LT1116CN8#PBF

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 accurately. It includes complementary outputs for direct TTL logic interfacing 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 inputs capable of withstanding voltages up to 15V without damage.

Feature Summary

• Ultra-fast response time designed for high-speed applications
• Ground-sensing capability with input common mode extending to the negative supply rail
• Internal TTL-compatible latch for retaining output data states
• Complementary outputs enabling direct interface with standard logic families

Applications

• High speed A/D 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 if environmental regulations apply to the manufacturing process. Ensure the operating temperature range aligns with the system's thermal requirements, as this variant is specified for commercial temperatures. Cross-reference pinout diagrams during integration to ensure correct power and signal connections.

Selection Notes

Select this component when ground-referenced signal detection is critical within a fast timing environment. The device is suitable for designs requiring minimal input slew rate constraints while maintaining stability. Consider the internal latch feature if holding comparison results is necessary before subsequent processing stages. Evaluate power supply flexibility, as the comparator supports both single and dual supply architectures effectively.

Part Context

This comparator belongs to the LT1116 family, which is pin-compatible with the LT1016 precision comparator. It shares similar functional characteristics but offers improved speed and stability for a wider range of operating conditions. The device is manufactured by Analog Devices Inc., continuing the legacy of Linear Technology high-performance analog components.

Replacement Considerations

LT1016CN8#PBF: Pin-compatible alternative with slightly slower speed but comparable precision characteristics.