NXP Semiconductors NAFEB43388B40
Universal ±25 V 8-Input low-power AFE with integrated DAC and sense resistor with protection switch
The NAFEB43388 is a highly configurable, industrial-grade, multichannel universal input Analog Front-End (AFE) that meets high-precision measurement requirements. The device integrates a high data rate, 24-bit sigma-delta Analog-to-Digital Converter (ADC), a precision 13-bit Digital-to-Analog Converter (DAC), lowleakage, High-Voltage (HV) fast multiplexers, a low-offset and low-drift Programmable Gain Amplifier (PGA), and a low-drift voltage reference. In addition, the NAFEB43388 includes one high-precision sense resistor protected by a smart and robust e-fuse active circuit. All of the HV analog pins are diode-protected internally for Electromagnetic Compatibility (EMC) and miswiring scenarios. The NAFEB43388 is equipped with various diagnostic and supplies supervisory circuitry for condition monitoring and anomaly detection. The NAFEB43388 family of products is designed for Programmable Logic Controllers (PLCs), Distributed Control Systems (DCS), I/O modules, data loggers, instrumentation, and high-precision sensor and data acquisition systems.
Key features
- 24 bits Sigma Delta ADC
- 13 bits DAC
- 8 Analog Inputs
- 4-20mA current input with integrated shunt resistor
- ADC data rate: 7.5 sps to 288 ksps
- ±36 V protected I/O
- Voltage, current, resistance, Resistance Temperature Detector (RTD), and TC
Applications
- PLC
- Remote I/O
- RTD (Pt100, Pt1000, NTC10k, Ni100, Ni1000, CU247)
- Thermocouple
- Load Cell
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