ADS5232中文资料双通道、12 位、65MSPS 模数转换器 (ADC)数据手册TI规格书

描述 Description

The ADS5232 is a dual, high-speed, high dynamic range, 12-bit pipelined analog-to-digital converter (ADC). This converter includes a high-bandwidth sample-and-hold amplifier that gives excellent spurious performance up to and beyond the Nyquist rate. The differential nature of the sample-and-hold amplifier and ADC circuitry minimizes even-order harmonics and gives excellent common-mode noise immunity. The ADS5232 provides for setting the full-scale range of the converter without any external reference circuitry. The internal reference can be disabled, allowing low-drive, external references to be used for improved tracking in multichannel systems. The ADS5232 provides an over-range indicator flag to indicate an input signal that exceeds the full-scale input range of the converter. This flag can be used to reduce the gain of front-end gain control circuitry. There is also an output enable pin to allow for multiplexing and testing on a PC board. The ADS5232 employs digital error correction techniques to provide excellent differential linearity for demanding imaging applications. The ADS5232 is available in a TQFP-64 package.

特性 Features

• Single +3.3V Supply
• High SNR: 70.7dBFS at fIN = 5MHz
• Total Power Dissipation:Internal Reference: 371mWExternal Reference: 335mW
• Internal or External Reference
• Low DNL: ±0.3LSB
• Flexible Input Range: 1.5VPP to 2VPP
• TQFP-64 Package
• APPLICATIONS
• Communications IF Processing
• Communications Base Stations
• Test Equipment
• Medical Imaging
• Video Digitizing
• CCD Digitizing

简介

ADS5232属于集成电路（IC）的模数转换器（ADC）。由TI制造生产的ADS5232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。