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ADS7924
SBAS482C – JANUARY 2010 – REVISED SEPTEMBER 2017
ADS7924 2.2 V, 12-Bit, 4-Channel, MicroPOWER Analog-to-Digital Converter With I2C Interface
1 Features
•1 Intelligent Monitoring: – Auto-Sequencing of 4-Channel Multiplexer – Individual Alarm Thresholds for Each Channel – Programmable Scan Rate
• MicroPOWER™ Monitoring: – Four-Channel Scanning: – Every 1 ms → 25 μW – Every 10 ms → 5 μW – < 1 µA of Power.
Analog-to-Digital Converter
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Order Now
Technical Documents
Tools & Software
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ADS7924
SBAS482C – JANUARY 2010 – REVISED SEPTEMBER 2017
ADS7924 2.2 V, 12-Bit, 4-Channel, MicroPOWER Analog-to-Digital Converter With I2C Interface
1 Features
•1 Intelligent Monitoring: – Auto-Sequencing of 4-Channel Multiplexer – Individual Alarm Thresholds for Each Channel – Programmable Scan Rate
• MicroPOWER™ Monitoring: – Four-Channel Scanning: – Every 1 ms → 25 μW – Every 10 ms → 5 μW – < 1 µA of Power-Down Current – Programmable Interrupt Pin Controls Shutdown/Wakeup of the Microcontroller – Auto Power-Down Control – PWRCON Pin Allows Shutdown of External Operational Amplifiers
• Wide Supply Range: – Analog Supply: 2.2 V to 5.5 V – Digital Supply: 1.65 V to 5.5 V
• Small Footprint: 3-mm × 3-mm WQFN
2 Applications
• Portable and Battery-Powered Systems: – Medical, Communications, Remote Sensor Signal Monitoring, Power-Supply Monitoring
• Energy Harvesting
3 Description
The ADS7924 is a four-channel, 12-bit, analog-todigital 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.