SHT71 Datasheet | Sensirion

features a version 4 Silicon sensor chip. Besides a humidity and a temperature sensor the chip contains an amplifier, A/D converter, OTP memory and a digital interface. V4 sensors can be identified by the alpha-numeric traceability code on the sensor cap - see example “B2G” code on Figure 1. Material Contents While the sensor is made of a CMOS chip the sensor housing consists of an LCP cap with epoxy glob top on an FR4 substrate. Pins are made of a Cu/Be alloy coated with Ni and Au. The device is fully Ro HS and WEEE pliant, thus it is free of Pb, Cd, Hg, Cr(6+), PBB and PBDE. Evaluation Kits 19.5 3.7 1.2 Ø 0.4 B2G 1 2 3 4 0.46 5.08 0.2 2.0 Figure 1: Drawing of SHT7x (applies to SHT71 and SHT75) sensor packaging, dimensions in mm (1mm = 0.039inch). Contact assignment: 1: SCK, 2: VDD, 3: GND, 4: DATA. Hatched item on backside of PCB is a 100n F capacitor - see Section 2.1 for more information. For sensor trial measurements, for qualification of the sensor or even experimental application (data logging) of the sensor there is an evaluation kit EK-H4 available including SHT71 (same sensor chip as SHT1x) and 4 sensor channels, hard and software to interface with a puter. For other evaluation kits please check .sensirion./humidity. .sensirion. Version 5 - December 2011 1/12 Datasheet SHT7x Sensor Performance Relative...