AD7892BRZ-1REEL

Overview

The AD7892BRZ-1REEL is a 12-bit successive approximation analog-to-digital converter (ADC) manufactured by Analog Devices Inc. It operates from a single +5 V supply and features an on-chip track/hold amplifier with an internal +2.5 V reference. The device supports both parallel and serial interfaces for microprocessor connectivity. This specific variant, the AD7892-1, provides an analog input range of ±10 V or ±5 V and achieves a throughput rate of 500 kSPS. It is housed in a 24-lead SOIC package.

Feature Summary

• Integrated signal scaling allows direct handling of ±10 V or ±5 V analog inputs while operating from a single +5 V supply.
• Flexible interface architecture supports both high-speed parallel connections and three-wire serial communication modes.
• On-chip track/hold amplifier ensures accurate conversion of full-scale amplitude signals up to the maximum throughput rate.

Applications

• Industrial process control systems requiring isolated or scaled voltage monitoring
• Portable instrumentation utilizing low-power single-supply operation
• Data acquisition modules interfacing with microcontrollers via serial ports

Procurement Notes

Verify that the ordering suffix 'REEL' corresponds to tape-and-reel packaging rather than tube packaging when sourcing components. Confirm the '-1' designation matches the required ±10 V or ±5 V input range specifications for your application design.

Selection Notes

Select this component if the design requires a 500 kSPS sampling rate with a ±10 V or ±5 V input range. Ensure the system can accommodate the 24-lead SOIC footprint and provide a stable +5 V supply. Consider the AD7892-3 variant if a higher 600 kSPS rate or ±2.5 V input range is preferred.

Part Context

This part belongs to the AD7892 family of LC2MOS single-supply ADCs. It shares the core SAR architecture and interface logic with variants like the AD7892-2 and AD7892-3, differing primarily in input voltage scaling and throughput speed capabilities defined by the suffix number.

Replacement Considerations

Direct functional substitutes within the same family include the AD7892ARZ-1REEL (same specs, different temperature grade/package option) and the AD7892BNZ-1 (through-hole DIP package). For higher speed requirements, the AD7892BRZ-3REEL offers 600 kSPS throughput but requires a ±2.5 V input range.