ADS7869中文资料12 通道 7 路采样模拟电机控制前端，具有 3 个 1MSPS 12 位 ADC数据手册TI规格书

描述 Description

The ADS7869 is a motor-control front-end that includes three analog-to-digital converters (ADCs) with a total of seven sample-and-hold capacitors and 12 fully differential input channels. There are four sign comparators connected to four input channels. There are also three additional fully differential inputs; each input is connected to a window comparator and a sign comparator. In addition, the ADS7869 also offers a very flexible digital interface with a parallel port that can be configured to different standards. Furthermore, a serial peripheral interface (SPI) and a specialized serial interface with three data lines (VECANA01 mode) are provided. This allows the ADS7869 to interface with most digital signal processors (DSPs) or microcontrollers. The chip is specialized for motor-control applications. For the position sensor analysis, two up-down counters are added on the silicon. This feature ensures that the analog input of the encoder is held at the same point of time as the counter value.

特性 Features

• Seven Simultaneously-Sampling Sample-and-Hold (S/H) Capacitors
• Fully Differential Inputs
• Flexible Digital Interface with Four Modes
• One Mode 100% Software-Compatible to VECANA01
• SPI and Two Parallel Modes

• Two Up-Down Counter Modules On-Chip
• 12-Bit System Gain Adjustment for Every Channel
• 12-Bit Accurate System Offset Adjustment for Every Channel
• APPLICATIONS
• Motor Control

简介

ADS7869属于集成电路（IC）的ADC/DAC-特殊用途。由TI制造生产的ADS7869ADC/DAC - 特殊用途该产品族中的产品可用于模拟和数字表示的信息转换，适用于特定用例，或集成了通用数据转换器中不常见的其他功能。例如针对超声或汽车雷达应用集成了低噪声放大器和可变增益级的器件、注重音频和视频的产品、在段码式显示器上集成显示测量值功能的器件、集成输入输出电气隔离的器件等。