Digital Potentiometer 256POS 20KOhm Dual 16-Pin CSBGA T/R

The DS1859 dual, temperature-controlled, nonvolatile (NV) variable resistors with three monitors consists of two 50kO or two 20kO, 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.

• SFF-8472 Compatible
• Five Monitored Channels (Temperature, V_CC, 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 50kO or Two 20kO, Linear, 256-Position, Nonvolatile Temperature-Controlled Variable Resistors
• Resistor Settings Changeable Every 2°C
• 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
• Operating Temperature Range of -40°C to +95°C