TC3400中文资料1.8V, Low Power, 16-Bit Sigma-Delta A/D Converter数据手册Microchip规格书

描述 Description

The TC3400 is a low cost, low power analog-to-digital converter based on Microchip’s Sigma-Delta technology. It will perform 16-bit conversions (15-bit plus sign) at up to eight per second. The TC3400 is optimized for use as a microcontroller peripheral in low cost, battery operated systems. A voltage reference is included, or an external reference can be used. The TC3400’s 2-wire MicroPort™ digital interface is used for starting conversions and for reading out the data. Driving the SCLK line low starts a conversion. After the conversion starts, each additional falling edge (up to six) detected on SCLK for t4 seconds reduces the A/D resolution by one bit and cuts conversion time in half. After a conversion is completed, clocking the SCLK line puts the MSB through LSB of the resulting data word onto the SDAT line, much like a shift register. The part automatically sleeps when not performing a data conversion. The TC3400 is available in 8-Pin PDIP and 8-Pin SOIC packages.

特性 Features

•16-Bit Resolution at Eight Conversions Per Second, Adjustable Down to 10-Bit Resolution at 512 Conversions Per Second
•1.8V–5.5V Operation      Low Power Operating...............260A     Sleep...............0.75A
•MicroPort™ Serial Bus Requires Only Two Interface Lines
•Uses Internal or External Reference
•Automatically Enters Sleep Mode When Not In Use

简介

TC3400属于集成电路（IC）的模数转换器（ADC）。由制造生产的TC3400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。