MAX6226 Datasheet | Analog Devices

Evaluation Kit Available Design Resources Tools and Models Support Click here to ask an associate for production status of specific part numbers. Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference General Description The MAX6226 is an ultra-low-noise, high-precision, lowdropout voltage reference. This family of voltage references feature curvature-correction circuitry and high-stability, laser-trimmed, thin-film resistors that result in 3ppm/°C (max) temperature coefficients and an excellent ±0.02% (max) initial accuracy. The proprietary low-noise reference architecture produces a low flicker noise of 1.45μVP-P and wideband noise as low as 75n V/√Hz (2.5V output) without the increased supply current usually found in low-noise references. Improve wideband noise to 45n V/√Hz and AC power-supply rejection by adding a 0.1μF capacitor at the noise reduction pin. The MAX6226 series mode reference operates from a wide 2.7V to 12.6V supply voltage range and load-regulation specifications are guaranteed to be less than 0.25Ω and 0.05Ω for sink and source currents up to 10m A, respectively. These devices are available over the automotive temperature range of -40°C to +125°C. The MAX6226 typically draws 380μA of supply current and the output voltages are 2.5V, 3.3V, and 5.0V. The MAX6226 also feature dropout voltages as low as 200m V. Unlike conventional shunt-mode (two-terminal) references that waste supply current and require an external resistor, the MAX6226 offers supply current that is virtually independent of supply voltage and does not require an external resistor. The MAX6226 is stable with 0.1μF to 10μF of load capacitance, and is available in an 8-pin ceramic package. Typical Operating Circuit Benefits and Features - 8-pin Hermetically Sealed Ceramic Package Reduces System Board Space - Ultra-Low 1.45μVP-P Noise (0.1Hz to 10Hz, 2.5V Output) - Ultra-Low 3ppm/°C (Max) Temperature Coefficient - ±0.02% (Max) Initial Accuracy - Wide (VOUT + 200m...