WLCSP Digital Humidity and Temperature Sensor - SHTW1

? Ultra-small WLCSP: 1.3 × 0.7 × 0.5 mm3
? Fully calibrated and reflow solderable
? Ultra-low power consumption
? Power-up and measurement within 1 ms
? 1.8 V supply voltage
? Typical accuracy: ±3 %RH and ±0.4 °C

  • Model Number: SHTW1
  • Data Sheet: Date Sheet File
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  • WLCSP Digital Humidity and Temperature Sensor
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Product Specification

SHTW1 Digital Humidity and Temperature Sensor Product Summary
The SHTW1 is a digital humidity and temperature sensor in a wafer-level chip-scale package (WLCSP). This type of package opens up a new category of ultra-small humidity sensors which are suitable for applications with the tightest space constraints. The SHTW1 is designed especially  for  high-volume  consumer  electronics applications. The sensor is based on Sensirion’s CMOSens ? technology, which 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 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 ±0.4°C. The operation voltage of 1.8 V and the low power consumption make the SHTW1 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 SHTW1 offers an unprecedented performance-to-price ratio. Tape and reel packaging together with suitability for standard SMD assembly processes make the SHTW1 predestined for high-volume applications.

SHTW1 Digital Humidity and Temperature Sensor FEATURES
? Ultra-small WLCSP: 1.3 × 0.7 × 0.5 mm3
? Fully calibrated and reflow solderable
? Ultra-low power consumption
? Power-up and measurement within 1 ms
? 1.8 V supply voltage
? Typical accuracy: ±3 %RH and ±0.4 °C

SHTW1 Digital Humidity and Temperature Sensor Specifications
Relative Humidity

Parameter
Conditions
Value
Units
Accuracy tolerance
Typ.
±3.0
%RH
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.
±0.4
°C
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


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