MAX6126

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference

Ultra-High-Precision, Ultra-Low-Noise, Series Voltage Reference Features 3ppm/°C (max) Temperature Coefficients and an Excellent ±0.02% (max) Initial Accuracy

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设计笔记

Design Note- ds2-analog_voltage-ref-long-term-stability

优势和特点

Ultra-Low 1.3µV_P-P Noise (0.1Hz to 10Hz, 2.048V Output)
Ultra-Low 3ppm/°C (max) Temperature Coefficient
±0.02% (max) Initial Accuracy
Wide (V_OUT + 200mV) to 12.6V Supply Voltage Range
Low 200mV (max) Dropout Voltage
380µA Quiescent Supply Current
10mA Sink/Source-Current Capability
Stable with C_LOAD = 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

产品详情

The MAX6126 is an ultra-low-noise, high-precision, low-dropout 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 1.3µV_P-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^®, as well as 8-pin SO packages.

Applications

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

产品分类

线性产品
- 串联基准电压源

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