DS1859 dual-channel, temperature-controlled resistor, built-in calibration monitor

DS1859 dual-channel, temperature-controlled resistor, built-in calibration monitor

DS1859 overview

The DS1859 dual, temperature-controlled, non-volatile (NV) resistor has three monitors, including two 50kΩ or two 20kΩ, 256-level, linear variable resistors, and three analog monitor inputs (MON1, MON2, MON3 ) And direct digital temperature sensor. This device can set the bias voltage and current and temperature compensation, is very suitable for control applications that require small circuit size. The variable resistor settings are stored in EEPROM memory and can be accessed via a 2-wire serial bus.

DS1859 pdf datasheet (Dual, Temperature-Controlled Resistors)

DS1859 key features

SFF-8472 is compatible with 5 monitoring channels (temperature, VCC, MON1, MON2, MON3), 3 external analog inputs (MON1, MON2, MON3), supports internal and external calibration. The external analog input dynamic range can extend the internal direct digital conversion temperature Each monitoring channel of the sensor has alarm and warning signs. Two 50kΩ or two 20kΩ, 256-level, non-volatile temperature-controlled variable resistance settings can be changed every 2 ° C. Accessible monitoring and ID information can be changed, with independent device addresses 2 buffers with 2-wire serial interface, with TTL / CMOS compatible input and open-drain output. Use 3.3V to 5V power supply. Operating temperature range: -40 ° C to + 95 ° C