LT1116CN8

Overview

The LT1116CN8#PBF is a single ultra-fast ground-sensing comparator in an 8-lead PDIP package. It features a typical propagation delay of 12ns and operates from a single 5V supply or dual ±5V supplies. The input common mode range extends to the negative supply rail, allowing signals near ground to be sensed directly. It includes complementary TTL-compatible outputs and an internal latch for data retention. Key electrical specifications include a maximum input offset voltage of 3.5mV, a small signal voltage gain of up to 3000 V/V, and positive supply current ranging from 27mA to 38mA.

Feature Summary

• Ultra-fast response time with minimal cross-conduction current
• Ground-sensing capability with input common mode extending to the negative supply rail
• Internal TTL-compatible latch for output data retention
• Complementary outputs designed for direct interface with TTL logic

Applications

• High-speed analog-to-digital converters
• Zero crossing detectors
• Current sense circuits for switching regulators
• Fast pulse height and width discriminators
• High-speed sampling circuits

Procurement Notes

Verify that the specific part number suffix matches the required package type, as the CN8 designation indicates an 8-lead PDIP configuration. Confirm RoHS compliance status by checking the PBF suffix on official documentation. Ensure the operating temperature range aligns with the 0°C to 70°C specification defined for this commercial grade device before finalizing procurement orders.

Selection Notes

Select this component when ground-referenced signal sensing is required without level shifting. It is suitable for applications needing fast response times with low overdrive voltages. Consider the complementary output structure if both true and inverted signals are needed for downstream logic. Verify that the power supply constraints fit within the specified single or dual supply ranges for optimal performance.

Part Context

This device belongs to the LT1116 family of high-speed comparators manufactured by Analog Devices Inc. It serves as a pin-compatible replacement for the LT1016 while offering improved speed characteristics. The product line focuses on precision analog signal processing components designed for demanding industrial and communication applications requiring rapid decision-making capabilities.

Replacement Considerations

The LT1016 is a pin-compatible alternative within the same manufacturer's portfolio. Designers should verify that the slower propagation delay of the LT1016 meets the system timing requirements before substituting.