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Analog Devices Inc. AD5371 40通道电压输出型DAC

Analog Devices AD5371 40通道、14位、串行输入、电压输出型DAC具有四倍于基准电压的缓冲电压输出。每个通道都有一个可编程增益寄存器和一个失调调整寄存器。设计人员可单独调整每个DAC的增益和失调，以去除误差。为进一步提高灵活性，该器件可分为五组，每组八个DAC。三个失调DAC可让设计人员调整每组的输出范围。AD5371 DAC可在宽电源电压范围（VSS为-16.5V至-4.5V，VDD为9V至16.5V）内稳定工作。负载电流为1mA时，输出放大器的裕量需求为1.4V。AD5371具有与SPI、QSPI™、MICROWIRE™和DSP接口标准兼容的高速串行接口，能够处理高达50MHz的时钟速率。AD5371 DAC还包含一个100MHz的低压差分信号 (LVDS) 串行接口。这些器件在接收新数据时更新DAC寄存器。

The Analog Devices AD5371's high-speed serial interface is compatible with SPI, QSPI™, MICROWIRE™, and DSP interface standards, and can handle clock speeds of up to 50MHz. AD5371 DACs also include a 100MHz low-voltage differential signaling (LVDS) serial interface. The devices update the DAC registers on the reception of new data.

特性

  • 40-channel DAC in 80-lead LQFP and 100-ball CSP_BGA
  • Guaranteed monotonic to 14-bits
  • Maximum output voltage span of 4 × VREF (20V)
  • Nominal output voltage span of -4V to 8V
  • Multiple, independent output voltage spans available
  • System calibration function allowing user-programmable offset and gain
  • Channel grouping and addressing features
  • Thermal shutdown function
  • DSP/microcontroller-compatible serial interface
  • SPI/LVDS serial interface
  • 2.5V to 5.5V digital interface
  • Digital reset (RESET)
  • Clear function to user-defined SIGGNDx
  • Simultaneous update of DAC outputs

应用

  • Level setting in Automatic Test Equipment (ATE)
  • Variable Optical Attenuators (VOA)
  • Optical switches
  • Industrial control systems
  • Instrumentation

Block Diagram

框图 - Analog Devices Inc. AD5371 40通道电压输出型DAC
发布日期: 2017-09-30 | 更新日期: 2022-04-26