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Sensor AFE Revolutionizes Sensor System Design
National's configurable Sensor AFE ICs and WEBENCH® Sensor AFE Designer are part of an integrated hardware and software development platform to simplify sensor system design by enabling the engineer to select a sensor, design and configure the solution, and download configuration in minutes. The development systems allows engineers to evaluate the complete signal path solution (including sensors) either online or on the bench.
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Sensor AFE Overview
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New! National Expands Sensor AFE Family
Seven Options for Channel Configurations, Current Source, and Resolution
- 24-bit or 16-bit sigma-delta ADC with a programmable input (mux)
- Up to 4-differential inputs, or 7-single-ended inputs in any combination of input types
- True background calibration eliminates offset and gain drift over time and temperature without disturbing the measured signal
- Each channel is independently configurable for gain and sample rate
- Automatic, manual, and single scan of selected channels
- Continuous background sensor diagnostics for detecting shorts, opens and out-of-range signals
- -40‘C to 125‘C temperature range
- Supported by Sensor AFE hardware & software development platform
- Get product info...
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Product Info
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Design Resources
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Dual RTD Application Comparison: Sensor AFE Versus Discrete Design
| Parameter |
LMP90100 Integrated Sensor AFE |
Discrete Solution |
| ADC |
LMP90100 |
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| Pressure Sensor Op Amps |
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| RTD Op Amps |
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| RTD Current Sources |
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| Total Cost (1kpcs) |
$4.95 |
$6.50 |
| Resolution |
24-bit, 7-Channel |
10-bit, 2-Channel |
| Integrated |
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| Software Reconfigurable |
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| True Continuous Background Calibration |
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| Simplified Stocking |
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| Quick Design & Evaluation |
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Typical Sensor AFE Applications
- Load cells
- Differential pressure transducers
- Force sensors
- Hall effect sensors
- Level sensors
- Load cells
- MEMS sensors
- Oil pressure sensors
- Pressure gauges, pressure switches, pressure transducers
- Strain gauge
- Weighing sensors
- Wheatstone bridge sensors
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- Chemical sensors
- Gas detector systems
- Carbon dioxide (CO2) detectors
- Carbon monoxide (CO) detectors
- Gas analyzers, gas detectors, gas monitors, gas sensors
- H2S gas detectors
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- Digital thermometers
- Type k thermocouples
- Resistance Temperature Resistance (RTDs)
- Temperature probes
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