ADS7924IRTER Features, Applications, and Compatible Components

Comprehensive Introduction to the ADS7924IRTER

The ADS7924IRTER is a high-performance, four-channel, 12-bit analog-to-digital converter (ADC) developed by Texas Instruments. This microPOWER™ ADC offers intelligent monitoring capabilities with an I2C™ serial interface, designed to optimize power consumption and deliver reliable data conversion in various demanding applications. It is compactly housed in a 3mm × 3mm QFN package and supports an operating temperature range of –40°C to +85°C, making it ideal for portable and industrial environments.

Key Features

· 12-bit Resolution: Offers precise signal conversion with a guaranteed 12-bit no-missing-code performance.

· Multi-Channel Support: Equipped with a four-channel multiplexed input, enabling simultaneous monitoring of multiple signal sources.

· Low Power Operation:

Auto-scan at a 1ms interval for ~25mW power consumption.

Configurable power-down mode that draws less than 1µA.

· Flexible Alarm System: Individual channels have programmable upper and lower alarm thresholds with a dedicated interrupt pin for alerting when conditions are met.

· Wide Supply Range:

Analog supply voltage (AVDD): 2.2V to 5.5V.

Digital supply voltage (DVDD): 1.65V to 5.5V.

· I2C Communication: Supports both standard and fast-mode I2C protocols, simplifying integration with microcontrollers.

Applications

· Portable and Battery-Powered Systems: Ideal for remote sensor monitoring, medical instruments, and portable communication devices due to its low power consumption and high accuracy.

· Energy Harvesting Systems: Utilized in scenarios where energy efficiency and reliable data capture are critical.

· Power-Supply Monitoring: Its low drift and precision make it suitable for power management applications that require continuous tracking of voltage levels.

Compatible Electronic Component Series for ADS7924IRTER 

Integration
1. Operational Amplifiers (Op-Amps)197 Series
· Product Series: OPA197 Series.

· Category: Precision Operational Amplifiers.

· Key Parameters:

Low offset voltage: 25µV (typical).

Supply voltage range: 4.5V to 36V.

Slew rate: 0.8V/µs.

· Applications: Pre-amplification and signal conditioning for analog inputs.

· Recommended Model: OPA197IDBVR for precision with low power consumption.

2. REF3425 Voltage Reference
· Product Series: REF3425 Series.

· Category: Precision Voltage Reference.

· Key Parameters:

Output voltage: 2.5V.

Accuracy: ±0.1%.

Low temperature drift: 10ppm/°C.

· Applications: Ensures consistent ADC performance under varying environmental conditions.

· Recommended Model: REF3425AIDBZR for robust and stable voltage supply.

3. MSP430 Microcontrollers (MCUs)
· Product Series: MSP430 Family.

· Category: Ultra-low-power MCUs.

· Key Parameters:

16-bit RISC architecture.

Operating voltage: 1.8V to 3.6V.

Integrated I2C module for direct ADC communication.

· Applications: Centralized data processing and power management.

· Recommended Model: MSP430G2553IN20 for seamless interfacing with the ADS7924.

4. Digital Potentiometers
· Product Series: AD5160 Series.

· Category: Digital Potentiometer.

· Key Parameters:

256-position resolution.

End-to-end resistance: 10kΩ.

Low standby current: 1µA (typical).

· Applications: Adjustable signal calibration and trimming.

· Recommended Model: AD5160BRJZ10 for precise signal adjustments in circuit tuning.

5. CD74HC4051 Multiplexers
· Product Series: CD74HC4051 Series.

· Category: High-speed CMOS Multiplexer.

· Key Parameters:

8-channel slection.

Low ON resistance: 70Ω.

Wide voltage range: 2V to 6V.

· Applications: Extends the ADC channel count for complex monitoring setups.

· Recommended Model: CD74HC4051PW for effective channel switching in multi-input systems.