资料下载
8通道1.5 MSPS具有序列12位和10位并行模数转换器ad7938/ad7939数据表
分享资料个
The AD7938/AD7939 are 12-bit and 10-bit， high speed， low power， successive approximation （SAR） analog-to-digital converters （ADCs）。 The parts operate from a single 2.7 V to 5.25 V power supply and feature throughput rates up to 1.5 MSPS. The parts contain a low noise， wide bandwidth， differential track-and-hold amplifier that can handle input frequencies up to 50 MHz. The AD7938/AD7939 feature eight analog input channels with a channel sequencer that allows a preprogrammed selection of channels to be converted sequentially. These parts can operate with either single-ended， fully differential， or pseudo differential analog inputs. The conversion process and data acquisition are controlled using standard control inputs that allow easy interfacing with microprocessors and DSPs. The input signal is sampled on the falling edge of CONVST and the conversion is also initiated at this point. The AD7938/AD7939 have an accurate on-chip 2.5 V reference that can be used as the reference source for the analog-to-digital conversion. Alternatively， this pin can be overdriven to provide an external reference.
声明：本文内容及配图由入驻作者撰写或者入驻合作网站授权转载。文章观点仅代表作者本人，不代表电子发烧友网立场。文章及其配图仅供工程师学习之用，如有内容侵权或者其他违规问题，请联系本站处理。 举报投诉
- 相关下载
- 相关文章
