ADI AD9253四路14位125MSPS模数转换解决方案

ADI公司的AD9253是集成了取样保持电路的四路14位125MSPS模数转换器(ADC),具有低成本,低功耗,体积小和容易使用的特点,工作电压1.8V,125MSPS速率时每路功耗为110mW,SNR = 74 dB ,SFDR = 90 dBc和DNL = ±0.75 LSB,满功率模拟带宽650MHz,可编程输出分辨率,主要用在超声波图像仪,高速取样,正交和多功能无线电接收器以及测试设备.本文介绍了AD9253产品亮点和主要特性,功能框图,以及AD9253CE01A评估板主要特性,电路图和材料清单.
The AD9253 is a quad, 14-bit, 80 MSPS/105 MSPS/125 MSPS analog-to-digital converter (ADC) with an on-chip sample- and-hold circuit designed for low cost, low power, small size, and ease of use. The product operates at a conversion rate of up to 125 MSPS and is optimized for outstanding dynamic performance and low power in applications where a small package size is critical.
The ADC requires a single 1.8 V power supply and LVPECL-/ CMOS-/LVDS-compatible sample rate clock for full performance operation. No external reference or driver components are required for many applications.
The ADC automatically multiplies the sample rate clock for the appropriate LVDS serial data rate. A data clock output (DCO) for capturing data on the output and a frame clock output (FCO) for signaling a new output byte are provided. Individual-channel power-down is supported and typically consumes less than 2 mW when all channels are disabled. The ADC contains several features designed to maximize flexibility and minimize system cost, such  as programmable output clock and data alignment and digital test pattern generation. The available digital test patterns include built-in deterministic and pseudorandom patterns, along with custom user-defined test patterns entered via the serial port interface (SPI).
The AD9253 is available in a RoHS-compliant, 48-lead LFCSP. It is specified over the industrial temperature range of −40℃ to +85℃. This product is protected by a U.S. patent.
AD9253产品亮点:
Small Footprint. Four ADCs are contained in a small, space-saving package.