MAX907CPA+

Overview

The MAX907CPA+ is a dual, high-speed, ultra-low-power voltage comparator designed for single +5V supply systems. It features a typical propagation delay of 40ns with 5mV input overdrive and consumes only 3.5mW per comparator. The device operates within a supply range of 4.5V to 5.5V and includes internal hysteresis for clean switching. It offers TTL-compatible outputs, a wide input common-mode range extending below ground, and short-circuit protection on all inputs and outputs.

Feature Summary

• High-speed operation with 40ns propagation delay at low power consumption
• Built-in internal hysteresis eliminates external resistor requirements
• TTL-compatible outputs require no external pullup circuitry
• Input and output short-circuit protection allows continuous connection to supply rails

Applications

• Battery-powered systems
• High-speed A/D converters
• Threshold detectors/discriminators
• Zero-crossing detectors

Procurement Notes

Verify the component is the MAX907CPA+ variant specifically, as the datasheet covers multiple models including MAX908 and MAX909 which have different pinouts and features. Confirm the package type matches the required PCB footprint, as this part is available in Plastic DIP and SO packages. Check the temperature grade suffix to ensure it meets the operational environment requirements, as the 'C' indicates a commercial range. Ensure the design accounts for the fact that this series is not recommended for new designs due to process availability constraints.

Selection Notes

Select this comparator when a combination of high speed, precision, and ultra-low power dissipation is required for single +5V-supply applications. It serves as a replacement for older comparators in systems needing TTL-compatible logic levels without external components. Consider the internal hysteresis for noise immunity in slow-moving signal environments. Verify that the dual-channel configuration fits the system architecture, noting that quad versions are available in the same family if more channels are needed.

Part Context

The MAX907 is part of the MAX907/MAX908/MAX909 family of dual/quad/single, high-speed, ultra-low-power, single-supply TTL comparators manufactured by Maxim Integrated (now Analog Devices). These devices are designed for systems powered from a single +5V supply. The MAX907 specifically provides two comparator channels in an 8-pin package. The datasheet notes that the manufacturing process for this family is no longer available, making it not recommended for new designs.

Replacement Considerations

Contact technical support or consult the manufacturer for available replacement parts or industry second-sources, as the original manufacturing process is discontinued.