Hardware
1 hardware offering
-
Evaluation and Development BoardsNAFExx388-EVB 8 Channels Universal Input AFE Evaluation Board
Highly Configurable 8 Channel ±25 V Universal Input Analog Front-End with Excitation Sources
NAFEx3388 Receive alerts
The NAFE13388 / NAFE73388 / NAFE13188 is a highly configurable industrial-grade multichannel universal input analog front-end (AFE) that meets high-precision measurement requirements. The device integrates low-leakage, high-voltage (HV) fast multiplexers, low-offset and low drift programmable gain amplifier (PGA) and buffers, high data rate 24-bit delta-sigma analog-to-digital converter (ADC), precise voltage and current excitation source, and low-drift voltage reference. All of the HV analog pins are diode-protected internally for electromagnetic compatibility (EMC) and miswiring scenarios. The NAFE13388 / NAFE73388 / NAFE13188 are 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.
The NAFE13388 / NAFE13188 are dedicated to low-power applications with factory and non-factory calibration option respectively. The NAFE73388 supports high-speed data rate up to 576 kSPS.
The NAFE13388, NAFE73388 and NAFE13188 are designed for programmable logic controllers (PLC), I/O modules, data loggers, instrumentation and high precision sensor and data acquisition systems.
Product Details
Block Diagram
Features
Eight Configurable HV Inputs
- Single-ended or differential, with ranges up to ±25 V
- Independent configurations for voltage and current ranges
- Overvoltage protected up to ±36 V for less than one hour
Programmable Gain
- x0.2 to x16
Fast Data Rates
- NAFE13388 / NAFE13188: 7.5 SPS to 288 kSPS
- NAFE73388: 15 SPS to 576 kSPS
- Simultaneous 50 Hz/60 Hz line rejection
- ENOB:
- NAFE13388 / NAFE13188: 17-bit at 72 kSPS / 24-bit at 30 SPS
- NAFE73388: 17-bit at 144 kSPS / 24-bit at 50 SPS
High Accuracy
- 0.005 % FS accuracy at room after user calibration
- 0.1 % FS accuracy over -25 ⁰C to 105 ⁰C
System Calibration
- NAFE13388/ NAFE73388: factory calibrated
- NAFE13188: non factory calibrated
Key Features
- ±3 ⁰C Internal temperature sensor
- Precise excitation voltage and current sources
- 0.2% Internal oscillator accuracy at room temperature
- Diagnostic system for faults detection and prediction
- CRC error detection
- Ten GPIOs
- 32 MHz SPI interface
- Robust 8 kV HBM ESD and IEC61000-4-5 2 kV surge protection
- Power supply: HV: ±7 V to ±24 V, LV: 3.3 V
- Power consumption: 150 mW for low power version and 160 mW for the high speed
- Operating temperature range TA: -40 ⁰C to +125 ⁰C
- Package: 64 pin, 9 mm x 9 mm x 0.85 mm HVQFN
Product Longevity Program
- These products are included in the NXP Product Longevity program ensuring a stable supply of products for 15 years for your embedded designs.