AD7813YRU

Overview

The AD7813YRU is a high-speed, microprocessor-compatible 8-/10-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features a maximum throughput of 400 kSPS and operates from a single 2.7 V to 5.5 V supply. The device integrates a successive approximation A/D converter with a 2.3 µs conversion time, on-chip track/hold circuitry, and an internal clock oscillator. Data is accessed via an 8-bit wide parallel interface requiring two read operations for the full 10-bit result. It is housed in a 16-lead Thin Shrink Small Outline Package (TSSOP).

Feature Summary

• Integrates automatic power-down mode that reduces average power consumption significantly at lower throughput rates.
• Features an 8-bit wide parallel interface designed for direct connection to microprocessors and DSPs.
• Includes on-chip track and hold circuitry and a successive approximation architecture.

Applications

• Microprocessor-based data acquisition systems
• Battery-powered instrumentation due to low power operation
• DSP applications requiring dynamic performance specifications

Procurement Notes

Verify the specific ordering suffix RU corresponds to the TSSOP package variant when sourcing. Confirm the Y version linearity error specification matches system requirements. Check current manufacturing status as older revisions may be discontinued or superseded by newer packages.

Selection Notes

Select this component for applications requiring a balance between speed and power efficiency. Ensure the source impedance is kept low to meet the 100 ns acquisition time requirement. Verify that the microcontroller supports the required parallel interface timing and address decoding logic for the 8-bit + 2-bit read sequence.

Part Context

The AD7813 belongs to the AD7813 family of sampling ADCs. It is available in Plastic DIP, SOIC, and TSSOP packages. The YRU designation specifically identifies the Thin Shrink Small Outline Package variant within this product line.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the verified source material.