NAFE11388B40BSMP

Analog Front End (AFE) Overview

The NAFE11388B40BSMP is a highly configurable industrial-grade analog front-end (AFE) featuring eight universal high-voltage inputs. It integrates low-leakage multiplexers, programmable gain amplifiers with gains of 0.2 to 0.8 V/V, and a 24-bit Delta-Sigma ADC. The device supports data rates from 7.5 SPS to 288 kSPS, achieving an ENOB of 17 bits at 72 kSPS. It provides ±25 V input ranges with ±36 V overvoltage protection. Key features include integrated precise calibration voltage sources for end-to-end system self-calibration, a ±3 °C internal temperature sensor, and robust diagnostic capabilities. Power consumption is rated at 125 mW, operating within a -40 °C to +125 °C range in a 64-pin HVQFN package.

Analog Front End (AFE) Feature Summary

• Eight configurable HV 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 precise calibration voltage sources 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 controllers (PLCs)
• Industrial I/O modules
• Data acquisition systems
• High-precision sensor interfaces

Analog Front End (AFE) Procurement Notes

Verify the ordering suffix 'MP' indicates reel packing on a 13-inch Q2/T1 carrier. Confirm the standard mark includes an SMD dry pack for moisture sensitivity management. Ensure the specified temperature range of TA = -40 °C to +125 °C aligns with the application environment requirements before finalizing procurement.

Analog Front End (AFE) Selection Notes

Select this part for applications requiring low power consumption alongside high precision. The NAFE11388 offers 24-bit resolution, whereas the NAFE11348 variant provides 16-bit resolution. Both share pin compatibility. Consider the Single-Cycle Settling mode for multi-channel scanning efficiency or Normal Settling mode for lower noise in single-channel applications.

Analog Front End (AFE) Part Context

This component belongs to the NXP NAFE family of analog front-ends, optimized for industrial automation. The family includes variants like the NAFE71388 for high-speed operations up to 576 kSPS. The NAFE11388 specifically targets low-power scenarios while maintaining high accuracy through integrated digital calibration coefficients and factory-trimmed references.

Analog Front End (AFE) Replacement Considerations

The NAFE11348B40BSMP serves as a compatible alternative within the same package if 16-bit resolution is sufficient. The NAFE11148B40BSMP is another option but lacks factory calibration coefficients. All family members are pin-to-pin and software-compatible.