LM285Z-1.2

The LM285 is a micropower bandgap voltage reference fabricated using bipolar process technology. It delivers a stable voltage reference over an operating current range of 100µA to 20mA, featuring very low dynamic impedance and excellent temperature stability. An on-chip reference trimming mechanism ensures minimal output voltage tolerance. Since the bandgap reference components in the LM285 consist solely of transistors and resistors, the circuit exhibits very low noise and excellent long-term stability. The LM285 design addresses potential issues across various load conditions, providing wide adaptability to external loads and making it suitable for the vast majority of voltage reference applications. The wide dynamic operating range of the LM285 enables outstanding regulation performance even under large supply voltage variations. While delivering a precision reference, the LM285 requires only minimal quiescent current, making it particularly well-suited for micropower circuits as a voltage reference in battery-powered portable instruments, regulated power supplies, and general-purpose analog circuits. The LM285 is available in two fixed-voltage versions: 1.2V (LM285-1.2) and 2.5V (LM285-2.5). Standard package options include TO-92, SOT-23, SOP-8, and MSOP-8.

Key features

• ±4mV (±0.3%) maximum initial tolerance (Grade A)
• Operating current: 100µA~20mA
• 0.6Ω maximum dynamic impedance (Grade A)
• Low temperature coefficient