AD7811YN

Overview

The AD7811YN is a 10-bit successive approximation analog-to-digital converter featuring four single-ended input channels. It operates from a single 2.7 V to 5.5 V supply with a maximum throughput of 350 kSPS and a conversion time of 2.3 µs. The device integrates an on-chip track/hold amplifier, a 2.5 V reference circuit, and a high-speed serial interface compatible with DSPs and microcontrollers. It is housed in a 16-lead plastic dual-in-line package.

Feature Summary

• Configurable input channels supporting single-ended or pseudo-differential modes via control register settings
• Integrated on-chip 2.5 V reference circuitry with option for external reference selection
• Hardware and software control capabilities for conversion start and power-down modes
• Package address pin enabling multiple devices to share the same serial bus

Applications

• Battery-powered instrumentation systems requiring low power consumption
• Industrial process control data acquisition loops
• Portable medical equipment utilizing single-supply operation
• Automotive sensor signal conditioning interfaces

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct package type and linearity specifications. Confirm that the component meets all required environmental and automotive qualification standards before finalizing procurement plans.

Selection Notes

Select this component when a 10-bit resolution with four configurable channels is required within a single-supply architecture. Ensure the system design accommodates the specified 2.7 V to 5.5 V operating range and utilizes a serial interface compatible with the device's timing requirements.

Part Context

This part belongs to the AD7811/AD7812 family of high-speed, low-power sampling ADCs manufactured by Analog Devices Inc. The AD7811 variant specifically provides four input channels, whereas the AD7812 offers eight channels. Both share identical core performance characteristics and architectural features.

Replacement Considerations

Direct functional substitutes include the AD7811YR (SOIC package) and AD7811YRU (TSSOP package). These variants maintain identical electrical specifications but differ only in physical package dimensions and pinout compatibility.