LTC6752ISC6-1

Overview

The LTC6752ISC6-1#PBF is a single-channel, high-speed analog comparator from Analog Devices. It features rail-to-rail inputs and CMOS outputs, supporting toggle rates up to 280MHz with a typical propagation delay of 2.9ns. The device operates on a total supply voltage range of 2.45V to 3.5V. Key electrical characteristics include an input offset voltage of ±1.2mV, output current capability of ±22mA, and low quiescent current of 4.5mA. It includes latching and adjustable hysteresis functions via the LE/HYST pin and is housed in a 6-lead SC-70 package.

Feature Summary

• Rail-to-rail input stage allows signal common mode voltages to extend beyond both supply rails.
• Integrated latching function captures and holds the output state upon assertion of the LE/HYST pin.
• Adjustable hysteresis provides noise immunity through the LE/HYST control pin.
• CMOS output stage supports direct interfacing with digital logic families.

Applications

• Clock and data recovery circuits
• High-speed line receivers
• Time of flight measurements
• Window comparators

Procurement Notes

Verify the specific suffix ISC6-1 corresponds to the 6-lead SC-70 package with latching/hysteresis functionality. Confirm the temperature grade 'I' indicates operation from -40°C to 85°C. Ensure the ordering code includes the #PBF designation for lead-free finish compliance. Cross-reference the manufacturer's latest datasheet for any potential pinout or electrical specification updates prior to final design integration.

Selection Notes

Select this component when a single-channel comparator with latching capability is required. The SC-70 package suits space-constrained designs. Verify that the 2.45V to 3.5V supply range aligns with system power rails. Consider the 2.9ns propagation delay for timing-critical paths. Evaluate the need for separate input/output supplies; if not required, this single-supply option simplifies board layout compared to variants like the LTC6752-2.

Part Context

This part belongs to the LTC6752 family of ultra-high-speed comparators designed for critical timing applications. The family offers various configurations including shutdown pins, complementary outputs, and different package options. The ISC6-1 variant specifically integrates latching and adjustable hysteresis in a compact surface-mount footprint, distinguishing it from basic models lacking these control features.

Replacement Considerations

The datasheet identifies the ADCMP60X family as a direct replacement option. Verify pin compatibility and electrical specifications against the specific ADCMP60X model selected. Ensure the substitute supports the required toggle rate and propagation delay metrics for the application.