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DATASHEET
ISL21400
Programmable Temperature Slope Voltage Reference
FN8091 Rev 3.00 March 31, 2011
The ISL21400 features a precision voltage reference combined with a temperature sensor whose output voltage varies linearly with temperature. The precision 1.20V reference has a very low temperature coefficient (tempco), and its output voltage is scaled by an internal DAC (VREF) to produce a temperature stable output voltage that is programmable from 0V to 1.20V. The output voltage from the temperature sensor (VTS) is summed with VREF to produce a temperature dependent output voltage.
The slope of the VTS portion of the output voltage can be programmed to be positive or negative in the range -2.1mV/°C to +2.1mV/°C.