AD7549 12-Bit、双通道、乘法、IOUT DAC

AD7549是一款单芯片、双通道、12-Bit电流输出DAC。它采用0.3"宽、20引脚DIP和20引脚表面贴装两种封装。两个DAC均提供四象限乘法功能,每个DAC均具有单独的基准电压输入和反馈电阻。单芯片结构则可确保两个DAC之间具有出色的散热跟踪和增益误差跟踪特性。

AD7549中的各DAC均以三个4比特半字节格式载入数据。控制逻辑专为处理器轻松接口而设计。输入和DAC寄存器加载利用地址线路A0、A1、A2与/CS、/WR线路完成。CLR输入上的逻辑高电平将使所有寄存器清零。利用/UPD输入可以同时更新两个DAC。

产品特点和性能优势
  • 两个双缓冲12位DAC
  • 四象限乘法
  • 低增益误差(最大值为3 LSB)
  • DAC梯形电阻匹配:1%
  • 超小型DIP和表面贴装封装,节省空间
  • 无闩锁现象
  • 可在扩展温度范围内工作
数模转换器 (DAC)
数据手册
文档备注
AD7549: LC2MOS Dual 12-Bit µP-Compatible DAC Scanned Data Sheet (Rev. A)PDF 495 kB
AD7549: Military Data Sheet
应用笔记
文档备注
AN-912: 用平衡电流输出DAC驱动中心抽头变压器[中文版] (Rev. 0)PDF 363 kB
AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC (Rev. 0)PDF 246 kB
AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1PDF 1295 kB
AN-326: Interfacing the AD7549 to the MCS-48 and MCS-51 Microcomputer FamiliesPDF 334 kB
AN-325: 12-Bit Analog I/O Port Uses AD7549 Dual 12-Bit DAC and 8051 MicrocomputerPDF 318 kB
AN-137: A Digitally Programmable Gain and Attenuation Amplifier DesignPDF 52 kB
AN-206: CMOS Multiplying DAC Based Panning Circuit Provides Almost Constant Output PowerPDF 142 kB
AN-209: 8th Order Programmable Low-Pass Analog Filter Using Dual 12-Bit CMOS Multiplying DACsPDF 401 kB
AN-225: 12-Bit Voltage-Output DACs for Single-Supply 5V and 12V SystemsPDF 237 kB
订购信息
产品型号封装包装数量温度范围美金报价 100-499美金报价 1000+RoHS
5962-8876501RX 最后一次采购CERDIP GLASS SEALOTH 18-55 至 125至00N
5962-8876502RX 量产CERDIP GLASS SEALOTH 18-55 至 125至157.65142.53N
AD7549BQ 量产CERDIP GLASS SEALOTH 18-40 至 85至32.9829.7N
AD7549JN 量产20 ld PDIPOTH 18-40 至 85至29.5424.79N
AD7549JNZ 量产20 ld PDIPOTH 18-40 至 85至26.8522.54Y
AD7549JP 最后一次采购20 ld PLCCOTH 49-40 至 85至00N
AD7549JPZ 量产20 ld PLCCOTH 49-40 至 85至29.1923.6Y
AD7549JPZ-REEL 量产20 ld PLCCREEL 1000-40 至 85至023.6Y
AD7549KN 量产20 ld PDIPOTH 18-40 至 85至00N
AD7549KNZ 量产20 ld PDIPOTH 18-40 至 85至34.1228.6Y
AD7549KPZ 量产20 ld PLCCOTH 49-40 至 85至35.5528.38Y
参考资料
AD7549: LC2MOS Dual 12-Bit µP-Compatible DAC Scanned Data Sheet (Rev. A) ad7549
AD7549: Military Data Sheet ad7549
AN-912: 用平衡电流输出DAC驱动中心抽头变压器[中文版] (Rev. 0) ad7524
AN-912: Driving a Center-Tapped Transformer with a Balanced Current-Output DAC (Rev. 0) ad7524
AN-320A: CMOS Multiplying DACs and Op Amps Combine to Build Programmable Gain Amplifier, Part 1 ad7524
AN-326: Interfacing the AD7549 to the MCS-48 and MCS-51 Microcomputer Families ad7549
AN-325: 12-Bit Analog I/O Port Uses AD7549 Dual 12-Bit DAC and 8051 Microcomputer ad7549
AN-137: A Digitally Programmable Gain and Attenuation Amplifier Design ad7524
AN-206: CMOS Multiplying DAC Based Panning Circuit Provides Almost Constant Output Power ad7528
AN-209: 8th Order Programmable Low-Pass Analog Filter Using Dual 12-Bit CMOS Multiplying DACs ad7549
AN-225: 12-Bit Voltage-Output DACs for Single-Supply 5V and 12V Systems ad7542
Digital to Analog Converters ICs Solutions Bulletin ad5590