AD7829BRUZ-1

Overview

The AD7829BRUZ-1 is an 8-bit, 8-channel analog-to-digital converter with a maximum throughput of 2 MSPS. It utilizes a half-flash architecture and features an on-chip track-and-hold amplifier. The device operates from a single supply voltage ranging from 2.7 V to 3.3 V or 4.5 V to 5.5 V. Key electrical specifications include a conversion time of 420 ns, an input voltage span of 2.5 V at 5 V operation and 2 V at 3 V operation, and a signal-to-noise ratio of 48 dB minimum. It incorporates a 2.5 V internal reference and supports flexible parallel interfacing.

Feature Summary

• Integrates eight single-ended analog input channels with automatic channel selection via address inputs.
• Features an on-chip track-and-hold amplifier capable of handling full-scale input signals up to 10 MHz.
• Includes a built-in 2.5 V reference voltage to simplify external circuit design.
• Supports automatic power-down mode at the end of conversion to minimize power consumption.

Applications

• Data acquisition systems
• DSP front ends
• Disk drives
• Mobile communication systems

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct package type and temperature range. Confirm that the component meets all required environmental standards for the intended deployment environment before finalizing procurement decisions.

Selection Notes

Select this component when high-speed conversion is required alongside low power consumption. Ensure the system design accommodates the 2.5 V or 2 V input voltage spans based on the chosen supply voltage. Verify that the microprocessor interface can support the required parallel data bus timing constraints.

Part Context

This part belongs to the AD7829-1 series, which offers multiple channel configurations including 1, 4, and 8 channels. The BRUZ designation indicates a specific industrial temperature range and surface-mount package variant within the broader family of high-speed, microprocessor-compatible ADCs produced by Analog Devices.

Replacement Considerations

The AD7829BRUZ is listed as a parameter-equivalent alternative in distributor catalogs. Verify pin compatibility and electrical specifications before substitution.