Analog Devices Inc. AD7091R 超低功耗12位ADC

Analog Devices AD7091R超低功耗12位ADC是一款12位逐次逼近模数转换器(ADC),可在高吞吐速率(50MHz SCLK时为1MSPS)下实现超低功耗(3V和1MSPS时典型值为349μA)。AD7091R采用2.7V至5.25V单电源供电,内置一个宽带宽采样保持放大器,可处理7MHz以上的输入频率。它还具有一个片内转换时钟和高速串行接口。转换过程与数据采集利用CONVST信号和内部振荡器进行控制。AD7091R有一个串行接口,可在转换后读取数据,吞吐速率为1MSPS。AD7091R采用了先进的设计与处理技术,可在高吞吐速率下实现极低功耗。

特性

  • Fast throughput rate of 1MSPS
  • Specified for VDD of 2.7V to 5.25V
  • Logic voltage VDRIVE of 1.65V to 5.25V
  • INL of ±1 LSB maximum
  • Analog input range of 0V to VREF
  • Ultralow power
  • 349μA typical at 3V and 1MSPS
  • 264nA typical at 3V in power-down mode
  • Internal 2.5V reference, ±4.5ppm/°C typical drift
  • Wide input bandwidth
  • Flexible power/throughput rate management
  • High speed serial interface
  • SPI®/QSPI™/MICROWIRE™/DSP compatible
  • BUSY indicator
  • Power-down mode
  • 10-lead, 3mm × 2mm LFCSP and 10-lead MSOP packages
  • Temperature range of −40°C to +125°C

应用

  • Battery-powered systems
  • Handheld meters
  • Medical instruments
  • Mobile communications
  • Instrumentation and control systems
  • Data acquisition systems
  • Optical sensors
  • Diagnostic/monitoring functions
  • Energy harvesting