SPECIFICATIONS

Brand Name: NoEnName_Null

Certification: NONE

Compatible Audio & Video Equipment Style: Earphones & Headphones

High-concerned chemical: none

Model Number: OPA828

Origin: Mainland China

Opa828 JFET is an upgraded version of opa627 operational amplifier, which integrates high speed, high DC precision and high AC performance. The operational amplifier can realize low offset voltage (50 µ V), low temperature drift (0.45 µ V / ° C typical value), low bias current (1pA typical value) and low noise (4nv / √ Hz typical value). The noise is only 60nvrms 0.1Hz to 10Hz. Opa828 operates in a wide supply voltage range of ± 4V to ± 18V, and the supply current of each channel is only 5.5ma (typical value).

***Note that opa828 is not ad828. It comes from chips of different grades.

The sound quality is more transparent than the classic high-end opa627. It is very penetrating, and the medium frequency is also very delicate without burr. It is very worthy of new machines and grinding machines

The switching operational amplifiers are made of German silver solder to ensure sound quality, and the pins are gold-plated pins

The SMD to in-line single operational amplifier version can be upgraded to ne5534, opa627, opa604, lme49710, ad797, etc

The SMD to in-line dual operational amplifier version can be upgraded to ne5532, muses8920, opa2604, lme49720, op275, ad827, etc