DAC9881 20 位 Δ-Σ 低功耗数模转换器

DAC9881 说明

The DAC9881 is an 18-bit, single-channel, voltage-output digital-to-analog converter (DAC). It features 18-bit monotonicity, excellent linearity, very low-noise, and fast settling time. The on-chip precision output amplifier allows rail-to-rail output swing to be achieved over the full supply range of 2.7V to 5.5V.

The device supports a standard SPI serial interface capable of operating with input data clock frequencies up to 50MHz. The DAC9881 requires an external reference voltage to set the output range of the DAC channel. A programmable power-on reset circuit is also incorporated into the device to ensure that the DAC output powers up at zero-scale or midscale, and remains there until a valid write command.

Additionally, the DAC9881 has the capability to function in either unipolar straight binary or twos complement mode.

DAC8830 DAC8831 DAC8832 DAC8881 DAC9881
Resolution(Bits) 16   16   16   16   18  
DAC: Channels 1   1   1   1   1  
Settling Time(µs) 1   1   1   5   5  
Sample / Update Rate(MSPS) 1   2        
Interface Serial SPI   Serial SPI   Serial SPI   Serial SPI   Serial SPI  
Output Type Voltage   Voltage   Voltage   Voltage   Voltage  
Output Range Min.(V or mA) 0   -5.5   -5.5   0   0  
Output Range Max.(V or mA) 5.5   5.5   5.5   5.5   5.5  
Single/Dual Analog Supply         Single  
DNL(Max)(+/-LSB) 1   1   1   1   1  
INL(Max)(+/-LSB) 1   1   1   1   2  
INL (+/-)(Max)(%) 0.0015   0.0015   0.0015   0.0015    
Monotonicity 16   16   16   16   18  
Power Consumption(Typ)(mW) 0.015   0.015   0.015   6   6  
Architecture R-2R   R-2R   R-2R   R-2R   R-2R  
Reference: Type Ext   Ext   Ext   Ext   Ext  
Analog Voltage AV/DD(Min)(V) 2.7   2.7   2.7   2.7   2.7  
Analog Voltage AV/DD(Max)(V) 5.5   5.5   5.5   5.5   5.5  
Logic Voltage DV/DD(Min)(V) 2.7   2.7   2.7   2.7   1.7  
Logic Voltage DV/DD(Max)(V) 5.5   5.5   5.5   5.5   5.5  
No. of Supplies (Unipolar) 1   1   1   1   1  
No. of Supplies (Bipolar)   1        
Rating Catalog   Catalog   Catalog   Catalog   Catalog  
Pin/Package 8SOIC   14SOIC, 14VQFN   14VQFN   24VQFN   24VQFN  
Approx. Price (US$) 7.95 | 1ku   7.95 | 1ku   7.95 | 1ku   8.00 | 1ku   16.90 | 1ku  
Thermal Shutdown No   No   No   No   No  
Operating Temperature Range(°C) -40 to 85   -40 to 85   -40 to 85   -40 to 105   -40 to 105
DAC9881 特性
DAC9881 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
DAC9881SBRGER ACTIVE -40 to 105 24.90 | 1ku VQFN (RGE) | 24 3000 | LARGE T&R DAC
9881
B
DAC9881SBRGERG4 ACTIVE -40 to 105 24.90 | 1ku VQFN (RGE) | 24 3000 | LARGE T&R DAC
9881
B
DAC9881SBRGET ACTIVE -40 to 105 25.90 | 1ku VQFN (RGE) | 24 250 | SMALL T&R DAC
9881
B
DAC9881SBRGETG4 ACTIVE -40 to 105 25.90 | 1ku VQFN (RGE) | 24 250 | SMALL T&R DAC
9881
B
DAC9881SRGER ACTIVE -40 to 105 16.90 | 1ku VQFN (RGE) | 24 3000 | LARGE T&R DAC
9881
B
DAC9881SRGERG4 ACTIVE -40 to 105 16.90 | 1ku VQFN (RGE) | 24 3000 | LARGE T&R DAC
9881
B
DAC9881SRGET ACTIVE -40 to 105 17.90 | 1ku VQFN (RGE) | 24 250 | SMALL T&R DAC
9881
B
DAC9881SRGETG4 ACTIVE -40 to 105 17.90 | 1ku VQFN (RGE) | 24 250 | SMALL T&R DAC
9881
B
DAC9881 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
DAC9881SBRGER Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR   DAC9881SBRGER
DAC9881SBRGERG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR DAC9881SBRGERG4 DAC9881SBRGERG4
DAC9881SBRGET Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR   DAC9881SBRGET
DAC9881SBRGETG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR DAC9881SBRGETG4 DAC9881SBRGETG4
DAC9881SRGER Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR   DAC9881SRGER
DAC9881SRGERG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR DAC9881SRGERG4 DAC9881SRGERG4
DAC9881SRGET Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR   DAC9881SRGET
DAC9881SRGETG4 Green (RoHS & no Sb/Br)  CU NIPDAU  Level-2-260C-1 YEAR DAC9881SRGETG4 DAC9881SRGETG4
DAC9881 应用技术支持与电子电路设计开发资源下载
  1. DAC9881 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. A Spreadsheet for Calculating the Frequency Response of the ADS1250-54 (PDF 461 KB)
  8. A Spreadsheet for Calculating the Frequency Response of the ADS1250-54
  9. Understanding the ADS1251, ADS1253, and ADS1254 Input Circuitry (PDF 39 KB)
  10. Analog-to-Digital Converter Grounding Practices Affect System Performance (PDF 56 KB)
  11. Principles of Data Acquisition and Conversion (PDF 50 KB)
  12. Interleaving Analog-to-Digital Converters (PDF 64 KB)
  13. What Designers Should Know About Data Converter Drift (PDF 95 KB)
  14. Giving Delta-Sigma Converters a Gain Boost with a Front End Analog Gain Stage (PDF 70 KB)
  15. Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters (PDF 105 KB)
DAC9881 工具与软件
名称 型号 公司 工具/软件类型
DXP DAC 操作器程序 DXP Texas Instruments 分析软件
DAC9881 评估模块 DAC9881EVM Texas Instruments 开发电路板/EVM