DESCRIPTION
The LM385/385B Micropower Voltage References are two terminal bandgap reference diodes designed and optimized for accurate low power operation in portable and other power sensitive systems. Operating currents are guaranteed from as low as 15µA up to 20mA for the LM385/385B-1.2, and 20µA up to 20mA for the LM385/385B-2.5, giving designers a great deal of flexibility in optimizing power consumption, noise and ultimate application performance. As an added feature, the references output impedance is extraordinarily low over the entire operating range of quiescent currents. This enables an extremely wide dynamic load range with little effect on the overall reference accuracy.

KEY FEATURES
■ GUARANTEED 1% INITIAL ACCURACY (LM385B-1.2)
■ GUARANTEED 2.5% INITIAL ACCURACY (LM385-1.2)
■ GUARANTEED 1.5% INITIAL ACCURACY (LM385B-2.5)
■ GUARANTEED 3% INITIAL ACCURACY (LM385-2.5)
□ GUARANTEED 20µA OPERATING CURRENT
□ LOW TEMPERATURE COEFFICIENT
□ OPERATING CURRENT OF 20µA TO 20mA
□ VERY LOW DYNAMIC IMPEDANCE . . . 1Ω

APPLICATIONS
■ PORTABLE METER REFERENCES
□ PORTABLE TEST INSTRUMENTS
□ BATTERY OPERATED SYSTEMS
□ CURRENT LOOP INSTRUMENTATION