AD688AQ

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AD688AQ is a Voltage Reference PMIC (Power Management Integrated Circuit) created by Analog Devices. It is a low cost, voltage reference chip that can be used to provide accurate and stable voltage references for various applications. The AD688AQ is a single-channel device and is specified to operate over a temperature range between -40°C and 125°C. It is available in both SOIC and 8-lead PDIP packages.

Analog Devices\' AD688AQ is designed to provide accurate and stable performance. It provides a 5V output reference voltage with a typical tolerance of ±0.3%, which ensures that the ADC and DAC signals in circuit designs stay within their specified ranges. In addition, it provides a low power shut-down feature and low drop-out voltage, which eliminates the need for small signal regulation.

The AD688AQ utilizes a bandgap reference to provide a stable voltage reference. It provides output current from 2mA to 20mA, depending on the voltage used. It is designed with integrated thermal protection and current limit circuitry, which guards against possible damage due to overload or shorts. In addition, the AD688AQ features an under-voltage lockout (UVLO) circuit that prevents it from turning on until a minimum voltage is applied.

The AD688AQ has various applications in different domains. It can be used in precision analog-to-digital and digital-to-analog converters (ADCs and DACs) for signal conditioning, as well as in various data acquisition systems, instrumentation, medical and industrial controls, communications systems, and high-fidelity audio systems. It can also be used in ADC and DAC reference systems, signal processing and data acquisition systems, as well as in microcontroller-based systems.

The AD688AQ is easy to use and requires minimal external components for operation. It requires two external bypass capacitors to filter out noise and provide a steady load current. It is also designed with thermal shutdown circuitry, which protects it from thermal damage when the junction temperature exceeds 150°C. In addition, the device can be powered from a single 5V or 3V supply.

The AD688AQ offers an excellent combination of performance, size, and affordability. It is a great choice for applications that require accurate and stable voltage references. The device\'s low power consumption, low dropout voltage and integrated protection circuitry make it an ideal choice for many precision analog and digital applications. It is available in 8-pin PDIP, which makes it easy to integrate into existing circuit designs.

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