DESCRIPTION

The DS1848 Dual Temperature-Controlled Nonvolatile (NV) Variable Resistor consists of two 256-position linear, variable resistors. The DS1848-050 consists of one 10kΩand one 50kΩ, while the DS1848-010 consists of two 10kΩ resistors; both incorporate 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 a minimum of circuitry.

FEATURES

■ Two linear taper, temperature-controlled variable resistors

■ DS1848-050

- One 50kΩ, 256 position

- One 10kΩ, 256 position

■ DS1848-010

- Two 10kΩ, 256 position

■ Resistor settings changeable every 2°C

■ Access to temperature data and device control via a 2-wire interface

■ Operates from 3V or 5V supplies

■ Packaging: 14-pin TSSOP, 16-ball CSBGA

■ Operating temperature: -40ºC to +95ºC

■ Programming temperature: 0ºC to +70ºC

■ 128 bytes of user EEPROM