AD7895ARZ-10

Overview

The AD7895ARZ-10 is a 12-bit successive approximation analog-to-digital converter (ADC) housed in an 8-pin SOIC package. It operates from a single +5 V supply and features a high-speed serial interface with a conversion time of 3.8 μs. The device includes an on-chip track/hold amplifier and accepts an analog input voltage range of ±10 V. Key electrical specifications include a maximum power dissipation of 20 mW, a signal-to-noise ratio of 70 dB, and a relative accuracy of ±1 LSB. The component supports throughput rates up to 192 kHz and functions within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a 12-bit ADC, track/hold amplifier, and control logic within an 8-pin package for space efficiency.
• Features a two-wire serial interface utilizing SCLK and SDATA lines for straightforward microcontroller connectivity.
• Includes an automatic power-down mode that activates after conversion completion to minimize energy consumption.
• Provides internal signal scaling to accommodate bipolar ±10 V analog inputs while operating on a single +5 V supply.

Applications

• Battery-powered portable instrumentation systems
• Industrial process control data acquisition
• Medical equipment requiring low-power signal digitization

Procurement Notes

Verify the specific suffix designation against manufacturer documentation to confirm the exact input voltage range and linearity specifications. Ensure the ordering information matches the required package type and temperature grade. Cross-reference the part number with official distributor catalogs to validate current availability status and compliance certifications prior to procurement.

Selection Notes

Select this component when a compact solution is required for 12-bit resolution applications with bipolar input signals. The device is suitable for designs constrained by single-supply operation and limited board space. Consider the 3.8 μs conversion speed and 192 kHz throughput capability for moderate-speed data acquisition tasks where low power consumption is a priority.

Part Context

The AD7895ARZ-10 belongs to the AD7895 family of fast, 12-bit serial ADCs manufactured by Analog Devices. This series is designed to replace discrete solutions by integrating multiple functions into a small footprint. The ARZ variant specifically denotes the surface-mount SOIC package option with lead-free composition, distinguishing it from through-hole DIP versions within the same product line.

Replacement Considerations

The AD7895BRZ-10 serves as a parameter-equivalent alternative within the same series. Both components share identical pinouts and core functionalities, differing primarily in manufacturing lot or minor specification tolerances defined by the manufacturer's grading system.