AD7812YRUZ-REEL

Overview

The AD7812YRUZ-REEL is a high-speed, low-power 10-bit analog-to-digital converter featuring eight single-ended input channels. It operates from a single 2.7 V to 5.5 V supply and delivers a throughput of 350 kSPS with a conversion time of 2.3 µs. The device integrates an on-chip track-and-hold amplifier and a 2.5 V reference circuit. It utilizes a DSP-compatible serial interface for data output and control. The Y version guarantees ±1 LSB differential nonlinearity and ±1 LSB integral nonlinearity. It is housed in a 20-lead Thin Shrink Small Outline Package (TSSOP) and supports an operating temperature range from -40°C to +105°C.

Feature Summary

• Eight-channel multiplexing capability with configurable single-ended or pseudo-differential input modes via control registers.
• Integrated 2.5 V reference circuitry that powers down when an external reference is selected to reduce current consumption.
• Hardware and software control options for conversion start and automatic power-down modes to optimize energy usage at lower throughput rates.
• Package address pin allows two devices to share the same serial bus in multipackage applications.

Applications

• Industrial process control systems requiring multi-channel signal acquisition.
• Data acquisition modules for monitoring multiple sensor inputs.
• Automotive electronic systems qualified for extended temperature ranges.

Procurement Notes

Verify the specific ordering suffix REEL indicates tape-and-reel packaging upon purchase. Confirm the Y variant designation ensures the specified linearity performance levels. Ensure the procurement source provides valid manufacturer documentation to confirm the component matches the AD7812 specifications rather than similar family members.

Selection Notes

Select this component when eight independent analog channels require digitization within a compact footprint. The integrated reference simplifies board design by reducing external component count. Consider the serial interface compatibility with the target microcontroller or DSP before implementation. Evaluate power consumption requirements against the available automatic power-down modes for battery-operated applications.

Part Context

This part belongs to the AD7811/AD7812 family of sampling ADCs. The AD7812 specifically provides eight channels, whereas the AD7811 offers four. Both share identical core architecture, speed, and interface characteristics. The YRUZ suffix denotes the TSSOP package, automotive qualification, and lead-free composition compliant with RoHS standards.

Replacement Considerations

The AD7811 serves as a functional substitute if only four channels are required. Other Analog Devices SAR ADCs may replace this part if channel count or resolution differs. Verify pin compatibility and serial interface timing before substituting with unrelated families.