MAX975ESA

Comparators Overview

The MAX975ESA is a single-channel analog comparator from the MAX975 series, housed in an 8-pin SOIC package. It operates on a single supply voltage ranging from +2.7V to +5.25V. The device features three operating modes: high speed, low power, and high speed with auto-standby. In high-speed mode, it achieves a propagation delay of 28ns with a typical supply current of 250µA. Low-power mode reduces supply current to a maximum of 5µA. The outputs are rail-to-rail, and the inputs support ground sensing.

Comparators Feature Summary

• Three selectable operating modes including high speed, low power, and high speed with auto-standby for optimized power consumption.
• Rail-to-rail output capability without requiring external pull-up circuitry, facilitating direct interface with CMOS and TTL logic.
• Internal hysteresis in high-speed mode ensures clean output switching even when processing slow-moving input signals.
• Auto-standby feature automatically transitions the device from low-power mode to high-speed mode upon detecting an input signal.

Comparators Applications

• Battery-powered systems
• RF ID tags
• Keyless entry systems
• Threshold detectors and discriminators
• IR receivers

Comparators Procurement Notes

Verify the specific ordering suffix 'ESA' confirms the 8-pin SOIC package and -40°C to +85°C temperature range. Confirm RoHS compliance status as indicated by the '+' suffix if required. Ensure the component source matches Analog Devices/Maxim Integrated specifications. Check for any specific handling requirements related to the surface-mount package type during assembly.

Comparators Selection Notes

Select this component when a single comparator with adjustable power modes is required for +3V or +5V applications. The auto-standby function is suitable for battery-operated designs needing extended standby times. Verify that the 28ns propagation delay meets system timing requirements in high-speed mode. Consider the internal hysteresis for noise immunity in threshold detection circuits.

Comparators Part Context

The MAX975ESA belongs to the MAX975/MAX977 family of dual-speed comparators. While the MAX975 provides a single channel, the MAX977 offers dual channels. Both share similar electrical characteristics and operating modes. The MAX975 is also available in µMAX packages, whereas the ESA variant specifically denotes the standard 8-pin SOIC footprint.

Comparators Replacement Considerations

Direct substitutes within the same family include the MAX975EUA+T (µMAX package). For dual-channel requirements, the MAX977ESD is the corresponding alternative. No other cross-family replacements are confirmed in the provided documentation.