ADS6425 Low power monolithic 4-channel, 12-bit 125MSPS ADC

The ADS6425 is a high performance 12-bit, 125-MSPS quad channel ADC. 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 a 3.5 dB 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's 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. The ADS6425 also includes the traditional 1-wire interface that can be used at lower sampling frequencies.

	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 Temperature Range(°C)	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85	-40 to 85

ADS6425 特性

• Maximum Sample Rate: 125 MSPS
• 12-Bit Resolution with No Missing Codes
• 1.65-W Total Power
• Simultaneous Sample and Hold
• 70.3 dBFS SNR at Fin = 50 MHz
• 83 dBc SFDR at Fin = 50 MHz, 0 dB Gain
• 79 dBc SFDR at Fin = 170 MHz, 3.5 dB Gain
• 3.5 dB Coarse Gain and up to 6 dB 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 Differential
• 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 14-Bit Family (ADS644X - SLAS532)
• APPLICATIONS
  • Base-Station IF Receivers
  • Diversity Receivers
  • Medical Imaging
  • Test Equipment

ADS6425 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
ADS6425IRGC25	ACTIVE	-40 to 85	73.60 | 1ku	VQFN (RGC) | 64	25 | SMALL T&R	AZ6425
ADS6425IRGCR	ACTIVE	-40 to 85	68.60 | 1ku	VQFN (RGC) | 64	2000 | LARGE T&R	AZ6425
ADS6425IRGCRG4	ACTIVE	-40 to 85	68.60 | 1ku	VQFN (RGC) | 64	2000 | LARGE T&R	AZ6425
ADS6425IRGCT	ACTIVE	-40 to 85	69.60 | 1ku	VQFN (RGC) | 64	250 | SMALL T&R	AZ6425
ADS6425IRGCTG4	ACTIVE	-40 to 85	69.60 | 1ku	VQFN (RGC) | 64	250 | SMALL T&R	AZ6425

ADS6425 工具与软件

名称	型号	公司	工具/软件类型
ADS6425 评估模块	ADS6425EVM	Texas Instruments	开发电路板/EVM
ADC 谐波计算器	ADC-HARMONIC-CALC	Texas Instruments	计算实用程序
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

ADS6425 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
ADS6425IRGC25	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	ADS6425IRGC25	ADS6425IRGC25
ADS6425IRGCR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	ADS6425IRGCR	ADS6425IRGCR
ADS6425IRGCRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	ADS6425IRGCRG4	ADS6425IRGCRG4
ADS6425IRGCT	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	ADS6425IRGCT	ADS6425IRGCT
ADS6425IRGCTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-3-260C-168 HR	ADS6425IRGCTG4	ADS6425IRGCTG4

ADS6425 应用技术支持与电子电路设计开发资源下载

1. ADS6425 数据资料 dataSheet 下载.PDF
2. TI 德州仪器仪ADC 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)