The AD688SQ by Analog Devices Inc. is a high-precision, dual-channel voltage reference designed to offer both accuracy and flexibility. This precision voltage reference is known for its high stability and low noise, making it an ideal choice for demanding applications that require a stable voltage source, such as data conversion, instrumentation, and industrial process control systems.

The device features two independent voltage outputs that can be set to 10.000 V and 5.000 V, or both can be adjusted over a ±10% range using external resistors. This flexibility allows users to tailor the output to meet specific system requirements. The AD688SQ operates with a supply voltage range from ±11.4 V to ±18 V, providing reliable performance even under varying supply conditions.

One of the key advantages of the AD688SQ is its exceptional temperature coefficient, typically 5 ppm/°C, ensuring that the voltage reference maintains its precision across a wide temperature range. This is critical in applications where temperature fluctuations are common and can affect the accuracy of the voltage reference.

The AD688SQ also features excellent long-term stability and low noise, with a typical noise of just 1.75 µV p-p (0.1 Hz to 10 Hz), which contributes to the overall system accuracy and makes it suitable for high-resolution analog-to-digital or digital-to-analog converters.

Packaged in a hermetically sealed 14-pin ceramic DIP, the AD688SQ is designed for enhanced durability and reliability in harsh environments. This package, along with the device's inherent robustness, ensures that it can withstand tough industrial conditions without compromising performance.

In summary, the AD688SQ from Analog Devices Inc. is a top-tier, dual-output voltage reference that provides the accuracy, stability, and flexibility needed for critical precision applications. Its high precision and adaptability make it a valuable component in any system requiring a dependable reference voltage.