AD7865BSZ-3REEL

Overview

The AD7865BSZ-3REEL is a four-channel, simultaneous sampling, fast, 14-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single +5 V supply and features a successive approximation architecture with a conversion time of 2.4 µs per channel. The device includes four track/hold amplifiers with an acquisition time of 0.35 µs, allowing for the preservation of relative phase information across inputs. It supports input ranges of ±2.5 V and offers a high-speed parallel interface compatible with 3 V processors. Maximum throughput rates are 350 kSPS for a single channel and 100 kSPS when all four channels are active.

Feature Summary

• Four simultaneously sampled inputs with dedicated track/hold amplifiers
• Hardware or software selectable channel conversion sequences
• High-speed parallel data interface supporting 3 V logic levels
• Integrated internal voltage reference and clock oscillator

Applications

• AC motor control systems
• Uninterruptible power supplies
• Industrial power meters and monitors
• Data acquisition systems
• Communications equipment

Procurement Notes

Verify that the REEL suffix indicates tape-and-reel packaging rather than tray packaging. Confirm the -3 suffix corresponds to the ±2.5 V bipolar input range specification. Ensure the B version meets the required integral nonlinearity accuracy of ±1.5 LSB maximum. Check component authenticity through authorized distribution channels.

Selection Notes

Select this model specifically for applications requiring a ±2.5 V input voltage range. Choose the B version over the A version if tighter integral nonlinearity specifications are necessary. Consider the REEL packaging format for automated surface-mount assembly processes. Verify compatibility with existing 5 V digital logic interfaces before implementation.

Part Context

This component belongs to the AD7865 family of four-channel simultaneous sampling ADCs. The AD7865 series provides options for different input ranges and accuracy grades. The BSZ-3 variant specifically targets signal processing applications requiring precise bipolar measurements within a compact PQFP package.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.