DS1857

Voltage on V_CC Relative to Ground.......................-0.5V to +6.0V
Voltage on Inputs Relative
   to Ground* ................................................-0.5V to V_CC + 0.5V
Voltage on Resistor Inputs Relative
   to Ground* ................................................-0.5V to V_CC + 0.5V
Current into Resistors............................................................5mA
Operating Temperature Range .........................-40°C to +95°C
Programming Temperature Range .......................0°C to +70°C
Storage Temperature Range ..........................-55°C to +125°C
Soldering Temperature .........................................See IPC/JEDEC
                                                               J-STD-020A Specification
*Not to exceed 6.0V.

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.

The DS1857 dual temperature-controlled nonvolatile (NV) variable resistors with external temperature input and monitors consists of two 50k 256-position linear variable resistors, two analog monitor inputs (MON1,MON2), and an external temperature sensor input. The device DS1857 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.