AD8226BRZ-RL

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The AD8226BRZ-RL is a low-power, single-supply, temperature-stable (sub 0.01%/°C), rail-to-rail output operational amplifier designed for low voltage circuit applications. This product is an ideal choice for space-constrained, portable applications needing a wide supply voltage range, low input offset voltage (15 µV max), and low power consumption. With a supply current of only 375 µA/amplifier, it can be used in a wide range of linear and interface applications, from active filters to precision signal conditioning.

The AD8226BRZ-RL is a part of Linear\'s \'SLV\' family of monolithic amplifiers and integrates many features that minimize design time and component count. It features a true rail-to-rail output, wide common-mode input range, guaranteed operation over the full industrial temperature range of −40/125 °C, low input bias current and offset voltage, and low supply current.

Application Field

The AD8226BRZ-RL is suitable for a broad range of signal conditioning and signal acquisition applications. These include low-power signal amplifiers and filters, signal-conditioning amplifiers, and closed-loop control systems. Examples of applications utilizing the AD8226BRZ-RL include:

• Low-noise amplifiers
• Signal buffers
• Programmable gain amplifiers
• Current amplifiers
• Sensor amplifiers
• Programmable level converters
• Temperature, pressure, or chemical chemistry measurement amplifiers
• Sensor conditioners
• High slew-rate amplifiers
• Low-side switches

Working Principle

The AD8226BRZ–RL is a high-performance, general-purpose, two-stage operational amplifier. Its wide bandwidth, low supply current and low input-offset voltage make it suitable for a wide range of signal conditioning applications. The amplifier is designed to work effectively in single-supply and dual-supply systems. The single-supply operation enables the AD8226BRZ-RL to operate with very low supply voltages, making it suitable for powering circuits from battery supplies. The dual-supply operation maximises the available dynamic range and the differential input stage dynamically adjusts the common-mode level in response to the input signals. The amplifier has a low output-offset voltage of 0.3 mV and a low input offset voltage of 15 µV.

The AD8226BRZ-RL can be used to build flexible, versatile and low-noise operational amplifier circuits. These circuits can be used to design differential amplifiers, current-to-voltage converters, active filters and capacitively-coupled buffers, among other applications. The rail-to-rail output stage gives a wide output dynamic range, while the low-noise input stage has a low input bias current and offsets. Additionally, the low supply current, wide supply range and low offset voltage make the amplifier well-suited to both low-power and low-noise circuits.

The AD8226BRZ-RL also includes temperature compensation circuitry to provide better impact on temperature performance. The low input-offset drift and power consumption mean that the amplifier can be used with variable supply voltages, or in battery-powered applications, enabling the design of economical and reliable portable biomedical instrumentation. The AD8226BRZ-RL is an ideal choice for many applications, including active filters, high-speed data converters, digital power management systems and precision signal conditioning.

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