MAX6126AASA25+T

The MAX6126 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 1.3μVₚ₋ₚ and wideband noise as low as 60nV / √Hz (2.048V output) without the increased supply current usually found in low- noise references. Improve wideband noise to 35nV / √Hz and AC power- supply rejection by adding a 0.1μF capacitor at the noise reduction pin. The MAX6126 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 0.025Ω for sink and source currents up to 10mA. These devices are available over the automotive temperature range of - 40°C to +125°C. The MAX6126 typically draws 380μA of supply current and is available in 2.048V, 2.500V, 2.800V, 3.000V, 3.300V, 3.600V, 4.096V, and 5.000V output voltages. The MAX6126 also feature dropout voltages as low as 200mV. Unlike conventional shunt- mode (two- terminal) references that waste supply current and require an external resistor, the MAX6126 offers supply current that is virtually independent of supply voltage and does not require an external resistor. The MAX6126 is stable with 0.1μF to 10μF of load capacitance. The MAX6126 is available in the tiny 8- pin μMAX⁽ᴮ⁾, as well as 8- pin SO packages.

Applications

• High- Resolution A/D and D/A Converters
• ATE Equipment
• High- Accuracy Reference Standard
• Precision Current Sources
• Digital Voltmeters
• High- Accuracy Industrial and Process Control

Key features

• Ultra- Low 1.3μVₚ₋ₚ Noise (0.1Hz to 10Hz, 2.048V Output)
• Ultra- Low 3ppm / °C (max) Temperature Coefficient
• ±0.02% (max) Initial Accuracy
• Wide (Vₒᵤₜ + 200mV) to 12.6V Supply Voltage Range
• Low 200mV (max) Dropout Voltage
• 380μA Quiescent Supply Current
• 10mA Sink/Source- Current Capability
• Stable with Cₗₒₐd = 0.1μF to 10μF
• Low 20ppm/1000hr Long- Term Stability
• 0.025Ω (max) Load Regulation
• 20μV / V (max) Line Regulation
• Force and Sense Outputs for Remote Sensing