1PCS OPA891 Single to Dual Operational Amplifier Upgrade OPA828/AD8620

Ti opa891 0891 single to dual operational amplifier, welded and made with a dedicated adapter board to solve crosstalk problemsA 100nf capacitor is connected in parallel with four power pins, and a 6.8uf polymer tantalum capacitor is shared on the back. The chip is ordered from the official for fidelity, and the current one is a decoupling operational amplifier board made according to the official PDF recommendation. The 4-layer board is gold-plated, with gold-plated pins and mysterious hot soldering, giving it a strong sense of air and a unique and secret design. The sound is just different.The capacitor adopts a polymer tantalum capacitor with four Murata 0.1uf capacitors, and the distance from the pin is less than 2mm. The polymer tantalum capacitor perfectly solves the problem of high esr of ordinary tantalum capacitors while maintaining stable working effect in various frequency bands. Those who understand this thing know that the price is expensive