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Digital Humidity and Temperature Sensor - SHTC1

Interface: I2C
Supply voltage: 1.8 V
Power consumption: 2μW (at 1 reading per second in low power mode)
Measuring range (RH): 0 - 100% relative humidity
Measuring range (T): -30 to +100°C (-22 to +212°F)
Response time (RH): 8s (tau63%)

Model Number: SHTC1
Data Sheet:

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Product Specification

SHTC1 Digital Humidity and Temperature Sensor Product Summary
The SHTC1 is a digital humidity and temperature sensor designed especially for high-volume consumer electronics applications. This sensor is strictly designed to overcome conventional limits for size, power consumption, and performance to price ratio in order to fulfill current and future requirements. Sensirion’s CMOSens ? technology offers a complete sensor system on a single chip, consisting of a capacitive humidity sensor, a bandgap temperature sensor, analog and digital signal processing, A/D converter, calibration data memory, and a digital communication interface supporting I2C fast mode. The ultra-small, 2 × 2 × 0.75 mm 3 DFN package enables applications in even the most limited of spaces.

The sensor covers a humidity measurement range of 0 to 100 %RH and a temperature measurement range of –30 to 100 °C with a typical accuracy of ±3 %RH and ±0.3°C. The operation voltage of 1.8 V and an energy budget below 1 μJ per measurement make the SHTC1 suitable for mobile or wireless applications running on the tightest power budgets. With the industry-proven quality and reliability of Sensirion’s humidity and temperature sensors and constant accuracy over a large measurement range, the SHTC1 offers an unprecedented performance-to-price ratio. Tape and reel packaging together with suitability for standard SMD assembly processes make the SHTC1 predestined for high-volume applications.

SHTC1 Digital Humidity and Temperature Sensor FEATURES
? Best performance-to-price ratio
? Fully calibrated and reflow solderable
? Ultra-low power consumption
? Power-up and measurement within 1 ms
? 1.8 V supply voltage
? Ultra-small DFN package: 2 × 2 × 0.75 mm3
? Typical accuracy: ±3 %RH and ±0.3 °C

SHTC1 Digital Humidity and Temperature Sensor Specifications
Relative Humidity

Parameter	Conditions	Value	Units
Accuracy tolerance	Typ.	±3.0	%RH
Accuracy tolerance	Max.	see Figure 2	%RH
Repeatability	-	0.1	%RH
Resolution	-	0.01	%RH
Hysteresis	-	±1	%RH
Specified range	extended	0 to 100	%RH
Response time	τ63%	8	s
Long-term drift	Typ.	<0.25	%RH/y

Temperature

Parameter	Conditions	Value	Units
Accuracy tolerance	Typ.	±0.3	°C
Accuracy tolerance	Max.	see Figure 3	°C
Repeatability	-	0.1	°C
Resolution	-	0.01	°C
Specified range	-	-30 to +100	°C
Response time	τ63%	<5 to 30	s
Long-term drift	Normal range	<0.02	°C/y

Other Series:

Series	Typ. Humidity Accuracy %RH	Typ. Temperature Accuracy °C	Supply Voltage Range V	Interface	Package Size (L x W x H) mm
SHT30	±2	±0.2	2.4 to 5.5	I2C, analog voltage	2.5 x 2.5 x 0.9
SHT31	±2	±0.2	2.4 to 5.5	I2C, analog voltage	2.5 x 2.5 x 0.9
SHT35	±1.5	±0.1	2.4 to 5.5	I2C	2.5 x 2.5 x 0.9
SHTW1	±3	±0.4	1.62 to 1.98	I2C	1.3 x 0.7 x 0.5
SHTW2	±3	±0.4	1.62 to 1.98	I2C	1.3 x 0.7 x 0.5
SHTC1	±3	±0.3	1.62 to 1.98	I2C	2 x 2 x 0.8
SHT20	±3	±0.3	2.1 to 3.6	I2C, PWM, SDM	3 x 3 x 1.1
SHT21	±2	±0.3	2.1 to 3.6	I2C, PWM, SDM	3 x 3 x 1.1
SHT25	±1.8	±0.2	2.1 to 3.6	I2C	3 x 3 x 1.1
SHT10*	±4.5	±0.5	2.4 to 5.5	Digital Sbus	7.5 x 4.9 x 2.6
SHT11*	±3	±0.4	2.4 to 5.5	Digital Sbus	7.5 x 4.9 x 2.6
SHT15*	±2	±0.3	2.4 to 5.5	Digital Sbus	7.5 x 4.9 x 2.6
SHT71	±3	±0.4	2.4 to 5.5	Digital Sbus	19.5 x 5.08 x 3.1
SHT75	±1.8	±0.3	2.4 to 5.5	Digital Sbus	19.5 x 5.08 x 3.1
*Not recommended for new design (NRND); newer products available