High-Resolution: Low-Drift: Precision Weigh-Scale Reference Design with AC Bridge Excitation
Description
This precision weigh-scale reference design achieves greater than 50:000 noise-free counts of resolution. Offset and offset drift errors are nearly eliminated by ac bridge excitation. This design takes advantage of the high-resolution ADS1262 delta-sigma ADC.
Features
- >50:000 noise-free count weigh-scale solution Operating temperature range: -40 ᵒC to +125 ᵒC Less than 1 μV total error across temperature range ADC Supply and Bridge Excitation Voltage: 5V Bridge Output: 0 V to 10 mV Firmware provides ADS1262 example code This robust circuit reference design includes theory: complete error analysis: component selection: simulation: PCB design: example code: and measured data that correlates with the theory and simulation.
Applications
- Spectrometer
- CT & PET scanner
- Weigh scale
- X-ray systems
- Mobile robot motor control
Product Categories
- Data converters
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| Download the bill of materials for TIPD188 | Download |
Test Data
Get results faster with test and simulation data that's been verified.
Download the test file for TIPD188| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIPD188 BOM | 20 Jul 2015 | 193 | ||
| TIPD188 Schematic | 20 Jul 2015 | 176 |