我厂试制的宽频带放大器SG012(相当于国外的UA733),由于采用了P-n结隔离工艺,同时在版图设计时采取了必要的措施,因此,收到了良好的效果,在作出的产品中,主要指标达到了带宽40兆赫,增益40分贝,其它各项指标都达到了要求,且性能稳定,总成品率达15％,满足了总机单位的要求。它广泛地应用于磁盘、磁鼓、磁带、文字显示等电子计算机外部设备中的前置放大以及各种需要对微小讯号进行放大的设备和仪器中。 I plant a trial of broadband amplifier SG012 (equivalent to foreign UA733), due to the use of the Pn junction isolation process, at the same time in the layout design took the necessary measures, therefore, received good results in the products made, the main Indicators reached the bandwidth of 40 MHz, gain 40 dB, and other indicators have reached the requirements, and the performance is stable, the total finished product rate of 15%, to meet the switchboard unit requirements. It is widely used in pre-amplification in external computer peripherals such as disks, drums, tapes, text displays, and various devices and instruments that require the amplification of small signals.