AD7892ANZ-2

Overview

The AD7892ANZ-2 is a 12-bit successive approximation analog-to-digital converter (ADC) fabricated in LC2MOS technology. It operates from a single +5 V supply and achieves a throughput rate of 500 kSPS with a conversion time of 1.6 µs. The device features an on-chip track/hold amplifier, an internal +2.5 V reference, and versatile interface structures supporting both parallel and serial connections. It accepts a unipolar analog input range of 0 V to +2.5 V. The component is housed in a 24-lead plastic DIP package and supports an operating temperature range from -40 °C to +85 °C.

Feature Summary

• Supports flexible data output via selectable parallel or serial interfaces for microprocessor integration
• Integrates signal scaling circuitry to accommodate specific unipolar voltage ranges directly
• Includes an on-chip track/hold amplifier and internal voltage reference to minimize external components

Applications

• Portable instrumentation systems requiring low power consumption
• Industrial process control loops utilizing single-supply operation
• Data acquisition subsystems interfacing with microcontrollers

Procurement Notes

Verify the specific suffix 'ANZ-2' against the manufacturer's current ordering guide to confirm pinout compatibility and lead-free status. Ensure the application design accommodates the 0 V to +2.5 V input range specified for this variant. Confirm that the 24-lead PDIP package dimensions align with the target PCB layout constraints before finalizing procurement.

Selection Notes

Select the AD7892ANZ-2 when a unipolar 0 V to +2.5 V input range is required alongside a 500 kSPS sampling rate. This model is appropriate for designs needing integrated signal scaling and reference capabilities within a single +5 V supply architecture. Consider the parallel or serial interface options based on the available digital controller resources and speed requirements.

Part Context

The AD7892 series comprises high-speed, low-power 12-bit ADCs designed for single-supply applications. Variants are distinguished by their input voltage ranges and throughput speeds. The AD7892-2 specifically targets unipolar signals, while other models support bipolar inputs. The 'AN' designation indicates a plastic DIP package, and 'Z' typically denotes compliance with environmental directives.

Replacement Considerations

Direct functional substitutes include the AD7892BN-2 for improved accuracy specifications and the AD7892AR-2 for surface mount SOIC packaging. These parts share identical electrical characteristics and pinouts but differ in accuracy grades or physical form factor.