AD7864BSZ-1

Overview

The AD7864BSZ-1 is a high-speed, low-power, four-channel simultaneous sampling analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features a 12-bit resolution and operates from a single 5 V supply. The device incorporates four track-and-hold amplifiers that sample inputs simultaneously to preserve relative phase information. It supports an input voltage range of ±10 V or ±5 V and offers a typical power consumption of 90 mW in normal mode. The component utilizes a high-speed parallel interface for data transfer.

Feature Summary

• Four independent track-and-hold amplifiers enable simultaneous sampling across all channels.
• Internal clock oscillator generates the conversion clock without external components.
• Hardware or software selectable channel sequences allow flexible subset conversion.
• Analog inputs include overvoltage protection to prevent damage from excessive signals.

Applications

• AC motor control systems
• Uninterrupted power supplies
• Data acquisition systems

Procurement Notes

Verify the specific suffix 'B' against the manufacturer's current ordering guide to confirm temperature range and performance specifications. Ensure the package type matches the design requirements. Confirm RoHS compliance status with the supplier before finalizing procurement orders.

Selection Notes

Select this component when simultaneous multi-channel sampling is required to maintain signal phase relationships. The B version specifies operation within the industrial temperature range. Verify that the ±10 V or ±5 V input range aligns with the system's signal levels. Consider the parallel interface requirements for the host processor.

Part Context

This part belongs to the AD7864 family of high-speed ADCs. The family includes variants with different input ranges and versions. The AD7864BSZ-1 specifically denotes the B version with the specified input range and MQFP package.

Replacement Considerations

Direct replacements within the same family include the AD7864ASZ-1 for commercial temperature range applications. Other variants like the AD7864-2 or AD7864-3 offer different input ranges but share similar functionality.