ADS62P49中文资料双通道、14 位、250MSPS 模数转换器 (ADC)数据手册TI规格书

描述 Description

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°C to 85°C).

特性 Features

• Maximum Sample Rate: 250 MSPS
• 14-Bit Resolution – ADS62P49/ADS62P48
• 12-Bit Resolution – ADS62P29/ADS62P28
• Total Power: 1.25 W at 250 MSPS
• Double Data Rate (DDR) LVDS and Parallel CMOS Output Options
• Programmable Gain up to 6dB for SNR/SFDR Trade-Off
• DC Offset Correction
• 90dB Cross-Talk
• Supports Input Clock Amplitude Down to 400 mVPP Differential
• Internal and External Reference Support
• 64-QFN Package (9 mm × 9 mm)

简介

ADS62P49属于集成电路（IC）的模数转换器（ADC）。由TI制造生产的ADS62P49模数转换器（ADC）模数转换器（ADC、A/D 或 A 转 D）对模拟信号进行采样，例如由麦克风采集的声音或传感器的输出，然后将其转换为数字信号。一般来说，数字输出是二进制补码二进制数，与输入成比例。输入类型可能是差分、伪差分或单端输入。模数转换器可按照位数、采样率、输入数、接口、转换器数和架构（例如自适应增量、双斜率、折叠、流水线、SAR、三角积分、两步式）进行选择。