NAFE13188B40BSK

Analog Front End (AFE) Overview

The NAFE13188B40BSK is a highly configurable industrial-grade analog front-end (AFE) featuring eight universal high-voltage inputs and a 24-bit sigma-delta ADC. It supports data rates from 7.5 SPS to 288 kSPS with simultaneous 50/60 Hz line rejection. The device integrates low-leakage multiplexers, programmable gain amplifiers (x0.2 to x16), precise voltage/current excitation sources, and internal temperature sensing. Operating on ±7 V to ±24 V HV supplies and 3.3 V LV supplies, it provides ±25 V input ranges with overvoltage protection up to ±36 V. Packaged in a 64-pin HVQFN, it lacks factory calibration but includes diagnostic supervisory circuits for anomaly detection.

Analog Front End (AFE) Feature Summary

• Eight configurable high-voltage inputs supporting single-ended or differential modes with ranges up to ±25 V
• 24-bit sigma-delta ADC with selectable data rates from 7.5 SPS to 288 kSPS
• Integrated precision voltage and current excitation sources for sensor interfacing
• Robust protection including 7.5 kV HBM ESD and IEC61000-4-5 2 kV surge capability

Analog Front End (AFE) Applications

• Programmable logic controllers (PLCs)
• Industrial data acquisition systems
• Process control I/O modules

Analog Front End (AFE) Procurement Notes

Verify the specific ordering suffix 'K' against the manufacturer's documentation to confirm tray packaging specifications and minimum order quantities. Ensure the absence of factory calibration coefficients matches the system design requirements, as this variant requires user calibration for optimal accuracy.

Analog Front End (AFE) Selection Notes

Select this part when eight universal channels are required without the need for pre-calibrated factory coefficients. Verify that the ±7 V to ±24 V high-voltage supply range aligns with the target application's power architecture. Confirm that the lack of integrated excitation source control differences does not impact the specific sensor interface needs compared to superset variants.

Analog Front End (AFE) Part Context

This component belongs to the NAFE13388 family, where the NAFE13388 serves as the representative superset part number. The NAFE13188 variant specifically denotes an 8-channel, 24-bit resolution device operating in low-power mode without factory calibration. It shares pinout and software compatibility with other family members like the NAFE13388 and NAFE73388.

Analog Front End (AFE) Replacement Considerations

NAFE13388B40BS: Includes factory calibration coefficients; otherwise identical electrical characteristics and pinout.