Thermometer With A/D Converters TRIZ Cases
- Nonlinear Converter Circuit for Temperature Sensor Linearization
A segmented resistor divider with multiplexer switching linearizes nonlinear temperature sensor output while limiting area and power.
- Temperature Sensor A/D Conversion Using Ratio-Based Reference Compensation
A ratio of temperature-linked input and inverse reference voltages improves sensor accuracy while keeping A/D readout compatible with multi-sensor systems.
- A/D Converter Timing Split for Fast, Accurate Oscillator Sensing
Different MSB and LSB determination periods speed A/D conversion while preserving accuracy for stable temperature-compensated oscillators.
- Hybrid Thermal Sensor Trimming for MOSFET SF Variation
Single-temperature trimming uses PTAT and CTAT currents with BIST to offset MOSFET subthreshold factor variation and improve sensor accuracy.
- Non-Linear Converter Circuit for Linear Diode Temperature Output
A resistor ladder, analog multiplexer, and comparator convert non-linear diode voltages into a linear temperature word for accurate IC sensing.
- Semiconductor Temperature Sensing via Time-Division Frequency Conversion
Time-division voltage-frequency conversion measures chip temperature precisely with one converter, reducing sensor area and ADC complexity.
- Temperature Sensor Circuit Using Time-Division Counting for Precision
Time-division counting converts temperature-dependent voltages into precise digital readings while keeping the sensor area compact.
- Semiconductor IC Lifetime Prediction by Cumulative Heat Exposure
Cumulative high-temperature time stored in on-chip non-volatile memory lets the IC predict wear-out and warn before failure.
- Capacitor-Referenced Temperature Sensing With Low-Noise Sigma-Delta Readout
A switched-capacitor reference and Sigma-Delta readout cut 1/f noise, area, and power in MEMS temperature sensing.
- Remote-Junction Temperature Sensing With Resistance and Offset Cancellation
A delta-sigma current-sequencing scheme cancels series resistance and offset errors in remote BJT temperature sensing while cutting area and power.
- ADC Reference Circuit for Calibration-Free Thermistor Measurement
A supply-based ADC reference enables ratiometric thermistor measurement, canceling voltage variation errors without calibration.
- Switched-Capacitor Thermistor Sensing for Low-Noise High-Rate Readout
A switched-capacitor thermistor readout uses Sigma-Delta modulation and chopping to keep high-rate temperature sensing low noise and low power.