AD797BR-REEL

Analog Devices\' AD797BR-REEL is a precision, high-performance low-noise, single-supply, rail-to-rail operational amplifier. This particular device is optimized for differential-input, single-ended output operation and is ideal for driving low-voltage, high-current loads such as thermocouples and strain gauges. It has excellent common-mode performance and can be used in both single-supply and dual-supply circuit topologies. As such, it is suited to a wide range of application fields and makes an ideal choice wherever high-precision processing of small signals is required.

Application Fields

The AD797BR-REEL is suitable for a wide range of instrumentation applications, including thermocouples and strain gauge transducers, bridge and bridge- excitation circuits, low-voltage power supplies, filters, signal converters and signal conditioners. It is ideal for use in signal conditioning applications including temperature, pressure, strain, and acceleration measurements. Furthermore, it is also suitable for signal conditioning applications related to industrial process control, automation systems and medical instrumentation. In addition, the device can be used in DC servo-control circuits, audio signal processing, and high-performance operational amplifiers.

Working Principle

The AD797BR-REEL operates on a single 5V supply and features high-precision tracking and gain stability over temperature and supply voltage variations, making it a very versatile device. It features a low-noise, low-input bias current amplifier with a guaranteed input offset voltage of less than 7μV max. It also features 0.3μA of max input bias current and a maximum input offset voltage drift of less than 30nV/°C. The output stage can source/sink up to 2.5mA, making it ideal for driving low-voltage, high-current loads. The output offset voltage can be trimmed to near 0V with external adjustment. The AD797BR-REEL provides excellent common-mode and power supply rejection, making it an ideal choice for single-supply, rail-to-rail operation.

The AD797BR-REEL features low power consumption, making it an ideal choice for portable and battery-powered applications. The quiescent current is less than 80μA and is adjustable with the addition of an external resistor. The device also features short-circuit and over-temperature protection. It is available in a wide variety of packages, including SOIC, SOT-23, and micro-SOIC.

Conclusion

In conclusion, the AD797BR-REEL is a high-performance, low-noise single-supply, rail-to-rail operational amplifier with excellent common-mode performance and low power consumption. It is suitable for a wide range of applications, including instrumentation, DC servo-control circuits, audio signal processing, and high-performance operational amplifiers. It is an ideal fit for applications which require precise tracking and gain stability, such as thermocouples and strain gauge transducers, bridge and bridge-excitation circuits, low-voltage power supplies, filters, signal converters and signal conditioners. The AD797BR-REEL is offered in a wide range of packages and can be used in both single-supply and dual-supply circuit topologies.