TEXAS INSTRUMENTS ADS7924IRTET

The ADS7924IRTET is a 4-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 ADC forms a complete monitoring system for power-critical applications such as battery-powered equipment and energy harvesting systems. The ADC features dedicated data registers and on board 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 ADC. The 4-channel input multiplexer (MUX) is routed through external pins to allow a common signal conditioning circuit to be used between the MUX and ADC thereby reducing overall component count. An on board oscillator eliminates the need to supply a master clock.