Texas Instruments

ADS7864Y/250

ADS7864Y/250 Description

The ADS7864Y/250 from Texas Instruments is a high-performance, 12-bit, dual-channel SAR (Successive Approximation Register) analog-to-digital converter (ADC) designed for precision measurement applications. It features simultaneous sampling of two differential inputs, enabling accurate signal capture in multi-channel systems. With a 500 kSPS sampling rate, it delivers fast and reliable data conversion, making it suitable for dynamic signal processing. The device operates with dual 5V analog and digital supplies, ensuring compatibility with standard industrial power rails. Packaged in a 48-pin TQFP and available in tape & reel (TR), it is optimized for surface-mount assembly in compact designs.

ADS7864Y/250 Features

• Dual 12-bit SAR ADCs with 3:1 sample-and-hold (S/H) ratio for synchronized multi-channel acquisition.
• SPI-compatible interface for seamless communication with microcontrollers or DSPs.
• Selectable address functionality, enabling easy integration in multi-device configurations.
• External or internal reference options for flexibility in precision requirements.
• Differential input type reduces noise susceptibility, ideal for industrial environments.
• 500 kSPS throughput per channel ensures high-speed data capture.
• ROHS3 compliant and REACH unaffected, meeting stringent environmental standards.
• Simultaneous sampling capability eliminates phase mismatch in multi-sensor systems.

ADS7864Y/250 Applications

The ADS7864Y/250 excels in applications demanding high-speed, multi-channel data acquisition with minimal latency:

• Motor control systems: Simultaneous monitoring of phase currents and voltages.
• Power quality analyzers: Precise measurement of AC waveforms in real-time.
• Medical instrumentation: ECG or EEG signal acquisition with synchronized channels.
• Industrial automation: Condition monitoring of sensors in PLCs or servo drives.
• Test and measurement equipment: High-accuracy data logging for oscilloscopes or spectrum analyzers.

Conclusion of ADS7864Y/250

The ADS7864Y/250 stands out for its dual-channel simultaneous sampling, 12-bit resolution, and SPI interface, making it a versatile choice for high-performance ADC requirements. Its low-noise differential inputs and flexible reference options cater to demanding environments, while the 500 kSPS speed ensures responsiveness in dynamic systems. Whether in industrial, medical, or test applications, this ADC delivers precision, speed, and reliability, backed by Texas Instruments' robust design and compliance with global standards.