The REF192GSZ is a precision band gap Voltage Reference uses a patented temperature drift curvature correction circuit and laser trimming of highly stable, thin-film resistors to achieve a very low temperature coefficient and high initial accuracy. It is made up of micropower, low dropout voltage (LDV) devices, providing stable output voltage from supplies as low as 100mV above the output voltage and consuming less than 45μA of supply current. In sleep mode, which is enabled by applying a low TTL or CMOS level to the SLEEP pin, the output is turned off and supply current is further reduced to less than 15μA.