NAFE11348B40BSMP

Analog Front End (AFE) Overview

The NAFE11348B40BSMP is an industrial-grade, highly configurable analog front-end (AFE) featuring eight universal high-voltage inputs. It integrates low-leakage multiplexers, a programmable gain amplifier with gains of 0.2 to 0.8 V/V, and a 16-bit Delta-Sigma ADC. The device supports data rates from 7.5 SPS to 288 kSPS with simultaneous 50 Hz/60 Hz line rejection. It provides ±25 V input ranges, overvoltage protection up to ±36 V, and robust diagnostic capabilities including CRC error detection and internal temperature sensing. Designed for precision measurement in harsh environments, it operates between -40 °C and +125 °C.

Analog Front End (AFE) Feature Summary

• Eight configurable HV inputs supporting single-ended or differential signals up to ±25 V
• 16-bit resolution with data rates ranging from 7.5 SPS to 288 kSPS
• Integrated precise voltage sources (REFH/REFL) for end-to-end system self-calibration
• Robust protection including ±36 V overvoltage tolerance and 7.5 kV HBM ESD

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 specific ordering suffix B40BSMP against the manufacturer's current documentation to confirm packaging details and availability status. Ensure compatibility with the host processor's SPI interface requirements before procurement.

Analog Front End (AFE) Selection Notes

Select this model when a 16-bit resolution is sufficient for the application, offering lower power consumption compared to the 24-bit NAFE11388 variant. Confirm that the required data rate does not exceed 288 kSPS and that the system can utilize the integrated calibration sources for accuracy maintenance.

Analog Front End (AFE) Part Context

This component belongs to the NXP NAFE family of universal input analog front-ends. It shares pinout and software compatibility with other family members like the NAFE11388 and NAFE71388, allowing for scalable design across different performance tiers while maintaining hardware reuse.

Analog Front End (AFE) Replacement Considerations

The NAFE11388B40BSMP serves as a direct functional replacement if higher 24-bit resolution is acceptable. Verify that the increased resolution and potential power differences do not impact the existing thermal or power budget constraints.