Linear Technology LT1004
The LT1004 is a pin-for-pin replacement for the LM185/LM385 series of refFEATURES
nn Guaranteed ± 4mV Initial Accuracy LT1004-1.2 nn Guaranteed ±20mV Accuracy LT1004-2.5 nn Guaranteed 10µA Operating Current nn Guaranteed Temperature Performance nn Operates up to 20mA nn Very Low Dynamic ImpedanceAPPLICATIONS
nn Portable Meter References nn Portable Test Instruments nn Battery-Operated Systems nn Current Loop Instrumentation LT1004 Micropower Voltage ReferenceDESCRIPTION
The LT®1004 micropower voltage reference is a 2-terminal bandgap reference diode designed to provide high accuracy and excellent temperature characteristics at very low operating currents. Optimization of the key parameters in the design, processing and testing of the device results in accuracy specifications previously attainable only with selected units. Below is a distribution plot of reference voltage for a typical lot of LT1004-1.2. Virtually all of the units fall well within the prescribed limits of ±4mV.