NAFE11388B40BSK

Analog Front End (AFE) Overview

The NAFE11388B40BSK is a highly configurable industrial-grade multichannel universal input analog front-end (AFE) designed for high-precision measurement applications. It integrates low-leakage high-voltage fast multiplexers, low-offset programmable gain amplifiers, and a 24-bit Delta-Sigma ADC. The device supports eight configurable HV inputs with ranges up to ±25 V and overvoltage protection up to ±36 V. Key electrical parameters include a data rate range of 7.5 SPS to 288 kSPS, ENOB of 17 bits at 72 kSPS, and system accuracy of 0.005% FS after user calibration at room temperature. It operates within a temperature range of -40 °C to +125 °C.

Analog Front End (AFE) Feature Summary

• Eight configurable HV inputs supporting single-ended or differential signals up to ±25 V
• High precision with 0.005% FS accuracy at room temperature and 0.1% FS across the operating temperature range
• Fast data acquisition with rates from 7.5 SPS to 288 kSPS and simultaneous 50 Hz/60 Hz line rejection
• Integrated diagnostic system including CRC error detection, fault prediction, and precise internal calibration voltage sources

Analog Front End (AFE) Applications

• Data acquisition systems
• Programmable Logic Controller (PLC) I/O modules
• Industrial automation and process control

Analog Front End (AFE) Procurement Notes

Verify that the ordering suffix 'K' corresponds to the specific tray packing method described in the official datasheet. Confirm the package type is HVQFN64 and the thermal-enhanced plastic construction matches the design requirements. Ensure the component meets the specified RoHS compliance standards before integration into production.

Analog Front End (AFE) Selection Notes

Select this part for applications requiring high-precision analog signal conditioning with multiple input channels. The NAFE11388 is suitable for designs needing end-to-end system self-calibration via integrated voltage sources. Consider the 125 mW power consumption and the 32 MHz SPI interface speed when designing the host processor communication layer.

Analog Front End (AFE) Part Context

This component belongs to the NAFE family of analog front-ends optimized for power and speed. It is pin-to-pin and software-compatible with other members like the NAFE71388 and NAFE11348, facilitating scalable development across different performance tiers while maintaining hardware reuse.

Analog Front End (AFE) Replacement Considerations

The NAFE11388 is pin-to-pin compatible with the NAFE71388 and NAFE11348. Substitution requires verifying that the target application's requirements for data rate and resolution align with the specific characteristics of the replacement device.