End (AFE) Procurement Notes

Verify the specific suffix 'BSE' indicates tray packaging when sourcing components. Confirm that this variant lacks factory calibration coefficients, requiring user calibration for optimal accuracy. Ensure the design accommodates the required external decoupling capacitors for the HV and LV power supplies as specified in the datasheet.

Analog Front End (AFE) Selection Notes

Select this part for applications requiring high-speed scanning of multiple channels without pre-calibrated offsets. Compare against the NAFE13388 if factory calibration is preferred, or the NAFE73388 if higher speed performance is critical. Ensure the host system can handle the SPI interface timing and manage the sequencer configurations for multi-channel operations.

Analog Front End (AFE) Part Context

This component belongs to the NAFE13388 family of highly configurable industrial AFEs. It shares the same pinout and software compatibility with other family members like the NAFE13388 and NAFE73388, allowing for scalable designs across different accuracy and speed requirements within the same hardware platform.

Analog Front End (AFE) Replacement Considerations

NAFE13388B40BSE

Analog Front End (AFE) FAQ

Does the NAFE13188B40BSE include factory calibration?

No, this specific part number does not include factory calibration coefficients. Users must perform end-to-end system self-calibration using the integrated precise voltage sources.

What is the maximum input voltage range supported?

The device supports universal inputs with ranges up to ±25 V. It includes internal diode protection and can withstand overvoltage conditions up to ±36 V for less than one hour.

How many GPIOs are available on this device?

The NAFE13188B40BSE features ten general-purpose digital input/output pins (GPIO0-GPIO9) for monitoring and control functions.