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AD7992: 双通道，12位ADC，带I²C兼容接口，采用10引脚MSOP封装

AD7992是一款12位、高速、低功耗、逐次逼近型ADC。这款器件采用2.7 V 至 5.5 V单电源供电，转换时间为2 µs。器件内置双通道多路复用器与跟踪/保持放大器。AD7992提供双线串行接口，与I²C接口兼容。这款器件提供AD7992-0与AD7992-1两个版本，每个版本均支持两个不同I²C地址的最小化。AD7992-0支持标准与快速I²C接口模式，而AD7992-1则支持标准、快速，以及两个高速I²C接口模式。

AD7992 特性

• 12位ADC具有快速转换时间：2 µs
• 两个单端模拟输入通道
• 额定电压(VDD)：2.7 V 至 5.5 V
• 低功耗
• 快速吞吐率：188 kSPS
• 时序控制器操作
• 自动循环模式
• I²C® 兼容串行接口
• I²C® 接口支持：标准、快速，以及高速模式
• 超出范围指示
• 通过AS进行引脚选择寻址
• 自动关断模式：最大-1 µA

AD7992 技术指标

• Resolution (Bits): 12bit
• # Chan: 2
• Sample Rate: 79kSPS
• Interface: I²C/Ser 2-Wire,Ser
• Analog Input Type: SE-Uni
• Ain Range: Uni (Vref),Uni Vdd
• ADC Architecture: SAR
• Pkg Type: SOP

AD7992 建议配套产品

• Recommended Input Buffer Amplifiers for the AD7992
  • For low distortion, low noise, dual supplies, we recommend the AD8599.
  • For precision, low noise, single supply, we recommend the AD8605 family of operational amplifiers.
  • For single supply, high speed, low power, we suggest the AD8031 or the dual AD8032.
  • For precision, high speed, low cost, we recommend the quad AD8604.
• Recommended External References - 2.5V for the AD7992
  • For applications requiring best accuracy, low noise, low drift, we recommend the ADR421 or AD780.
  • For low noise, high output current applications, we recommend the ADR431.
  • For wide supply applications, we recommend the ADR03 or AD780.
  • For cost sensitive applications, we suggest the AD1582, ADR381 or ADR391.
  • For the reference buffer amplifier, we recommend the AD8605.
  • For applications requiring 2.048V to 4.096V, we recommend the REF191 reference family.
• Recommended Digital Isolators for the AD7992
  • For dual I²C isolators, we recommend the ADuM1250, ADuM1251, ADuM2250 or the ADuM2251.
• Recommended Power Solutions
  • For selecting voltage regulator products, use ADIsimPower.
  • For selecting supervisor products, use the Supervisor Parametric Search.

AD7992功能框图

AD7992 芯片订购指南

产品型号	产品状态	封装	Pins	温度范围	ROHS Compilant
AD7992BRM-0	Prodn	10 ld MSOP	10	Ind	N Material Declaration
AD7992BRM-0REEL	Prodn	10 ld MSOP	10	Ind	N Material Declaration
AD7992BRM-1	Prodn	10 ld MSOP	10	Ind	N Material Declaration
AD7992BRM-1REEL	Prodn	10 ld MSOP	10	Ind	N Material Declaration
AD7992BRMZ-0	Prodn	10 ld MSOP	10	Ind	Y Material Declaration
AD7992BRMZ-0REEL	Prodn	10 ld MSOP	10	Ind	Y Material Declaration
AD7992BRMZ-1	Prodn	10 ld MSOP	10	Ind	Y Material Declaration
AD7992BRMZ-1REEL	Prodn	10 ld MSOP	10	Ind	Y Material Declaration

AD7992 应用技术支持与电子电路设计开发资源下载

1. AD7992 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