3 说明
ADS85x8 具备 8 个基于逐次逼近寄存器 (SAR) 的低功耗 12 位、14 位或 16 位模数转换器 (ADC),每个 ADC 都配有真正的双极输入。这些通道分组为四对,能够以高达 650kSPS 的速率同时采集信号。
这些器件允许选择并行或串行接口,并且支持菊花链连接。可编程基准允许处理幅值最高可达 ±12V 的模拟输入信号。
ADS85x8 系列采用 64 引脚超薄四方扁平无引线 (VQFN) 和薄型四方扁平 (LQFP) 封装,并且支持自动休眠模式,可最大限度地降低功耗。整个系列的额定工作温度范围为 -40℃ 至 +125℃。
器件型号 |
封装 |
封装尺寸(标称值) |
ADS85x8 |
VQFN (64) |
9.00mm x 9.00mm |
LQFP (64) |
10.00mm x 10.00mm |
- 要了解所有可用封装,请参见数据表末尾的可订购米6体育平台手机版_好二三四附录。
4 修订历史记录
Changes from B Revision (November 2015) to C Revision
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Changed Figure 45: changed capacitor values from 820 nF to 820 pF Go
Changes from A Revision (October 2011) to B Revision
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已添加 ESD 额定值表,建议运行条件表,特性 描述部分,器件功能模式部分,寄存器映射部分,应用和实施部分,电源相关建议部分,布局部分,器件和文档支持部分以及机械、封装和可订购信息部分Go
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Changed title of Device Comparison Table, deleted footnote 1 Go
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Added Storage temperature parameter to Absolute Maximum Ratings tableGo
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Changed Clock cycles per conversion to be a single parameter instead of part of tCONV parameter in Serial Interface Timing Requirements table Go
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Changed tBUFS parameter in Serial Interface Timing Requirements tableGo
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Added footnote 3 to Serial Interface Timing Requirements tableGo
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Changed Clock cycles per conversion to be a single parameter instead of part of tCONV parameter in Parallel Interface Timing Requirements (Read Access) table Go
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Changed tBUCS parameter in Parallel Interface Timing Requirements (Read Access) table Go
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Added footnote 3 to Parallel Interface Timing Requirements (Read Access) table Go
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Changed Data Readout and BUSY/INT Signal sectionGo
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Added Sequential Operation sectionGo
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Changed description of initiating a new conversion in Reset and Power-Down Modes sectionGo
Changes from * Revision (August 2011) to A Revision
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Deleted INL column from Family/Ordering Information tableGo
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Changed DC Accuracy, INL parameter in ADS8568 Electical Chatacteristics tableGo