BA2115F-E2

The BA2115F-E2 is a single-channel, low-noise operational amplifier (op-amp) that is typically used as a part of an instrumentation amplifier for low-level signal amplification. Common applications for the BA2115F-E2 range from audio and video equipment to medical, scientific, and industrial testing instruments.

The BA2115F-E2 is a monolithic op-amp designed with complementary FET input stages that provide low-voltage, low-bias current, and high-input-impedance operation. Additionally, the amplifier pins are internally protected against static discharge and input overvoltage up to 32V. This op-amp\'s good stability, high common-mode rejection ratio (CMRR) of 70 dB with dual power supplies, and extreme low bias currents result in a high-performance op-amp with many versatile applications.

The BA2115F-E2 is a two-terminal op-amp consisting of a differential input stage, completed with a pair of FETs. The differential input stage non-inverting input, inverting input and output pins all connect to the device through four pins, using a dual-in-line (DIP) or small-outline integrated circuit (SOIC) packaging. The BA2115F-E2 features an active power-saving automatic power down (APD) capability at a single supply of 2.6V, where the device only draws a supply current of 0.1μA when the IN- pin is open. This feature makes the device suitable for portable applications.

The working principle of the BA2115F-E2 is founded on the concept of amplifying a differential voltage or current. The differential inputs are the signal to be amplified and the external feedback. The input signal is applied to one of the pins, while the other is held at ground or a reference voltage. The amplifier then amplifies the difference of the two input voltages and outputs the signal on the output pin.

The BA2115F-E2 is part of the popular BA212x series, which exhibits low voltage noise of 4.3x 10-9 V/√Hz, an output current limit of ±12 mA, a unity-gain frequency of up to 7.5 Mhz, and high gain of up to 130 dB. These features make the device suitable for audio, optic, and electroacoustic equipment, such as audio amplifiers, optical receivers, and stereo effects. Additionally, the fast slew rates of 12 V/μs makes the BA212x series the right choice for medical and industrial equipment, such as respirators, flow meters, and oil and gas equipment.

The BA2115F-E2 is a low-noise, low-voltage, and power-saving op-amp with many versatile applications in the fields of audio, video, medical, scientific, and industrial equipment. It is part of the popular BA212x series of op-amps, which features excellent performance in terms of noise, current, and gain. High levels of protection against static discharge and input overvoltage make this device an ideal choice for a wide range of applications.