NCV7041DM3G050R2G

Instrumentation, Op Amps, Buffer Amps Overview

The NCV7041DM3G050R2G is an automotive-qualified, high-voltage current sense amplifier from onsemi. It features a fixed gain of 50 V/V and supports bidirectional current measurements with a common-mode input voltage range extending from -6 V to 80 V. The device operates over an extended temperature range of -40°C to 150°C and includes internal preamplifier and buffer stages accessible via A1 and A2 pins for filtering or gain adjustment. Packaged in a Micro8 format, it offers low quiescent current and high precision for demanding applications.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Automotive qualified with AEC-Q100 certification and PPAP capability
• Wide common-mode input voltage range from -6 V to 80 V
• Bidirectional operation with adjustable reference voltage
• Internal access to preamplifier output and buffer input for customization

Instrumentation, Op Amps, Buffer Amps Applications

• Diesel injection control systems
• Automotive battery management and fuel gauging
• Solenoid and actuator current monitoring
• High-side and low-side power supply designs
• Telecom equipment power monitoring

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific ordering suffix to confirm the package type and gain setting. Ensure the application requires automotive qualification standards including unique site and control change requirements associated with the NCV prefix. Confirm compatibility with the Micro8 package dimensions for PCB layout constraints.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this part when high common-mode voltage tolerance up to 80 V is required alongside automotive reliability standards. The fixed 50 V/V gain suits applications needing moderate amplification without external resistor networks. Consider the Micro8 package for space-constrained designs where thermal resistance characteristics must be evaluated against power dissipation limits.

Instrumentation, Op Amps, Buffer Amps Part Context

This component belongs to the NCS7041/NCV7041 family of high-resolution current sense amplifiers. The NCV prefix specifically denotes automotive-grade devices manufactured under strict quality controls. The DM3G suffix indicates the Micro8 package variant with a gain of 50 V/V, distinguishing it from SOIC-8 versions and other gain configurations within the same series.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct replacements include NCV7041D3G050R2G for SOIC-8 packaging or NCV7041DM3G020R2G if a different gain value is acceptable. Verify that any substitute maintains the 80 V common-mode range and automotive AEC-Q100 qualification status.

Instrumentation, Op Amps, Buffer Amps FAQ

How can the gain be adjusted using the A1 and A2 pins?

The gain can be lowered by connecting A1 to A2 and adding an external resistor to VREF, or increased by adding a positive feedback resistor between A1 and A2.

What is the recommended method for bidirectional sensing reference voltage?

For bidirectional sensing, VREF should typically be set to mid-supply. If using a resistor divider, a unity gain buffer must be used to ensure a low-impedance source.