LM211DR2G

Overview

The LM211DR2G is a single analog comparator manufactured by onsemi, housed in an SOIC-8 surface-mount package. It operates from a single power supply ranging from 5.0 V to 30 V or split supplies. The device features a complementary output capable of driving loads referenced to ground, the positive supply (VCC), or the negative supply (VEE). Key electrical specifications include a maximum response time of 200 ns, a typical input offset voltage of 3 mV, and a working supply current of 2.4 mA. It supports output currents up to 50 mA and functions within an operating temperature range of -25 °C to +85 °C.

Feature Summary

• Versatile operation with inputs isolated from system ground while outputs drive loads referenced to various supply rails.
• Complementary output configuration allows direct interfacing with DTL, RTL, TTL, or MOS logic families.
• Capable of switching high voltages up to 50 V at currents reaching 50 mA for driving relays, lamps, or solenoids.

Applications

• Driving DTL, RTL, TTL, or MOS logic circuits
• Relay driver applications
• Lamp or solenoid control systems

Procurement Notes

Verify that the ordering suffix 'G' corresponds to the Pb-Free package specification as defined in the official onsemi documentation. Confirm the package type matches the required SOIC-8 form factor. Ensure the component meets RoHS compliance requirements for the intended assembly process. Cross-reference the manufacturer part number LM211DR2G with the specific datasheet revision to validate all electrical parameters against the design requirements.

Selection Notes

Select this component when a single-channel comparator with flexible output referencing is required. The LM211DR2G is suitable for designs needing to interface with multiple logic families without additional level shifting. Consider its 200 ns response time for general-purpose speed requirements. Verify that the 50 mA output current capability aligns with the load drive needs, such as relays or solenoids, rather than high-speed digital signaling where faster comparators might be necessary.

Part Context

This device belongs to the LM211/LM311 family of single comparators. The LM211 variant is specified for an extended industrial temperature range starting at -25 °C, whereas the LM311 typically covers 0 °C to +70 °C. Both share similar pinouts and functional characteristics but differ in thermal and electrical performance limits. The DR2G suffix indicates a tape-and-reel packaging format compliant with lead-free manufacturing standards.

Replacement Considerations

LM211DR2 is a discontinued direct substitute previously available from onsemi. Verify compatibility with the LM211DG variant if rail-packaged components are preferred over tape-and-reel. Ensure any replacement maintains the SOIC-8 footprint and Pb-Free status.