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DAC7822 双路 12 位串行输入乘法 DAC

DAC7822 同类产品
DAC7822
Resolution(Bits) 12
DAC: Channels 2
Settling Time(us) 0.2
Sample / Update Rate(MSPS) 10
Interface Parallel
Output Type Current
Output Range Min.(V or mA) 0
Output Range Max.(V or mA) 1
DNL(Max)(+/-LSB) 1
INL(Max)(+/-LSB) 1
INL (+/-)(Max)(%) 0.0244
Monotonicity 12
Power Consumption(Typ)(mW) 0.0275
Architecture R-2R
Reference: Type Ext
Analog Voltage AV/DD(Min)(V) 2.5
Analog Voltage AV/DD(Max)(V) 5.5
Logic Voltage DV/DD(Min)(V) 2.7
Logic Voltage DV/DD(Max)(V) 5.5
No. of Supplies (Unipolar) 1
No. of Supplies (Bipolar) 1
Rating Catalog
Pin/Package 40WQFN
Approx. Price (US$) 3.80 | 1ku
Thermal Shutdown No
Operating Temperature Range(°C) -40 to 125
DAC7822 说明

The DAC7822 is a dual, CMOS, 12-bit, current output digital-to-analog converter (DAC). This device operates from a 2.5V to 5.5V power supply, making it suitable for battery-powered and many other applications.

The DAC7822 operates with a fast parallel interface. Data readback allows the user to read the contents of the DAC register via the DB pins. On power-up, the internal register and latches are filled with zeroes and the DAC outputs are at zero scale.

The DAC7822 offers excellent 4-quadrant multiplication characteristics, with large signal multiplying bandwidth of 10MHz. The applied external reference input voltage (VREF) determines the full-scale output current. An integrated feedback resistor (RFB) provides temperature tracking and full-scale voltage output when combined with an external current-to-voltage precision amplifier.

DAC7822 特性
DAC7822 芯片订购指南
器件 状态 温度 (oC) 价格（美元） 封装 | 引脚 封装数量 | 封装载体 丝印标记
DAC7822IRTAR ACTIVE -40 to 125 3.80 | 1ku WQFN (RTA) | 40 2000 | LARGE T&R DAC7822
DAC7822IRTARG4 ACTIVE -40 to 125 3.80 | 1ku WQFN (RTA) | 40 2000 | LARGE T&R DAC7822
DAC7822IRTAT ACTIVE -40 to 125 4.20 | 1ku WQFN (RTA) | 40 250 | SMALL T&R DAC7822
DAC7822IRTATG4 ACTIVE -40 to 125 4.20 | 1ku WQFN (RTA) | 40 250 | SMALL T&R DAC7822
DAC7822 质量与无铅数据
器件 环保计划* 铅/焊球涂层 MSL 等级/回流焊峰 环保信息与无铅 (Pb-free) DPPM / MTBF / FIT 率
DAC7822IRTAR Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   DAC7822IRTAR
DAC7822IRTARG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR DAC7822IRTARG4 DAC7822IRTARG4
DAC7822IRTAT Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR   DAC7822IRTAT
DAC7822IRTATG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR DAC7822IRTATG4 DAC7822IRTATG4
DAC7822 应用技术支持与电子电路设计开发资源下载
  1. DAC7822 数据资料 dataSheet 下载.PDF
  2. TI 德州仪器仪DAC 模数转换器产品选型与价格 . xls
  3. 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
  4. 所选封装材料的热学和电学性质 (PDF 645 KB)
  5. 高速数据转换 (PDF 1967 KB)
  6. Shelf-Life Evaluation of Lead-Free Component Finishes (PDF 1305 KB)
  7. Analog-to-Digital Converter Grounding Practices Affect System Performance (PDF 56 KB)
  8. Principles of Data Acquisition and Conversion (PDF 50 KB)
  9. Interleaving Analog-to-Digital Converters (PDF 64 KB)
  10. What Designers Should Know About Data Converter Drift (PDF 95 KB)
  11. Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (PDF 70 KB)
  12. Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (PDF 105 KB)
DAC7822 工具与软件
名称 型号 公司 工具/软件类型
针对 Code Composer Studio 的 DCPFREETOOL 软件插件 DCPFREETOOL Texas Instruments 实用程序/插件
MDACBufferPro Design Utility for Multiplying Digital to Analog Converter Design MDACBUFFERPRO Texas Instruments 应用软件