The AD651BQ is a high-performance voltage-to-frequency converter designed and manufactured by Analog Devices Inc., a leader in precision high-performance electronics. This device is engineered to provide a reliable and accurate conversion of an analog voltage input into a proportional frequency output. It is a versatile component suitable for a wide range of applications, including data acquisition systems, analog-to-digital conversion, long-term integration, linear frequency modulation, and variable frequency reference generation.

Key Features

• High Linearity: The AD651BQ offers excellent linearity with a nonlinearity specification of typically 0.002% for a 10 kHz full-scale output, ensuring precise conversions for critical applications.
• Wide Dynamic Range: It accommodates a wide dynamic range, allowing for a full-scale frequency range up to 500 kHz, making it suitable for high-speed applications.
• Scalable: The full-scale frequency can be set by a single external resistor, providing flexibility and ease of use for system design adjustments.
• Low Power Consumption: With a supply current of typically 1.5 mA, the AD651BQ is optimized for power-sensitive applications.
• Temperature Stability: The device features a temperature stability of 50 ppm/°C, ensuring consistent performance across a wide temperature range.
• Versatile Power Supply: It operates on a single 5 V to 36 V supply or dual ±5 V to ±18 V supplies, accommodating various power requirements.

Applications

The AD651BQ is ideal for a variety of applications, including but not limited to:

• Motor speed control
• Isolated data transmission
• Frequency to digital conversion
• Signal isolation
• Process control systems

Quality and Reliability

Analog Devices Inc. is committed to the highest standards of quality and reliability. The AD651BQ voltage-to-frequency converter reflects this commitment, providing robust performance in a DIP package that ensures long-term reliability for industrial, commercial, and military applications.

For detailed specifications, application notes, and additional resources, please refer to the official datasheet of the AD651BQ from Analog Devices Inc.