DS1851

Voltage on Any Pin Relative to Ground -.......0.3V to +6.0V
Operating Case Temperature Range ........-40 to +95
Programming Temperature Range ...... ....0 to +70
Storage Temperature Range ...........  -55 to +125
Soldering Temperature ............260 for 10 seconds

* This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability.

The DS1851 dual temperature-controlled nonvolatile (NV) DACs consists of two DACs, two EEPROM look-up tables, and a direct-to-digital temperature sensor. Both of the DACs can be programmed with any temperature coefficient, which means that any system temperature effects can be corrected without any additional external devices. The DS1851 provides an ideal method for setting and temperaturecompensating bias voltages and currents in control applications using a minimal amount of external circuitry.

The user-defined settings for both DS1851 DACs are stored in two EEPROM look-up tables and can be accessed over the industry-standard 2-wire serial bus, which consists of SDA and SCL pins. These look-up tables can assign a unique output value to each DAC for every 4 increment over the -40 to +95 range.

The output of the digital temperature sensor DS1851 is also available as a 12-bit, two's complement value over the serial bus.