OPA234U

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The OPA234U is a Dual Military Grade operational amplifier that provides improved performance and greater system reliability in rugged, power-conscious applications. It is voltage-feedback device with a rail-to-rail output stage and on-chip compensation. It features wide dynamic range and low power consumption. The OPA234U is ideal for use as a low-noise amplifier or line driver in a multitude of audio, instrumentation, and test applications.

Application Field

The OPA234U is perfect for a variety of applications including high-precision audio preamplifiers, voltage followers, instrumental amplifiers, active filters, and high-impedance drivers. OPA234U is especially suitable for systems that require extremely low noise performance such as medical instrumentation, reverberation units, effects units, and vocal processers. With its low-power dissipation, the OPA234U offers wide temperature range operation, making it perfect for use in portable and airborne equipment as well as in automotive applications.

Working Principle

The OPA234U incorporates an input stage consisting of an operational amplifier with both inverting and non-inverting inputs. The main output stage consists of two buffers connected in parallel. To provide active filtering, an integrated transconductance amplifier is used. This amplifier operates in timed-on/timed-off modes, also referred to as switched capacitor, to achieve a variety of filter functions with surprisingly low power consumption. Additionally, the OPA234U includes a low-noise, low-power output amplifier, which provides the driver with a rail-to-rail output drive capability. High-speed outputs can be used for high-bandwidth loads without having to resort to switching regulators for the module\'s power supply.

The OPA234U\'s output buffers feature slew rate control through an on-chip compensation network that allows low-power operation and minimized crosstalk. They provide excellent audio performance, as well as improved noise and settling time characteristics. Additionally, the OPA234U uses an on-chip feedback loop to adjust the slew rate to keep the output comfortably above the maximum allowable rate for the specified load.

The OPA234U\'s dedicated, high-current pin is intended for use as an analog ground, providing enhanced RF and EMI performance. Designers may also use this pin to house the compensation network, thus completely minimizing parasitic capacitance and yielding optimal performance. The device also features a low-power shutdown mode, allowing designers to conserve power when the amplifier is not in use. The OPA234U is ideal for use in applications such as audio, instrumentation, and medical equipment.

The specific data is subject to PDF, and the above content is for reference