TC3402中文资料1.8 Low Power, Quad Input, 16-Bit Sigma-Delta A/D Converter数据手册Microchip规格书

描述 Description

The TC3402 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 TC3402 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 TC3402’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) detectedonSCLKfor t4 secondsreducestheA/Dresolution 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 TC3402 is available in 16-Pin PDIP and 16-Pin QSOP 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...............250µA     Sleep...............0.75µA- MicroPort™ Serial Bus Requires Only Two Interface Lines- Uses Internal or External Reference- Automatically Enters Sleep Mode When Not In Use  - Four True Differential Inputs with Built-In Multiplexer

简介

TC3402属于集成电路（IC）的模数转换器（ADC）。由制造生产的TC3402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。