NAFE13388B40BSK

Analog Front End (AFE) Overview

The NAFE13388B40BSK is an industrial-grade analog front-end (AFE) featuring eight configurable high-voltage inputs and a 24-bit sigma-delta ADC. It integrates low-leakage multiplexers, programmable gain amplifiers with gains from x0.2 to x16, and precise voltage/current excitation sources. The device supports ±25 V input ranges with ±36 V overvoltage protection. Key specifications include 0.005%FS accuracy at room temperature after user calibration, 288 kSPS data rates, and integrated diagnostic circuits for fault detection.

Analog Front End (AFE) Feature Summary

• Eight configurable HV inputs supporting single-ended or differential modes up to ±25 V
• 24-bit resolution with ENOB of 17 bits at 72 kSPS
• Integrated precise voltage and current excitation sources for RTD and sensor biasing
• Factory-calibrated coefficients for end-to-end system self-calibration

Analog Front End (AFE) Applications

• Programmable Logic Controller (PLC) I/O modules
• Industrial data acquisition systems
• Process control instrumentation

Analog Front End (AFE) Procurement Notes

Verify the ordering suffix 'K' corresponds to the specific tray packing configuration (5+1 Tray) as defined in the manufacturer's ordering information table. Confirm that the factory-calibrated variant matches the application's precision requirements compared to non-calibrated family members.

Analog Front End (AFE) Selection Notes

Select this part for applications requiring high channel count and 24-bit resolution with factory calibration. Ensure the host processor supports the 32 MHz SPI interface. Verify power supply constraints align with the specified HV range of ±7 V to ±24 V and LV of 3.3 V.

Analog Front End (AFE) Part Context

This component belongs to the NAFEx1388 family, which includes variants with different channel counts (4 or 8), resolutions (16 or 24 bits), and speed/power profiles. The NAFE13388 serves as the superset representative for the 8-channel, 24-bit, low-power, factory-calibrated configuration within this series.

Analog Front End (AFE) Replacement Considerations

NAFE13188B40BSK: Identical pinout and functionality but lacks factory calibration coefficients.