AD7892BNZ-1

Overview

The AD7892BNZ-1 is a 12-bit successive approximation analog-to-digital converter (ADC) fabricated in LC2MOS technology. It operates from a single +5 V supply with typical power dissipation of 60 mW and supports throughput rates up to 500 kSPS. The device features an on-chip track/hold amplifier, an internal +2.5 V reference, and versatile interface structures allowing both serial and parallel connections to microprocessors. It accepts analog input ranges of ±10 V or ±5 V and includes overvoltage protection on the analog inputs.

Feature Summary

• Integrated signal scaling allows direct handling of ±10 V or ±5 V analog input signals while operating from a single +5 V supply.
• On-chip track/hold amplifier ensures accurate conversion of full-scale amplitude sine waves to 12-bit accuracy.
• Flexible interface architecture supports both high-speed parallel and serial data output formats for easy connection to various digital processors.

Applications

• Portable instrumentation systems requiring low power consumption
• Industrial process control applications involving voltage monitoring
• Data acquisition systems interfacing with microcontrollers

Procurement Notes

Verify the specific suffix 'N' corresponds to the plastic DIP package configuration required for your design. Confirm that the -1 variant matches the intended ±10 V or ±5 V input range specifications. Ensure the component meets the necessary RoHS compliance standards for your manufacturing environment before finalizing procurement orders.

Selection Notes

Select this model when a single-supply operation is required alongside wide analog input ranges. The integrated signal scaling eliminates the need for external attenuators for ±10 V signals. Consider the available interface modes if system bus constraints favor either parallel or serial communication protocols.

Part Context

This component belongs to the AD7892 family of high-speed, low-power ADCs. The BNZ designation indicates a commercial temperature range version (-40°C to +85°C) housed in a 24-lead plastic DIP package. Other variants in the series offer different input ranges and packaging options such as SOIC.

Replacement Considerations

Direct pin-compatible replacements within the same family include the AD7892ANZ-1 for standard accuracy or the AD7892BRZ-1 for improved linearity specifications in a surface-mount package. Verify thermal and electrical compatibility when substituting across package types.