AD7924WYRUZ-REEL7

Overview

The AD7924WYRUZ-REEL7 is a 12-bit, 4-channel successive approximation analog-to-digital converter (ADC) from Analog Devices. It operates on a single supply ranging from 2.7 V to 5.25 V and supports throughput rates up to 1 MSPS. The device features four single-ended analog inputs with an integrated channel sequencer. Key dynamic performance metrics include a Signal-to-Noise Ratio (SNR) of 70 dB at a 50 kHz input frequency and a Total Harmonic Distortion (THD) of -77 dB maximum at 5 V. Power consumption reaches a maximum of 13.5 mW at 5 V supplies during operation. The component is housed in a 16-lead TSSOP package and is qualified for automotive applications.

Feature Summary

• Integrated channel sequencer allows pre-programmed sequential conversion of four single-ended analog inputs.
• Flexible power management includes two shutdown modes to minimize current consumption at lower throughput rates.
• VDRIVE function enables the serial interface to connect directly to 3 V or 5 V processor systems independent of AVDD.
• No pipeline delays ensure accurate control of sampling instants via the CS input.

Applications

• Automotive data acquisition systems
• Industrial process control monitoring
• Portable instrumentation

Procurement Notes

Verify the specific suffix 'W' indicates the automotive temperature grade (-40°C to +125°C) compared to the commercial 'B' version. Confirm that the REEL7 packaging designation matches the required tape and reel specifications for automated assembly lines. Ensure the external reference voltage is set to 2.5 V ±1% for specified performance compliance.

Selection Notes

Select this model when 12-bit resolution and 1 MSPS throughput are required for multi-channel applications. Consider the W-grade variant if the operating environment exceeds the commercial temperature range. Evaluate the SNR requirements against the 70 dB specification at 50 kHz input frequencies. Verify that the single-ended input configuration aligns with the sensor interface design.

Part Context

This component belongs to the AD7904/AD7914/AD7924 family of high-speed, low-power ADCs. While sharing the same architecture and pinout, the AD7924 provides 12-bit resolution, distinguishing it from the 8-bit AD7904 and 10-bit AD7914. All variants utilize the same 16-lead TSSOP package and support identical serial interface protocols.

Replacement Considerations

Public confirmed substitute part numbers: AD7924BRUZ-REEL7 (Commercial grade equivalent).