Press release
HTU3500 and HTU3800: Analog or Digital Humidity and Temperature Measurement
HTU3500 / HTU3800 Humidity/Temperature Sensor Module ( (C) AMSYS GmbH & Co. KG)
The main difference lies in the signal output: the HTU3500 operates with analog outputs, while the HTU3800 transmits humidity and temperature digitally via an I2C interface. Both series require no external components, are available for 3 V or 5 V supply, and cover a humidity range from 0 to 100% RH. The modules are factory calibrated and interchangeable under standard conditions without recalibration.
Analog or Digital - Matching the System Architecture
The HTU3500 provides relative humidity as an analog voltage signal. Temperature is measured via an NTC with a nominal resistance of 10 kO at 25?C. This makes the series particularly suitable for systems with existing analog inputs.
The HTU3800 transmits both measured values digitally via I2C. Resolution can be configured up to 12 bit for humidity and 14 bit for temperature. A CRC checksum supports detection of transmission errors; additional functions include low-battery detection and an integrated heater for diagnostic purposes.
An optional PTFE filter membrane is available for both series to protect against dust, water, and particles. Versions for direct PCB mounting and with lead wires simplify integration into different OEM systems.
AMSYS supports customers in selecting between the analog and digital versions as well as the appropriate supply voltage, connection option, and filter configuration.
Outstanding Features
o Measured variables: Relative humidity and temperature
o Humidity measurement range: 0 to 100% RH
o Two interface options:
- HTU3500: analog voltage signal for humidity, NTC for temperature
- HTU3800: digital I2C output for humidity and temperature
o Supply voltage: 3 V or 5 V
o Factory-calibrated and interchangeable under standard conditions
o HTU3800 with adjustable resolution up to 12 bits for RH / 14 bits for temperature
o Optional PTFE filter for protection against dust, water, and particles
o Variants for direct PCB mounting or with connecting leads
o Suitable for compact OEM applications requiring minimal integration effort
AMSYS GmbH & Co. KG
An der Fahrt 4
55124 Mainz
Germany
https://www.amsys-sensor.com
Herr V. Fruci
info@amsys.de
AMSYS GmbH & Co. KG is a German company specializing in sensor technology, particularly pressure measurement. Its product range includes pressure sensors from 1.25 mbar to 800 bar, humidity, temperature, and tilt sensors, as well as wireless solutions. In addition to standard products, AMSYS offers customizations. Learn more at www.amsys.de.
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