The OPA1622 is a dual-channel, bipolar input, SoundPlus audio operational amplifier. The device has a low noise density of 2.8nV/Hz and a low +N of -119.2dB at 1kHz, while being to drive a 32 load at 100mW output power. The OPA1622 has high AC power supply rejection ratio (PSRR) and common-mode rejection ratio (CMRR) specifications to noise from the power supply, making it ideal for portable audio applications. In addition, the device has a high output drive capability of +145mA/-130mA to directly drive headphones. OPA1622 supports a wide power supply voltage range of 2V to 18V, and the power supply current per channel is only 2.6m General op amps such as NE5532 and OPA2604 have an output current of less than 50MA, while OPA1622 outputs up to 145MA, which greatly increases the driving force, making the circuit more compatible, with lower output impedance, high and low bass levels, and very good dynamic performance. (Different batches may have different printed characters, but it does not affect the use) Color: green Material: PCB Package Contents: 1 * Amplifier Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.