MAX912ESE+T

Overview

The MAX912ESE+T is a dual, ultra-fast, low-power precision TTL comparator manufactured by Analog Devices Inc./Maxim Integrated. It features differential inputs and complementary TTL outputs with a typical propagation delay of 10ns and a maximum of 16ns. The device operates from a single +5V or dual ±5V supply, drawing 6mA per comparator at +5V. Key electrical parameters include an input offset voltage of 0.8mV (typ), a common-mode rejection ratio of 110dB, and a power-supply rejection ratio of 100dB. It functions within an extended temperature range of -40°C to +85°C and is housed in a 16-pin Narrow SO package.

Feature Summary

• Stable operation in the linear region without oscillation, eliminating the need for hysteresis and preserving high resolution for slow-moving signals.
• Integrated TTL-compatible latch function that holds the output state when the Latch Enable pin is asserted, allowing for precise timing control.
• Wide common-mode input range that extends below the negative supply rail, accommodating diverse signal levels in single or split supply configurations.

Applications

• Zero-Crossing Detectors
• Ethernet Line Receivers
• Switching Regulators
• High-Speed Sampling Circuits
• Fast Pulse Width/Height Discriminators

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels due to potential availability constraints. Confirm the specific suffix matches the required temperature grade and packaging format. Ensure proper handling procedures are followed during installation to maintain device integrity and performance specifications.

Selection Notes

Select this component for applications requiring high-speed comparison with minimal power consumption and precise timing accuracy. The dual configuration offers independent latch controls for Comparator A and B, suitable for complex logic operations. Consider the narrow SO package dimensions for PCB layout constraints and verify supply voltage compatibility with system requirements.

Part Context

This part belongs to the MAX912/MAX913 family of high-speed comparators designed for low-power, high-speed applications. The MAX912 serves as the dual-channel variant, providing equal performance to the single-channel MAX913 while adding independent latch capabilities. It is engineered to replace older components like the LT1016 with improved input voltage ranges and lower power dissipation.

Replacement Considerations

The MAX913 is noted as an improved plug-in replacement for the LT1016. For dual-channel needs, ensure the substitute supports independent latch controls if required by the design. Verify pinout compatibility and electrical characteristics such as propagation delay and supply current before implementation.