NAFE11388B40BSE

NAFE11388B40BSE is a highly configurable industrial-grade 8-channel universal input analogue front-end (AFE) family that meets high-precision measurement requirements. The device integrates low-leakage high-voltage fast multiplexers, low offset and low drift PGA and buffers, precision and high data-rate 24-bit delta-sigma ADC, and a low-drift voltage reference. The analogue high voltage (HV) input pins are diode-protected internally for EMC and miswiring scenarios. This device is equipped with various diagnostic and supplies supervisory circuitry for condition monitoring and anomaly detection. Two precise calibration voltage sources are made available for ease of end-to-end system self-calibration and predictive maintenance. This is dedicated to low-power applications while the NAFE71388 supports high-speed data rates up to 576KSPS. This is designed for programmable logic controllers (PLC), I/O modules, data loggers, instrumentation, and high-precision sensor and data acquisition systems.

• Eight configurable HV inputs, single-ended or differential, with ranges up to ±25V
• Independent configurations for voltage and current ranges, high speed
• Fast data rates, 7.5 SPS to 288KSPS, simultaneous 50Hz/60Hz line rejection
• High accuracy, 0.005%FS accuracy at room after user calibration, low power
• End-to-end calibration with integrated precise voltage sources
• CRC error detection, ±3°C internal temperature sensor, factory calibrated
• 0.2% internal oscillator accuracy at room temperature, 24bit resolution
• Diagnostic system for faults detection and prediction, ten GPIOs, 32MHz SPI interface
• HV: ±7V to ±24V, LV: 3.3V power supply, 125mW low power consumption
• HVQFN64 package, operating temperature range from -40°C to +125°C