There are some counterfeit OPA2132s on the market, the price is as low as 3-5 yuan, which is cheaper than disassembled. The actual ones are fake. The obvious place is the reverse bottom. The bottom is just randomly labeled with several serial numbers, and there is no place of origin. Marked as 100% fake. All TI&x27;s op amps have a place of origin, so fakes are not allowed OPA2132 is currently on the market in Taiwan, Malaysia, and the Philippines.
Take a photo of the real picture, the bottom can be reversed to see the place of origin, Malaysia
Compared with OPA2604, the most obvious is that the human voice is better, and it can work under very low voltage and perform well