MAX9077EKA+T

Overview

The MAX9077EKA+T is a dual analog comparator optimized for single-supply applications. It operates within a voltage range of 2.1V to 5.5V and consumes 3µA per comparator. The device features a propagation delay of 580ns, an input common-mode voltage range from -0.2V to VCC-1.2V, and rail-to-rail push-pull outputs capable of driving loads up to 2mA. It includes ground-sensing inputs, no output phase inversion for overdriven inputs, and no differential clamp across inputs. The component is housed in an 8-pin SOT23 package and supports an operating temperature range of -40°C to +85°C.

Feature Summary

• Ultra-low power consumption of 3µA per comparator with 580ns propagation delay
• Rail-to-rail push-pull output drivers supporting loads up to 2mA
• Ground-sensing inputs with extended common-mode voltage range
• No output phase inversion or differential clamping across inputs

Applications

• Battery-powered systems
• Threshold detectors and discriminators
• Keyless entry systems
• IR receivers
• Digital line receivers

Procurement Notes

Verify the specific ordering suffix EKA+T corresponds to the 8-pin SOT23 package configuration. Confirm that the lead-free/RoHS-compliant status (+) aligns with project requirements. Ensure the -40°C to +85°C industrial temperature rating matches the operational environment. Cross-reference the manufacturer's current datasheet revision to validate all electrical characteristics before finalizing procurement specifications.

Selection Notes

Select this component when low power consumption is critical alongside small footprint requirements. The dual-channel architecture allows for cost-effective implementation in portable devices. Verify that the 580ns propagation delay meets system timing constraints. Ensure the 2mA output drive capability is sufficient for the connected logic interface without requiring additional buffering stages.

Part Context

This part belongs to the MAX9075/MAX9077 family of low-cost, ultra-small comparators designed for 3V and 5V single-supply environments. The MAX9077 variant specifically provides two independent comparators in compact packages including SOT23, µMAX, and SO formats. This family is engineered to minimize dynamic power consumption while maintaining robust performance in battery-operated applications.

Replacement Considerations

The MAX9077MSA/PR2 serves as a military-grade alternative offering an extended temperature range of -55°C to +125°C. Both parts share identical pinouts and core electrical functions but differ in their specified operating temperature limits.