ADS6445 具有串行 LVDS 输出的四路 14 位 125MSPS ADC
The ADS6445/ADS6444/ADS6443/ADS6442 (ADS644X) is a family of high performance 14-bit 125/105/80/65 MSPS quad channel A-D converters. Serial LVDS data outputs reduce the number of interface lines, resulting in a compact 64-pin QFN package (9 mm × 9 mm) that allows for high system integration density. The device includes 3.5dB coarse gain option that can be used to improve SFDR performance with little degradation in SNR. In addition to the coarse gain, fine gain options also exist, programmable in 1dB steps up to 6dB.
The output interface is 2-wire, where each ADC data is serialized and output over two LVDS pairs. This makes it possible to halve the serial data rate (compared to a 1-wire interface) and restrict it to less than 1Gbps easing receiver design.
|
ADS6422 |
ADS6423 |
ADS6424 |
ADS6425 |
ADS6442 |
ADS6443 |
ADS6444 |
ADS6445 |
| Resolution(Bits) |
12 |
12 |
12 |
12 |
14 |
14 |
14 |
14 |
| Sample Rate (max) |
65MSPS |
80MSPS |
105MSPS |
125MSPS |
65MSPS |
80MSPS |
105MSPS |
125MSPS |
| Architecture |
Pipeline |
Pipeline |
Pipeline |
Pipeline |
Pipeline |
Pipeline |
Pipeline |
Pipeline |
| Power Consumption(Typ)(mW) |
1050 |
1180 |
1350 |
1650 |
1050 |
1180 |
1350 |
1680 |
| SINAD(dB) |
71 |
70.9 |
70 |
70 |
73.7 |
73.5 |
72 |
72.3 |
| SNR(dB) |
71 |
70.9 |
70.6 |
70.5 |
74 |
73.8 |
73 |
73.2 |
| SFDR(dB) |
88 |
87 |
81 |
83 |
88 |
87.5 |
81 |
83 |
| DNL(Max)(+/-LSB) |
0.5 |
1.8 |
2 |
2 |
0.5 |
2 |
2.5 |
2.5 |
| INL(Max)(+/-LSB) |
2 |
2 |
2.5 |
2.5 |
4.5 |
4.5 |
5 |
5 |
| No Missing Codes(Bits) |
12 |
12 |
12 |
12 |
14 |
14 |
14 |
14 |
| ENOB(Bits) |
11.5 |
11.5 |
11.4 |
11.4 |
12 |
11.9 |
11.7 |
11.7 |
| No. of Supplies |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
| Analog Voltage AV/DD(Min)(V) |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
| Analog Voltage AV/DD(Max)(V) |
3.6 |
3.6 |
3.6 |
3.6 |
3.6 |
3.6 |
3.6 |
3.6 |
| Logic Voltage DV/DD(Min)(V) |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
3.0 |
| Logic Voltage DV/DD(Max)(V) |
3.6 |
3.6 |
3.6 |
3.6 |
3.6 |
3.6 |
3.6 |
3.3 |
| Input Configuration Range |
2V (p-p) |
2V (p-p) |
2V (p-p) |
2V (p-p) |
2V (p-p) |
2V (p-p) |
2V (p-p) |
2V (p-p) |
| Reference Mode |
Int and Ext |
Int and Ext |
Int and Ext |
Int and Ext |
Int and Ext |
Int and Ext |
Int and Ext |
Int and Ext |
| Rating |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
Catalog |
| Pin/Package |
64VQFN |
64VQFN |
64VQFN |
64VQFN |
64VQFN |
64VQFN |
64VQFN |
64VQFN |
| # Input Channels |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
| Operating Temp Range(Celsius) |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
-40 to 85 |
ADS6445 特性
- Maximum Sample Rate: 125 MSPS
- 14-Bit Resolution with No Missing Codes
- Simultaneous Sample and Hold
- 3.5dB Coarse Gain and up to 6dB Programmable Fine Gain for SFDR/SNR Trade-Off
- Serialized LVDS Outputs with Programmable Internal Termination Option
- Supports Sine, LVCMOS, LVPECL, LVDS Clock Inputs and Amplitude down to 400 mVPP
- Internal Reference with External Reference Support
- No External Decoupling Required for References
- 3.3-V Analog and Digital Supply
- 64 QFN Package (9 mm × 9 mm)
- Pin Compatible 12-Bit Family (ADS642X - SLAS532A)
- Feature Compatible Dual Channel Family (ADS624X - SLAS542A, ADS644X - SLAS543A)
- APPLICATIONS
- Base-Station IF Receivers
- Diversity Receivers
- Medical Imaging
- Test Equipment
ADS6445 芯片订购指南
ADS6445 工具与软件
| 名称 |
型号 |
公司 |
工具/软件类型 |
| ADS6445 评估模块 |
ADS6445EVM |
Texas Instruments |
开发电路板/EVM |
| 用于模数转换器的抗混淆计算工具 |
ANTIALIASINGCALC |
Texas Instruments |
计算实用程序 |
| 运算放大器至 ADC 电路拓扑计算器 |
ADC-INPUT-CALC |
Texas Instruments |
计算实用程序 |
ADS6445 质量与无铅数据
ADS6445 应用技术支持与电子电路设计开发资源下载
- ADS6445 数据资料 dataSheet 下载.PDF
- TI 德州仪器仪ADC 模数转换器产品选型与价格 . xls
- 模数规格和性能特性术语表 (Rev. A) (PDF 1993 KB)
- 所选封装材料的热学和电学性质 (PDF 645 KB)
- 高速数据转换 (PDF 1967 KB)
- Shelf-Life Evaluation of Lead-Free Component Finishes (PDF
1305 KB)
- A
Spreadsheet for Calculating the Frequency Response of the ADS1250-54 (PDF
461 KB)
- A Spreadsheet for Calculating the Frequency Response of the
ADS1250-54
- Understanding the ADS1251, ADS1253, and ADS1254 Input
Circuitry (PDF 39 KB)
- Analog-to-Digital Converter Grounding Practices Affect System
Performance (PDF 56 KB)
- Principles of Data Acquisition and Conversion (PDF 50 KB)
- Interleaving Analog-to-Digital Converters (PDF 64 KB)
- What
Designers Should Know About Data Converter Drift (PDF 95 KB)
- Giving Delta-Sigma Converters a Gain Boost with a Front End
Analog Gain Stage (PDF 70 KB)
- Programming Tricks for Higher Conversion Speeds Utilizing Delta
Sigma Converters (PDF 105 KB)