AD7547 双通道12位CMOS DAC，采用并行加载输入结构

AD7547在单芯片上集成两个12位电流输出DAC，内置电平转换器、数据寄存器和控制逻辑，可以与微处理器轻松接口。它有12路数据输入CSA、CSB、WR控制DAC选择与加载。数据在WR上升沿锁存至DAC寄存器中。该器件与大多数微处理器速度兼容，并且接受TTL、74HC和5V CMOS逻辑电平输入。

该数模转换器提供四象限乘法功能，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出色的散热和增益误差跟踪特性。在整个温度范围内，两个DAC均能保证12位单调性。

AD7547采用线性兼容CMOS (LC²MOS)工艺制造，因而能够在同一芯片上实现快速数字逻辑与精密线性电路。

产品特点和性能优势
  • 一个封装中集成两个12位DAC
  • DAC梯形电阻匹配：0.5%
  • 超小型DIP和表面贴装封装，节省空间
  • 四象限乘法
  • 低增益误差（整个温度范围内最大值为1 LSB）
  • 快速接口定时
数模转换器 (DAC)
数据手册
文档备注
AD7547: Dual 12-Bit CMOS DAC with Parallel Load Input Structure Data Sheet (Rev. A)PDF 601 kB
AD7547: Military Data Sheet
应用笔记
文档备注
AN-214: Ground Rules for High Speed CircuitsPDF 356 kB
AN-348: Avoiding Passive-Component PitfallsPDF 931 kB
AN-348: 避开无源元件的陷阱PDF 931 kB
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-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
5962-89657023A 量产LCC:CER LEADLESS CHIP CARROTH 42-55 至 125至151.27103.27N
AD7547ACHIPS 量产CHIPS OR DIEREEL 10025至20.8320.83Y
AD7547JNZ 量产24 ld PDIPOTH 15-40 至 85至19.1116.06Y
AD7547JPZ 量产PLCC:PLASTIC LEAD CHIP CAROTH 39-40 至 85至19.4315.54Y
AD7547JPZ-REEL 量产PLCC:PLASTIC LEAD CHIP CARREEL 750-40 至 85至015.54Y
AD7547JR 量产24 ld SOIC - WideOTH 31-40 至 85至18.5515.58N
AD7547JR-REEL 量产24 ld SOIC - WideREEL 1000-40 至 85至015.58N
AD7547JRZ 量产24 ld SOIC - WideOTH 31-40 至 85至16.8614.16Y
AD7547JRZ-REEL 量产24 ld SOIC - WideREEL 1000-40 至 85至014.16Y
AD7547KN 量产24 ld PDIPOTH 15-40 至 85至24.6520.67N
AD7547KNZ 量产24 ld PDIPOTH 15-40 至 85至22.4118.79Y
AD7547KP 量产PLCC:PLASTIC LEAD CHIP CAROTH 39-40 至 85至26.2621.08N
AD7547KPZ 量产PLCC:PLASTIC LEAD CHIP CAROTH 39-40 至 85至23.8719.16Y
AD7547LNZ 量产24 ld PDIPOTH 15-40 至 85至30.3225.41Y
AD7547LP 量产PLCC:PLASTIC LEAD CHIP CAROTH 39-40 至 85至33.7627.46N
AD7547LPZ 最后一次采购PLCC:PLASTIC LEAD CHIP CAROTH 39-40 至 85至29.2323.76Y
AD7547LPZ-REEL 量产PLCC:PLASTIC LEAD CHIP CARREEL 750-40 至 85至022.63Y
AD7547LRZ 量产24 ld SOIC - WideOTH 31-40 至 85至26.7522.42Y
AD7547LRZ-REEL 量产24 ld SOIC - WideREEL 1000-40 至 85至022.42Y
参考资料
AD7547: Dual 12-Bit CMOS DAC with Parallel Load Input Structure Data Sheet (Rev. A) ad7547
AD7547: Military Data Sheet ad7547
AN-214: Ground Rules for High Speed Circuits ad1674
AN-348: Avoiding Passive-Component Pitfalls ad7813
AN-348: 避开无源元件的陷阱 adg901
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-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
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