TI ADS7924四路12位ADC开发应用方案
TI 公司的ADS7924是四路带I2C接口的12位模数转换器（ADC），采用低功耗的ADC核，支持低电压运行以及灵活的测量顺序，模拟电压2.2V 到 5.5V ，数字电压1.65V 到 5.5V，组成完整的监视系统，主要用在手提和以电池为能源的系统如医疗，通信，遥控传感器信号监视，电源监视和能量收集等。本文介绍了ADS7924主要特性，方框图，几种典型的传感器数据采集应用电路，以及ADS7924EVM评估板主要特性，电路图和材料清单（BOM）。
The ADS7924 is a four-channel, 12-bit, analog-to-digital converter (ADC) with an I2C™ interface. With its low-power ADC core, support for low-supply operation, and a flexible measurement sequencer that essentially eliminates power consumption between conversions, the ADS7924 forms a complete monitoring system for power-critical applications such as battery-powered equipment and energy harvesting systems.
The ADS7924 features dedicated data registers and onboard programmable digital threshold comparators for each input. Alarm conditions can be programmed that generate an interrupt. The combination of data buffering, programmable threshold comparisons, and alarm interrupts minimize the host microcontroller time needed to supervise the ADS7924.
ADS7924主要特性：
Intelligent Monitoring:
Auto-Sequencing of 4-Channel Multiplexer
Individual Alarm Thresholds for Each Channel
Programmable Scan Rate
..
