LTC6702CDC#TRMPBF

Overview

The LTC6702CDC#TRMPBF is a dual comparator from Analog Devices Inc. designed for low voltage and micropower applications. It operates on supply voltages between 1.7V and 5.5V, drawing a maximum quiescent current of 30μA per comparator at 3V. The device features a maximum propagation delay of 500ns and an internal hysteresis of approximately 4mV. It supports a maximum toggle frequency of 3.2MHz and includes rail-to-rail push-pull outputs compatible with TTL and CMOS logic levels. The component is housed in an 8-lead (2mm × 2mm) Plastic DFN package and is specified for operation within a temperature range of 0°C to 70°C.

Feature Summary

• Micropower operation with low supply current consumption suitable for battery-powered systems
• Internal hysteresis desensitizes the device to input noise and simplifies circuit design
• Rail-to-rail push-pull output stage provides direct compatibility with standard logic families
• Compact 2mm x 2mm DFN package optimizes board space utilization

Applications

• Battery powered systems
• Window comparators
• Threshold detectors and discriminators
• Clock regeneration circuits
• Automotive sensing and controls

Procurement Notes

Verify that the specific part number corresponds to the 'C' grade temperature range of 0°C to 70°C, as other grades like 'I' or 'H' cover wider ranges. Confirm the package type matches the required footprint, specifically the 8-lead 2mm x 2mm DFN with exposed pad. Ensure the ordering suffix indicates tape and reel packaging if automated assembly is planned. Cross-reference the manufacturer's latest documentation for any updates to pin configurations or absolute maximum ratings before finalizing procurement.

Selection Notes

Select this component when board space is limited and low power consumption is critical. It is suitable for applications requiring fast response times under 500ns without high current draw. Consider the internal hysteresis for noisy environments to prevent false triggering. Verify that the single-supply voltage range of 1.7V to 5.5V aligns with the system power rails. Ensure the operating temperature requirements fall within the 0°C to 70°C specification for the CDC variant.

Part Context

The LTC6702 belongs to a family of tiny micropower dual comparators offered by Analog Devices. It shares functional similarities with parts like the LTC6702IDC and LTC6702HDC but differs in guaranteed performance specifications and temperature ranges. The series is designed to maximize battery life while maintaining speed, making it distinct from higher-power general-purpose comparators. It complements other Linear Technology components such as precision references and oscillators in compact power management designs.

Replacement Considerations

Direct substitutes include the LTC6702IDC#TRMPBF for a wider –40°C to 85°C temperature range and the LTC6702HDC#TRMPBF for –40°C to 125°C operation. Both share the same 8-lead DFN package and electrical characteristics. Ensure the replacement meets the specific thermal requirements of the application, as the CDC grade is limited to 0°C to 70°C.