DAC1220 20 位 Δ-Σ 低功耗数模转换器

	DAC1220	DAC1221
Resolution(Bits)	20	16
DAC: Channels	1	1
Settling Time(us)	10000	2000
Sample / Update Rate(MSPS)	0.0005	0.0005
Interface	Serial SPI	Serial SPI
Output Type	Voltage	Voltage
Output Range Min.(V or mA)	0	0
Output Range Max.(V or mA)	5.5	2.8
DNL(Max)(+/-LSB)	1	1
INL(Max)(+/-LSB)	1	2
INL (+/-)(Max)(%)	0.0015	0.0031
Monotonicity	20	16
Power Consumption(Typ)(mW)	2.5	1.2
Architecture	Delta-sigma	Delta-sigma
Reference: Type	Ext	Ext
Analog Voltage AV/DD(Min)(V)	4.75	2.7
Analog Voltage AV/DD(Max)(V)	4.75	3.3
Logic Voltage DV/DD(Min)(V)	4.75	2.7
Logic Voltage DV/DD(Max)(V)	5.25	3.3
No. of Supplies (Unipolar)	1	1
Rating	Catalog	Catalog
Pin/Package	16SSOP/QSOP	16SSOP/QSOP
Approx. Price (US$)	7.15 | 1ku	6.60 | 1ku
Operating Temperature Range(°C)	-40 to 85	-40 to 85

DAC1220 说明

The DAC1220 is a 20-bit digital-to-analog (D/A) converter offering 20-bit monotonic performance over the specified temperature range. It utilizes delta-sigma technology to achieve inherently linear performance in a small package at very low power. The resolution of the device can be programmed to 20 bits for Full-Scale, settling to 0.003% within 15ms typical, or 16 bits for Full-Scale, settling to 0.012% within 2ms max. The output range is two times the external reference voltage. On-chip calibration circuitry dramatically reduces low offset and gain errors.

The DAC1220 features a synchronous serial interface; in single-converter applications, the serial interface can be accomplished with just two wires, allowing low-cost isolation

DAC1220 特性

• 20-Bit Monotonicity Ensured Over –40°C to +85°C
• Low Power: 2.5mW
• Voltage Output
• Settling Time: 2ms to 0.012%
• Maximum Linearity Error: ±0.0015%
• On-Chip Calibration
• APPLICATIONS
  • Process Control
  • ATE Pin Electronics
  • Closed-Loop Servo Control
  • Smart Transmitters
  • Portable Instruments

DAC1220 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
DAC1220E	ACTIVE	-40 to 85	7.85 | 1ku	SSOP/QSOP (DBQ) | 16	75 | TUBE	DAC 1220E
DAC1220E/2K5	ACTIVE	-40 to 85	7.15 | 1ku	SSOP/QSOP (DBQ) | 16	2500 | LARGE T&R	DAC 1220E
DAC1220E/2K5G4	ACTIVE	-40 to 85	7.15 | 1ku	SSOP/QSOP (DBQ) | 16	2500 | LARGE T&R	DAC 1220E
DAC1220EG4	ACTIVE	-40 to 85	7.85 | 1ku	SSOP/QSOP (DBQ) | 16	75 | TUBE	DAC 1220E

DAC1220 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
DAC1220E	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR		DAC1220E
DAC1220E/2K5	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR		DAC1220E/2K5
DAC1220E/2K5G4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	DAC1220E/2K5G4	DAC1220E/2K5G4
DAC1220EG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	DAC1220EG4	DAC1220EG4

DAC1220 应用技术支持与电子电路设计开发资源下载

1. DAC1220 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)

DAC1220 工具与软件

名称	型号	公司	工具/软件类型
DAC1220 评估模块	DAC1220EVM	Texas Instruments	开发电路板/EVM