SPECIFICATIONS

Brand Name: AkLIAM

Compatible Audio & Video Equipment Style: Earphones & Headphones,Speakers,Amplifier,player,Digital-to-Analog Converter (DAC),Professional Audio Equipment

High-concerned chemical: none

Model Number: OPA2891

Origin: US(Origin)

Please Pay Attention:
▶ Please shop rationally and choose what you really need! Please DO NOT return it if there's no quality issue.
▶ We DO NOT accept "Return & Refund" if there is no quality defect, otherwise we may blacklist or block certain countries/regions.
▶ AkLIAM has been deeply involved in operational amplifier chips for over 5 years. We ensure that all chips in our store are original and we will not compromise our brand image for short-term gains.
▶ We confirm that it has been carefully inspected before shippment, and there is no quality defects under normal circumstances.
▶ Please carefully confirm the demand and applicability before purchase.You can feel free to contact us if you have any doubts or inquiries.
▶ According to our testing and feedback from a large number of users, under normal circumstances, using this op amp instead of some basic op amps will significantly improve the sound quality. But we cannot guarantee all device has this effect because the final display of sound quality depends on many factors, such as device design and user listening experience, for example, the role of op amp in circuits, the quality of decoders/amplifiers, the quality of speakers/headphones, personal sensitivity to audio, and so on, all subjectively affect the final judgment.
▶ If users can not feel a significant improvement in sound quality on a certain device after using it to replace the default basic operational amplifier of most devices, please do not rush to draw conclusions. We suggest that you test it on other devices or ask your friends with rich audio experience to help you test it. We ensure that you will ultimately feel the true value that this product should have.

Features:
OPA2891 is an ultra-low voltage noise, high-speed voltage feedback amplifier that is highly suitable for applications that require low voltage noise, including communication and imaging. The dual channel amplifier OPA2891 provides excellent AC performance with a bandwidth of 140MHz, gain (G)=2V/V, slew rate of 105V/µ s, and stabilization time of 70ns (0.1%). OPA2891 has stable unity gain and a bandwidth of 180MHz. OPA2891 has a total harmonic distortion (THD) of -100dBc at f=1MHz and ultra-low noise of 0.95nV/√ Hz, designed specifically for applications that require low distortion and low noise, such as buffered analog-to-digital converters.

Parameter:
▶ Ultra low 0.95nV/√ Hz voltage noise
▶ 180MHz unit bandwidth gain product
▶ The bandwidth at a gain of 2V/V (-1V/V) is 140MHz
▶ 105V/µ s slew rate
▶ Extremely low distortion
THD = -91dBc（f = 1MHz，RL = 150Ω）
THD = -100dBc（f = 1MHz，RL = 1kΩ）
THD+N = –137dBc（f = 1kHz，BW = 80kHz）
▶ Typical operating voltage range from ± 4.5V to ± 18V

Package: 2 * TI OPA2891 Dual Channel Op Amp(Sop8-Dip8)