AD7813YRUZ

Overview

The AD7813YRUZ is a 10-bit successive approximation analog-to-digital converter manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 2.7 V to 5.5 V and supports a maximum sampling rate of 400 kSPS. The device features an 8-bit parallel interface, allowing data access through two consecutive 8-bit read operations for the full 10-bit result. Key electrical specifications include a signal-to-noise ratio of 58 dB, differential nonlinearity of ±1 LSB, integral nonlinearity of ±1 LSB, and gain error of ±2 LSB. Power consumption is 17.5 mW in normal operation at 5 V, with automatic power-down reducing dissipation to 34.6 µW at 1 kSPS.

Feature Summary

• Microprocessor-compatible 8-bit wide parallel interface designed for easy integration with DSPs and microcontrollers.
• Automatic power-down mode that activates at the end of each conversion cycle to minimize energy usage during low throughput rates.
• On-chip track-and-hold circuitry combined with a successive approximation architecture for high-speed data acquisition.

Applications

• Battery-powered instrumentation systems requiring low average power consumption.
• Industrial process control loops utilizing serial or parallel microprocessor buses.
• Data acquisition modules interfacing directly with digital signal processors.

Procurement Notes

Verify the specific package variant against project requirements, as the YRUZ suffix denotes the TSSOP-16 configuration. Confirm that the external reference voltage range aligns with the specified 1.2 V to VDD limits. Ensure proper decoupling capacitors are placed near the VREF and VDD pins to maintain signal integrity and meet dynamic performance specifications.

Selection Notes

Select this component when a 10-bit resolution and 400 kSPS throughput are required within a single-supply environment. Consider the parallel interface constraints if system bus speed is limited. Evaluate the automatic power-down feature against the desired sampling frequency to optimize battery life in portable applications compared to continuous conversion modes.

Part Context

This part belongs to the AD7813 series of sampling ADCs produced by Analog Devices. The series includes variants such as the AD7813YN (DIP) and AD7813YR (SOIC), offering different packaging options while maintaining identical electrical characteristics. The YRUZ designation specifically identifies the thin shrink small outline package version suitable for surface-mount assembly.

Replacement Considerations

Publicly confirmed substitute part numbers for the AD7813YRUZ were not found in the provided documentation. Designers should verify pin compatibility and electrical specifications before considering alternative manufacturers' devices.