ADC10664中文资料具有输入多路复用器和采样/保持功能的 10 位 360 ns A/D 转换器数据手册TI规格书

描述 Description

NOTE: The ADC10662 is obsolete. It is described here for reference only.Using an innovative, patented multistep (U.S. Patent Number 4918449) conversion technique, these 10-bit CMOS analog-to-digital converters offer sub-microsecond conversion times yet dissipating a maximum of only 235 mW. These converters perform 10-bit conversions in two lower-resolution “flashes”, yielding a fast A/D without the cost, power consumption, and other problems associated with true flash approaches. In addition to standard static performance specifications (Linearity, Full-Scale Error, etc.), dynamic performance (THD, S/N) is ensured.The analog input voltage ADC is sampled and held by an internal sampling circuit. Input signals at frequencies from DC to over 250 kHz can therefore be digitized accurately without the need for an external sample-and-hold circuit.Connecting an external resistor between the “speed-up” pin and ground reduces the typical conversion time to as little as 360 ns for a small linearity sacrifice.For ease of interface to microprocessors, the ADC10662 and ADC10664 have been designed to appear as a memory location or I/O port without the need for external interface logic.

特性 Features

·Built-In Sample-and-Hold
·Single +5V Supply
·No External Clock Required
·Speed Adjust Pin for Faster Conversions
Key Specifications ·Conversion Time 360 ns (Typical)
·Max. Sampling Rate: 1.5 MHz (Min)
·Low Power Consumption 235 mW (Max)
·Total Harmonic Distortion (50 kHz): −60 dB (Max)
·No Missing Codes Over Temperature
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简介

ADC10664属于集成电路（IC）的模数转换器（ADC）。由TI制造生产的ADC10664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。