LT3097 Datasheet | Analog Devices

FEATURES APPLICATIONS - Ultra-low output RMS noise: 0.8 μV rms (10 Hz to 100 k Hz) - Ultra-low output noise spectral density: 2 n V/√Hz (Positive) and 2.2 n V/√Hz (Negative) at 10 k Hz - Ultra-low 1/f noise: 10 µV p-p (Positive) and 3.2 µV p-p (Nega- tive) (0.1 Hz to 10 Hz) - Ultra-high PSRR: 76 d B (Positive) and 74 d B (Negative) at 1 MHz - Output current: 500 m A - Wide input voltage range: ±1.8 V to ±20 V - Single capacitor per channel improves noise and PSRR - SET pin current: 100 µA, ±1% initial accuracy - Single resistor per channel programs output voltage - Programmable current limit - Low-dropout voltage: 260 m V (Positive) and 235 m V (Negative) - Output voltage range: 0 V to 15 V (Positive) and 0 V to - 19.5 V (Negative) - Programmable power good - Fast start-up capability - Precision enable/undervoltage lockout (UVLO) - Internal current limit with foldback - Minimum output capacitor: 10 µF ceramic - pact, low-profile, 22-lead, 6 mm × 3 mm, Plastic DFN package TYPICAL APPLICATION - Bipolar very low-noise power supplies - RF power supplies: phase-locked loops, voltage-controlled oscil- lators, mixers, low-noise amplifiers, and power amplifiers - Low-noise instrumentation - High-speed and high-precision data converters - Medical applications: imaging and diagnostics - Precision power supplies - Postregulator for switching supplies GENERAL DESCRIPTION The LT3097 is a dual, positive and negative, high-performance, low-dropout linear regulator featuring Analog Devices, Inc., ultralow noise and ultra-high power supply rejection ratio (PSRR) architecture for powering noise-sensitive applications. Each regulator delivers up to 500 m A with a typical 260 m V/235 m V (positive/negative) dropout voltage. Operating quiescent current is nominally 2.2 m A/2.35 m A (positive/negative) and drops to 0.3 µA/3 µA (positive/negative) in shutdown. The LT3097 has a wide output voltage range (0 V to 15 V, positive and 0 V to -19.5 V, negative) error amplifier that operates in unity-gain...