AD7690BCPZRL:  18位、1.5 LSB INL、400 kSPS PulSAR® 差分ADC,采用MSOP/QFN封装

AD7690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位不失码的采样ADC、一个内部转换时钟和一个多功能串行接口。在CNV上升沿,AD7690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为0 V到REF,相位相反。基准电压(REF)由外部提供,最高可以设置为电源电压。AD7690的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。它采用独立的VIO电源,与1.8V、2.5V、3V或5V逻辑兼容。AD7690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。

The AD7690 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 with no missing codes, an internal conversion clock, and a versatile serial interface port. On the CNV rising edge, it samples the voltage difference between the IN+ and IN− pins. The voltages on these pins swing in opposite phase between 0 V and REF. The reference voltage, REF, is applied externally and can be set up to the supply voltage.The power of the AD7690 scales linearly with the 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, or 5 V logic, using the separate VIO supply.The AD7690 is housed in a 10-lead MSOP or a 10-lead QFN (LFCSP) with operation specified from −40°C to +85°C.

产品应用领域 Applications
产品应用领域 Applications
AD7690BCPZRL 特点
AD7690BCPZRL 功能框图

AD7690 芯片订购指南
产品型号 产品状态 封装 引脚 温度范围
AD7690BCPZRL Prodn 10 ld LFCSP (3x3mm) 10 工业
AD7690BCPZRL7 Prodn 10 ld LFCSP (3x3mm) 10 工业
AD7690BRMZ Prodn 10 ld MSOP 10 工业
AD7690BRMZ-RL7 Prodn 10 ld MSOP 10 工业
AD7690BCPZRL 应用技术支持与电子电路设计开发资源下载
  1. AD7690 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