AD7811YNZ

Overview

The AD7811YNZ 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-and-hold amplifier, a 2.5 V reference circuit, and a high-speed serial interface compatible with DSPs and microcontrollers. Input signals range from 0 V to VREF, while the reference input accepts 1.2 V to VDD. It is housed in a 16-lead plastic DIP package.

Feature Summary

• Configurable input channels support single-ended or pseudo-differential modes via control registers.
• Integrated 2.5 V reference circuitry reduces external component requirements.
• Automatic power-down modes enable significant energy savings at lower sampling rates.
• Package address pin allows multiple devices to share a common serial bus.

Applications

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

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and linearity specifications. Ensure compatibility with system voltage levels and serial interface timing requirements before integration. Confirm automotive qualification status if required for the target application environment.

Selection Notes

Select this component for applications requiring low power consumption and moderate speed multi-channel sampling. Compare channel count and resolution against the AD7812 variant if more inputs are needed. Verify that the serial interface timing meets the host processor's clock constraints.

Part Context

This part belongs to the AD7811/AD7812 family of 10-bit sampling ADCs designed for low-power, single-supply operation. The series provides flexibility through configurable input modes and integrated references, targeting cost-sensitive embedded data acquisition applications.

Replacement Considerations

The AD7811YR (SOIC) and AD7811YRU (TSSOP) offer identical electrical performance in different packages. Cross-model substitution with the AD7812 requires accounting for additional input channels and pinout differences.