DescriptionThe LMx85-2.5 and LM385B

DescriptionThe LMx85-2.5 and LM385B are micropower, twoterminal,band-gap voltage references that operateover a 20-μA to 20-mA current range and featureexceptionally low dynamic impedance and goodtemperature stability. On-chip trimming provides tightvoltage tolerance. The band-gap reference for thesedevices has low noise and long-term stability.The design makes these devices exceptionallytolerant of capacitive loading and, thus, easier to usein most reference applications. The wide dynamicoperating temperature range accommodates varyingcurrent supplies, with excellent regulation.The extremely low power drain of this series makesthese devices useful for micropower circuitry. Thesevoltage references can be used to make portablemeters, regulators, or general-purpose analogcircuitry, with battery life approaching shelf life. Thewide operating current range of these voltagereferences allows them to replace older referenceswith tighter-tolerance parts.