DAC2902 双路 12 位 125Msps 数模转换器



	DAC2902
Resolution(Bits)	12
DAC: Channels	2
Settling Time(us)	0.03
Sample / Update Rate(MSPS)	125
Interface	Parallel
Output Type	Current
Output Range Min.(V or mA)	2
Output Range Max.(V or mA)	20
Single/Dual Analog Supply	+
DNL(Max)(+/-LSB)	2.5
INL(Max)(+/-LSB)	3
SNR(Typ)(dB)	68
SFDR(Typ)(dB)	81
Power Consumption(Typ)(mW)	310
Architecture	I-steering
Reference: Type	Int/Ext
Analog Voltage AV/DD(Min)(V)	3
Analog Voltage AV/DD(Max)(V)	5.5
Logic Voltage DV/DD(Min)(V)	3
Logic Voltage DV/DD(Max)(V)	5.5
Rating	Catalog
Pin/Package	48TQFP
Approx. Price (US$)	14.25 | 1ku
Thermal Shutdown	No
Operating Temperature Range(°C)	-40 to 85

DAC2902 说明

The DAC2902 is a monolithic, 12-bit, dual-channel, high-speed Digital-to-Analog Converter (DAC), and is optimized to provide high dynamic performance while dissipating only 310mW.

Operating with high update rates of up to 125MSPS, the DAC2902 offers exceptional dynamic performance, and enables the generation of very-high output frequencies suitable for "Direct IF" applications. The DAC2902 has been optimized for communications applications in which separate I and Q data are processed while maintaining tight gain and offset matching.

Each DAC has a high-impedance differential-current output, suitable for single-ended or differential analog-output configurations.

The DAC2902 combines high dynamic performance with a high throughput rate to create a cost-effective solution for a wide variety of waveform-synthesis applications:

• Pin compatibility between family members provides 10-bit (DAC2900), 12-bit (DAC2902), and 14-bit (DAC2904) resolution.

DAC2902 特性

• 125MSPS UPDATE RATE
• SINGLE SUPPLY: +3.3V or +5V
• HIGH SFDR: 70dB at fOUT = 20MHz
• LOW GLITCH: 2pVs
• LOW POWER: 310mW
• INTERNAL REFERENCE
• POWER-DOWN MODE: 23mW
• APPLICATIONS
  • COMMUNICATIONS:
    Base Stations, WLL, WLAN
    Baseband I/Q Modulation
  • MEDICAL/TEST INSTRUMENTATION
  • ARBITRARY WAVEFORM GENERATORS (ARB)
  • DIRECT DIGITAL SYNTHESIS (DDS)

DAC2902 芯片订购指南

器件	状态	温度 (oC)	价格（美元） | Quantity	封装 | 引脚	封装数量 | 封装载体	丝印标记
DAC2902Y/1K	ACTIVE	-40 to 85	14.25 | 1ku	TQFP (PFB) | 48	1000 | LARGE T&R	DAC2902Y
DAC2902Y/1KG4	ACTIVE	-40 to 85	14.25 | 1ku	TQFP (PFB) | 48	1000 | LARGE T&R	DAC2902Y
DAC2902Y/250	ACTIVE	-40 to 85	15.40 | 1ku	TQFP (PFB) | 48	250 | SMALL T&R	DAC2902Y
DAC2902Y/250G4	ACTIVE	-40 to 85	15.40 | 1ku	TQFP (PFB) | 48	250 | SMALL T&R	DAC2902Y

DAC2902 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
DAC2902Y/1K	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR		DAC2902Y/1K
DAC2902Y/1KG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	DAC2902Y/1KG4	DAC2902Y/1KG4
DAC2902Y/250	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR		DAC2902Y/250
DAC2902Y/250G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	DAC2902Y/250G4	DAC2902Y/250G4

DAC2902 应用技术支持与电子电路设计开发资源下载

1. DAC2902 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)

DAC2902 工具与软件

名称	型号	公司	工具/软件类型
DAC2902 评估模块	DAC2902EVM	Texas Instruments	开发电路板/EVM
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