Yes, BB's full name is Burr-Brown. Burr-Brown was founded in 1956. This is a company that manufactures analog integrated circuits. In 2000, it was acquired by Texas Instruments and merged into its high-performance analog devices department, specializing in the production of analog devices (ADC, DAC, etc. ). So BB is now one of the brands of Texas Instruments.
To buy IC products such as TI and BB, you can try Shenzhen Mao Sen Integrated Circuit Co., Ltd. You can search "Mao Sen IC" to find the contact information.