ADS6445
- 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
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. The ADS644X also includes the traditional 1-wire interface that can be used at lower sampling frequencies.
An internal phase lock loop (PLL) multiplies the incoming ADC sampling clock to derive the bit clock. The bit clock is used to serialize the 14-bit data from each channel. In addition to the serial data streams, the frame and bit clocks are also transmitted as LVDS outputs.
The LVDS output buffers have features such as programmable LVDS currents, current doubling modes and internal termination options. These can be used to widen eye-openings and improve signal integrity, easing capture by the receiver.
The ADC channel outputs can be transmitted either as MSB or LSB first and 2s complement or straight binary.
The ADS644X has internal references, but can also support an external reference mode. The device is specified over the industrial temperature range (–40°C to 85°C).
技术文档
设计和开发
如需其他信息或资源,请查看下方列表,点击标题即可进入详情页面。
DATACONVERTERPRO-SW — High Speed Data Converter Pro 软件
用户可以为 DATACONVERTERPRO-SW 提供定制模式,以加载到 TI 数模转换器 (DAC)。支持从模数转换器 (ADC) 采集内导出 CSV (...)
PSPICE-FOR-TI — 适用于 TI 设计和模拟工具的 PSpice®
借助 PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。
在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
封装 | 引脚数 | 下载 |
---|---|---|
VQFN (RGC) | 64 | 了解详情 |
订购和质量
- RoHS
- REACH
- 器件标识
- 引脚镀层/焊球材料
- MSL 等级/回流焊峰值温度
- MTBF/时基故障估算
- 材料成分
- 认证摘要
- 持续可靠性监测