ADA4098-2HCPZ

Overview

The ADA4098-2HCPZ is a dual-channel precision operational amplifier from Analog Devices, featuring Over-The-Top input capability and rail-to-rail output. It operates on supply voltages ranging from +3 V to +50 V with a typical quiescent current of 165 µA per channel. The device offers a gain-bandwidth product of 1.05 MHz and a slew rate of 0.85 V/µs. Key specifications include a maximum input offset voltage of ±35 µV, an input bias current of ±700 pA, and a common-mode rejection ratio of 120 dB. It supports a wide operating temperature range from −55°C to +150°C.

Feature Summary

• Over-The-Top input stage allows operation up to +VS + 70 V
• Robust input protection against high differential and common-mode voltages
• Low power consumption with shutdown mode support
• High precision with low offset voltage and drift

Applications

• Industrial sensor signal conditioning
• Supply current sensing
• Battery and power supply monitoring
• Front-end amplifiers in abusive environments
• 4 mA to 20 mA transmitters

Procurement Notes

Verify the specific package type associated with the HCPZ suffix, as the datasheet lists SOIC_N, MSOP, and LFCSP options for the ADA4098-2. Confirm that the component grade meets the required temperature and performance specifications for your application environment. Ensure compatibility with your PCB layout regarding thermal management and pin configuration.

Selection Notes

Select this component when high DC accuracy and robust input handling are required in single-supply systems. The Over-The-Top feature is critical for applications where the input signal may exceed the positive supply rail. Consider the available packages (SOIC_N, MSOP, LFCSP) based on space constraints and thermal requirements. Verify if the shutdown functionality is needed for power management.

Part Context

The ADA4098-2HCPZ belongs to the ADA4098 family of precision operational amplifiers designed by Analog Devices. This series is characterized by its ability to handle input voltages significantly above the positive supply rail while maintaining low noise and high precision. It is part of a broader portfolio of robust analog signal chain components intended for demanding industrial and automotive applications.

Replacement Considerations

Check for direct replacements within the ADA4098 family or similar Over-The-Top amplifiers like the ADA4096 series. Ensure pinout compatibility and verify that electrical parameters such as offset voltage, bandwidth, and supply voltage range meet or exceed the original design requirements.