DS1848E-010+

The DS1848E-010+ is a dual, temperature-controlled non-volatile variable resistor and memory in 14 pin TSSOP package. It is a two 256-position linear variable resistor which incorporates a direct to digital temperature sensor. The variable resistors settings are stored in EEPROM memory and can be accessed over the industry standard 2-wire serial bus. The value of each variable resistor is determined by a temperature-addressed look-up table which can assign a unique value to each resistor for every 2°C increment over the -40°C to +95°C range. Output of the digital temperature sensor is available as a 13bit 2's complement value over the serial bus. DS1848 is ideally used for setting and temperature-compensating bias voltages and currents in control applications using a minimum of circuitry.

• Supply voltage range is 3V to 5.5V
• Operating temperature range from -40°C to 95°C
• Control via 2-wire interface
• Resistor settings changeable by every 2°C
• I/O interface pins consist of SDA (serial data interface) and SCL (serial clock input)
• End to end resistance is 10Kohm at ±20% tolerance and temperature coefficient is 850ppm/°C
• Programming temperature is 0°C to +70°C
• 128 bytes of user EEPROM

Applications

Signal Processing

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party