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AD7982BRMZ: 18位、1 MSPS PulSAR(R) 7.0 mW ADC,采用MSOP或QFN封装

The AD7982 is an 18-bit, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDD. It contains a low power, high speed, 18-bit sampling ADC and a versatile serial interface port. On the CNV rising edge, the AD7982 samples the voltage difference between the IN+ and IN- pins. The voltages on these pins usually swing in opposite phases between 0 V and VREF. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD. Its power scales linearly with throughput.

The SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single 3-wire bus and provides an optional busy indicator. It is compatible with 1.8 V, 2.5 V, 3 V, and 5 V logic, using the separate VIO supply.The AD7982 is available in a 10-lead MSOP or a 10-lead QFN (LFCSP) with operation specified from -40°C to +85°C.

AD7982是一款18位、逐次逼近型模数转换器(ADC),采用单电源(VDD)供电。它内置一个低功耗、高速、18位采样ADC和一个多功能串行接口端口。在CNV上升沿,AD7982对IN+与IN-引脚之间的电压差进行采样,这两个引脚上的电压摆幅通常在0 V至V REF之间、相位相反。基准电压(REF)由外部提供,并且可以独立于电源电压(VDD)。其功耗和吞吐量呈线性变化关系。

SPI兼容串行接口还能够利用SDI输入,将几个ADC以菊花链形式连结到单三线式总线上,并提供一个可选的忙闲指示。采用独立电源VIO时,该器件与1.8V、2.5V、3V和5V逻辑兼容。

AD7982采用10引脚MSOP封装或10引脚QFN (LFCSP)封装,工作温度范围为-40°C至+85°C

产品应用领域 Applications
AD7982BRMZ 特点
AD7982 芯片订购指南
产品型号 产品状态 封装 引脚 温度范围
AD7982BCPZ-RL Prodn 10 ld LFCSP (3x3mm) 10 工业
AD7982BCPZ-RL7 Prodn 10 ld LFCSP (3x3mm) 10 工业
AD7982BRMZ Prodn 10 ld MSOP 10 工业
AD7982BRMZRL7 Prodn 10 ld MSOP 10 工业
AD7982BRMZ 应用技术支持与电子电路设计开发资源下载
  1. AD7982 数据手册DataSheet下载. pdf
  2. Analog Devices, Inc.ADI 美国模拟器件公司产品订购手册 .PDF
  3. ADC模数转换器选型指南 . PDF