首页 > TI 德州仪器 > 数模转换器

DAC7643 具有内部参考的 16 位单通道并行接口

DAC7643 同类产品
DAC7643 说明

The DAC7642 and DAC7643 are dual channel, 16-bit, voltage output Digital-to-Analog Converters (DACs) which provide 15-bit monotonic performance over the specified temperature range. They accept 16-bit parallel input data, have double-buffered DAC input logic (allowing simultaneous update of all DACs), and provide a readback mode of the internal input registers. Programmable asynchronous reset clears all registers to a mid-scale code of 8000H (DAC7642) or to a zero-scale code of 0000H (DAC7643). These DACs can operate from a single +5V supply or from +5V and –5V supplies, providing an output range of 0 to +2.5V or –2.5V to +2.5V, respectively.

Low power and small size per DAC make the DAC7642 and DAC7643 ideal for automatic test equipment, DAC-per-pin programmers, data acquisition systems, and closed-loop servo-control.


DAC7641 DAC7642 DAC7643 DAC7644 DAC7742
Resolution(Bits) 16 16 16 16 16
DAC: Channels 1 2 2 4 1
Settling Time(us) 10 10 10 10 5
Sample / Update Rate(MSPS) 0.1 0.1 0.1 0.1 0.2
Interface Parallel Parallel Parallel Parallel Parallel
Output Type Voltage Voltage Voltage Voltage Voltage
Output Range Min.(V or mA) -2.5 -2.5 -2.5 -2.5 -10
Output Range Max.(V or mA) 2.5 2.5 2.5 2.5 10
Single/Dual Analog Supply +/- or + +/- or + +/- or + +/- or + +/-
DNL(Max)(+/-LSB) 2 2 2 2 1
INL(Max)(+/-LSB) 3 3 3 3 3
INL (+/-)(Max)(%) 0.005 0.005 0.005 0.005 0.005
Monotonicity 15 15 15 15 16
Power Consumption(Typ)(mW) 1.8 2.5 2.5 7.5 100
Architecture R-2R R-2R R-2R R-2R R-2R
Reference: Type Ext Ext Ext Ext Int/Ext
Analog Voltage AV/DD(Min)(V) 4.75 4.75 4.75 4.75 14.25
Analog Voltage AV/DD(Max)(V) 5.25 5.25 5.25 5.25 15.75
Logic Voltage DV/DD(Min)(V) 4.75 4.75 4.75 4.75 4.75
Logic Voltage DV/DD(Max)(V) 5.25 5.25 5.25 5.25 5.25
No. of Supplies (Unipolar) 1 1 1 1
No. of Supplies (Bipolar) 2 2 2 2 3
Rating Catalog Catalog Catalog Catalog Catalog
Pin/Package 32TQFP 32LQFP 32LQFP 48SSOP 48LQFP
Approx. Price (US$) 8.70 | 1ku 14.55 | 1ku 14.55 | 1ku 19.95 | 1ku 11.90 | 1ku
Thermal Shutdown No No No No No
Operating Temperature Range(°C) -40 to 85 -40 to 85 -40 to 85 -40 to 85 -40 to 85
DAC7643 特性
DAC7643 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
DAC7643VFBR ACTIVE -40 to 85 15.30 | 1ku LQFP (VF) | 32 1000 | LARGE T&R DAC7643
B
DAC7643VFBRG4 ACTIVE -40 to 85 15.30 | 1ku LQFP (VF) | 32 1000 | LARGE T&R DAC7643
B
DAC7643VFT ACTIVE -40 to 85 14.55 | 1ku LQFP (VF) | 32 250 | SMALL T&R DAC7643
B
DAC7643VFTG4 ACTIVE -40 to 85 14.55 | 1ku LQFP (VF) | 32 250 | SMALL T&R DAC7643
B
DAC7643 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
DAC7643VFBR Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   DAC7643VFBR
DAC7643VFBRG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM DAC7643VFBRG4 DAC7643VFBRG4
DAC7643VFT Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM   DAC7643VFT
DAC7643VFTG4 Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIM DAC7643VFTG4 DAC7643VFTG4
DAC7643 应用技术支持与电子电路设计开发资源下载
  1. DAC7643 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)
DAC7643 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