TI ADS62P49 250MSPS 14位ADC评估方案

TI公司的ADS62Px9/x8系列是双路14位/12位A/D转换器,取样速率高达250MSPS,具有高动态范围和低功耗特性,在250MSPS时的功耗为1.25W,串扰为90dB,非常适合用于多载波宽带通信设备.本文介绍了ADS62Px9/x8系列的主要特性,方框图, 模拟输入电路图, 低输入频率, 高输入频率和大于300MHz的驱动电路图.此外还介绍了ADS62PXX EVM评估板的主要特性,详细电路图和材料清单(BOM).

The ADS62Px9/x8 is a family of dual channel 14-bit and 12-bit A/D converters with sampling rates up to 250 MSPS. It combines high dynamic performance and low power consumption in a compact 64 QFN package. This makes it well-suited for multi-carrier, wide band-width communications applications.

The ADS62Px9/x8 has gain options that can be used to improve SFDR performance at lower full-scale input ranges. It includes a dc offset correction loop that can be used to cancel the ADC offset. Both DDR LVDS (Double Data Rate) and parallel CMOS digital output interfaces are available.

It includes internal references while the traditional reference pins and associated decoupling capacitors have been eliminated. Nevertheless, the device can also be driven with an external reference. The device is specified over the industrial temperature range (-40℃ to 85℃).

ADS62Px9/x8主要特性:

Maximum Sample Rate: 250 MSPS
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