DS1856E-030+T&R

General Description
The DS1856 dual, temperature-controlled, nonvolatile (NV) variable resistors with three monitors consists of two 256-position, linear, variable resistors; three analog monitor inputs (MON1, MON2, MON3); and a direct-to digital temperature sensor.
The device provides an ideal method for setting and temperature-compensating bias voltages and currents in control applications using minimal circuitry.
The variable resistor settings are stored in EEPROM memory and can be accessed over the 2-wire serial bus.
Features
♦SFF-8472 Compatible
♦Five Monitored Channels (Temperature, VCC, MON1, MON2, MON3)
♦Three External Analog Inputs (MON1, MON2, MON3) That Support Internal and External Calibration
♦Scalable Dynamic Range for External Analog Inputs
♦Internal Direct-to-Digital Temperature Sensor
♦Alarm and Warning Flags for All Monitored Channels
♦Two Linear, 256-Position, Nonvolatile Temperature Controlled Variable Resistors
♦Resistor Settings Changeable Every 2°C
♦Three Levels of Security
♦Access to Monitoring and ID Information Configurable with Separate Device Addresses
♦2-Wire Serial Interface
♦Two Buffers with TTL/CMOS-Compatible Inputs and Open-Drain Outputs
♦Operates from a 3.3V or 5V Supply
♦-40°C to +95°C Operating Temperature Range