BA2904HFVM-CTR

Overview

The BA2904HFVM-CTR is a dual-channel ground sense operational amplifier manufactured by ROHM Semiconductor. It integrates two independent op-amps on a single silicon monolithic chip, featuring high gain and low power consumption. The device supports a wide operating supply voltage range of +3.0V to +36.0V with a single power supply. Key electrical specifications include a maximum input offset voltage of 7mV, a typical input bias current of 20nA, and a typical supply current of 0.5mA per channel. It operates within an ambient temperature range of -40°C to +125°C.

Feature Summary

• Operable with a single power supply across a wide voltage range
• Input and output stages are operable at GND sense levels
• Features low supply current consumption for energy efficiency
• Provides high open-loop voltage gain

Applications

• Current sense applications
• Buffer application amplifiers
• Active filter circuits
• Consumer electronics

Procurement Notes

Verify the component status before procurement as the BA2904HFVM-CTR is listed as NRND (Not Recommended for New Designs). Confirm that the MSOP8 package dimensions and pin configuration match the design requirements. Ensure the selected variant meets the specific temperature and voltage constraints required for the target application environment.

Selection Notes

Select this component when a dual-channel amplifier with ground-sense capability is required for single-supply systems. Consider the 7mV maximum input offset voltage and 20nA input bias current for precision requirements. Verify that the thermal dissipation characteristics in the MSOP8 package are sufficient for the expected operating temperature range up to +125°C.

Part Context

This part belongs to the BA2904 series of general-purpose operational amplifiers from ROHM. The series includes variants like the BA2904F and BA2904SF, which share similar electrical characteristics but differ in operating temperature ranges and packaging options. The HFVM suffix indicates the specific MSOP8 package and tape & reel packaging format.

Replacement Considerations

Direct replacements may include other BA2904 variants such as BA2904FVM or BA2904SFVM, provided they meet the specific temperature and package requirements. Cross-manufacturer equivalents should be evaluated based on matching pinouts, supply voltage ranges, and ground-sense capabilities.