Sensors & ADC Formulas
Sensor and ADC formulas connect resolution, reference voltage, and sampling to real-world measurement accuracy. These calculators help you choose converters and scale signals into their full range. They are essential for data acquisition and instrumentation.
Sensors & ADC Formula Calculators
- ADC Resolution (LSB) LSB = Vref / 2^N
- ADC Theoretical SNR SNR = 6.02 × N + 1.76 dB
- Steinhart-Hart Temperature 1/T = A + B×ln(R) + C×(ln(R))³
- Wheatstone Bridge Vout = Vin × (R3/(R3+R4) − R2/(R1+R2))
- Linear Sensor Transfer Function Vout = S × value + offset
- Oversampling SNR Improvement SNR_eff = SNR + 10 × log10(N)
- RTD Callendar-Van Dusen R(T) = R0 × (1 + A×T + B×T²)
- Strain Gauge Resistance Change ΔR = R × GF × ε
- Hall Effect Voltage Vh = Rh × I × B / t
- NTC Thermistor Divider Vout = Vcc × Rntc / (Rntc + Rfixed)
- Capacitive Sensor Change ΔC = ε0 × A / d
- Photodiode Current Iph = S × E × A
- Thermocouple Seebeck Voltage V = S × ΔT
- Current Shunt Measurement I = Vshunt / Rshunt
- Ultrasonic Distance Measurement d = v × t / 2
- Optical Encoder Speed n = (count / PPR) × 60 / t
- ADC SNR Limited by Clock Jitter SNR = −20 · log10(2π · f · tj)
- ADC Quantization Noise Voltage e = (FS / 2ᴺ) / √12
- Voltage Reference Drift Error error(ppm) = TC · ΔT
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