MAX6226 Datasheet | Maxim Integrated

Click here 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 5ppm/°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 voltage is 2.5V. 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. 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 5ppm/°C (Max) Temperature Coefficient - - ±0.02% (Max) Initial Accuracy - - Wide (VOUT + 200m V) to 12.6V Supply Voltage Range - - Low 200m V (Max) Dropout Voltage - - 380μA Quiescent Supply Current - - 10m A Sink/Source-Current...