AD7685BRM:  16位、250 kSPS PulSAR® ADC,采用MSOP或QFN封装

AD7685是一款16位、电荷再分配、逐次逼近型模数转换器(ADC),采用2.3 V至5.5 V单电源(VDD)供电。该器件内置一个低功耗、高速、16位无失码采样ADC、一个内部转换时钟和一个多功能串行接口端口,还集成了一个低噪声、宽带宽、短孔径延迟的采样保持电路。在CNV上升沿,该器件对IN+与IN-之间的模拟输入电压差进行采样,范围从0 V至REF。基准电压(REF)由外部提供,最高可设置为电源电压。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,或提供一个可选的忙闲指示功能。采用独立电源VIO时,该器件与1.8V、2.5V、3V或5V逻辑兼容。AD7685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 AD7685 is a 16-bit, charge redistribution successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDD, between 2.3 V to 5.5 V. It contains a low power, high speed, 16-bit sampling ADC with no missing codes, an internal conversion clock, and a versatile serial interface port. The part also contains a low noise, wide bandwidth, short aperture delay, track-and-hold circuit. On the CNV rising edge, it samples an analog input IN+ between 0 V to REF with respect to a ground sense IN−. The reference voltage, REF, is applied externally and can be set up to the supply voltage.Power dissipation 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 or provides an optional BUSY indicator. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic using the separate supply VIO.The AD7685 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
AD7685BRM 特点
AD7685BRM 功能框图

AD7685 芯片订购指南
产品型号 产品状态 封装 引脚 温度范围
AD7685ACPZRL Prodn 10 ld LFCSP (3x3mm) 10 工业
AD7685ACPZRL7 Prodn 10 ld LFCSP (3x3mm) 10 工业
AD7685ARM Prodn 10 ld MSOP 10 工业
AD7685ARMRL7 Prodn 10 ld MSOP 10 工业
AD7685ARMZ Prodn 10 ld MSOP 10 工业
AD7685ARMZRL7 Prodn 10 ld MSOP 10 工业
AD7685BCPZRL Prodn 10 ld LFCSP (3x3mm) 10 工业
AD7685BCPZRL7 Prodn 10 ld LFCSP (3x3mm) 10 工业
AD7685BRM Prodn 10 ld MSOP 10 工业
AD7685BRMRL7 Prodn 10 ld MSOP 10 工业
AD7685BRMZ Prodn 10 ld MSOP 10 工业
AD7685BRMZRL7 Prodn 10 ld MSOP 10 工业
AD7685CCPZRL Prodn 10 ld LFCSP (3x3mm) 10 工业
AD7685CCPZRL7 Prodn 10 ld LFCSP (3x3mm) 10 工业
AD7685CRM Prodn 10 ld MSOP 10 工业
AD7685CRMRL7 Prodn 10 ld MSOP 10 工业
AD7685CRMZ Prodn 10 ld MSOP 10 工业
AD7685CRMZRL7 Prodn 10 ld MSOP 10 工业
EVAL-AD7685CBZ Prodn EVALUATION BOARDS 10 工业
AD7685BRM 应用技术支持与电子电路设计开发资源下载
  1. AD7685 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