AD7811YRZ-REEL7

Overview

The AD7811YRZ-REEL7 is a 10-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It features four single-ended input channels that can be configured as three pseudo-differential inputs or two independent pseudo-differential pairs. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V and achieves a throughput rate of 350 kSPS with a maximum conversion time of 2.3 µs. It integrates an onboard track-and-hold amplifier, a 2.5 V reference circuit, and a high-speed serial interface compatible with DSPs and microcontrollers. The component is housed in a 16-lead Small Outline IC (SOIC) package.

Feature Summary

• Integrates a 2.5 V onboard reference circuit that powers down when an external reference is selected.
• Supports hardware and software control for conversion start and power-down modes.
• Includes a package address pin allowing multiple devices to share the same serial bus.

Applications

• Battery-powered instrumentation systems
• Industrial process control data acquisition
• Portable medical equipment

Procurement Notes

Verify the specific ordering suffix against official documentation to confirm packaging format. The REEL designation indicates tape and reel packaging, which differs from tube packaging found in other variants. Confirm automotive qualification status if required for the target application environment.

Selection Notes

Select this model for applications requiring low power consumption and a compact 16-lead SOIC footprint. Ensure the system design accommodates the 2.7 V to 5.5 V supply range and utilizes the serial interface timing requirements. Consider channel count needs, as the AD7812 variant offers eight channels.

Part Context

This component belongs to the AD7811/AD7812 family of high-speed, low-power sampling ADCs. The AD7811 variant specifically provides four input channels, whereas the AD7812 provides eight. Both share identical core architecture, performance specifications, and interface protocols, differing primarily in channel count and package lead configuration.

Replacement Considerations

The AD7811YR and AD7811YRU are functionally equivalent alternatives offering different packaging options. Verify pin compatibility and thermal characteristics when substituting between SOIC, DIP, and TSSOP packages.