General description
NAFE11388 is a highly configurable industrial grade multi-channel universal input Analog
Front-End (AFE) that meets high-precision measurement requirements. The device
integrates low-leakage high-voltage fast multiplexers, low offset and low drift PGA and
buffers, a precision and high data rate 24-bit Delta Sigma ADC and a low-drift voltage
reference. The analog high voltage (HV) input pins are diode-protected internally for EMC and wire misuse scenarios; NAFE11388 is equipped with diagnostic circuits for functional safety, condition monitoring and fault detection. Two precise voltage sources are made available for end-to-end system self-calibration and anomaly detection for predictive maintenance. NAFE11388 is designed to be used in programmable logic controllers (PLC), I/O modules, data loggers, instrumentation, high precision sensors and data acquisition systems.

Features and benefits
• 8 configurable HV inputs
– Single-ended or differential with ranges up to ±25 V
– Configurable for voltage, current, resistance, RTD, thermocouples
– Overvoltage protection up to ±36 V
• Fast data rates
– 7.5 SPS to 288 kSPS
• Diagnostic system for fault detection and prediction
• CRC error detection
• Operating temperature range: -40 ℃ to +125 ℃
• Package: 64 pin, 9 mm × 9 mm × 0.85 mm VQFN

Applications
• Data acquisition systems
• PLC, DCS I/O modules
• Industrial automation and process control