G-NICO-023

G-NICO-023 is a single-chip, versatile, new technology digital temperature sensor. It provides factory-calibrated temperature information. It includes a temperature sensing chip and a 24 bit ΔΣ-ADC. The essence of the digital 24 bit temperature value and the internal factory set calibration values lead to highly accurate temperature information accompanied by high measurement resolution. It can be interfaced to any microcontroller by an I²C or SPI interface. This microcontroller has to calculate the temperature result based on the ADC values and the calibration parameters. The basic working principle includes converting temperature into digital 16/24 bit ADC value, providing calibration coefficients, providing ADC value and calibration coefficients by SPI or I2C interface. The application includes industrial control, replacement of thermistors and NTCs, heating/cooling systems, and HVAC.

• High accuracy temperature sensor, 16/24 bit resolution, low power
• High accuracy is ±0.1°C (-20 to +70°C), low current is <lt/>12.5μA max (standby <lt/> 0.14μA) max (T = 85°C)
• Operating supply voltage range from 2.2 to 3.6V (stabilized)
• Peak supply current is 1.4mA typ (during conversion)
• Conversion time range from 7.40 to 9.04ms, serial data clock SPI is 20MHz max
• Serial data clock I²C is 400KHz max, 100nF VDD capacitor
• Power supply reject ratio is 0.2°C max (3.3V, VDD = 2.7 – 3.6 T = 25°C, C = 100nF)
• Typical output word is 24bit, self heating is 0.02°C max (10 samples/s, 60s, still air)
• ESD rating -4 to +4kV (Human Body Model (HBM) pin to pin incl. VDD and GND)
• QFN16 package, operating temperature range from -40°C to +125°C