LT1712IGN#TRPBF

Overview

The LT1712IGN#TRPBF is a dual UltraFast comparator featuring rail-to-rail inputs and complementary outputs. It operates on single supplies from 2.4V to 12V or dual supplies of ±2.4V to ±6V. The device includes an output latch for data retention and handles input voltages exceeding supply rails without phase reversal. Propagation delay is 4.5ns at 20mV overdrive. It is housed in a 16-lead narrow SSOP package.

Feature Summary

• Rail-to-rail inputs extend beyond supply rails with phase reversal protection
• Complementary outputs interface directly with TTL or CMOS logic
• Internal latch retains output data when the latch pin is held high

Applications

• High speed automatic test equipment
• Current sense for switching regulators
• Crystal oscillator circuits
• High speed sampling circuits
• Window comparators

Procurement Notes

Verify the specific suffix IGN#TRPBF against official Analog Devices documentation to confirm industrial temperature range and tape-and-reel packaging configuration. Ensure compatibility with 16-lead narrow SSOP footprints during procurement validation.

Selection Notes

Select this component for applications requiring ultrafast response times and rail-to-rail signal handling. The dual-channel architecture supports independent comparator operations within a single package, suitable for systems needing multiple fast comparison functions.

Part Context

This part belongs to the LT1711/LT1712 family of UltraFast comparers. While the LT1711 offers a single channel in an 8-lead MSOP, the LT1712 provides two channels in a 16-lead narrow SSOP package, maintaining identical electrical performance characteristics.

Replacement Considerations

LT1711CMS8

FAQ

How does the LT1712 handle input signals exceeding the supply voltage?

The rail-to-rail inputs can exceed the supply rails by up to 100mV without phase reversal. Inputs taken to opposite rails do not cause significant increases in input current.

What is the function of the LATCH ENABLE pin?

Holding the LATCH ENABLE pin high causes the internal latch to retain the current output state, effectively freezing the output regardless of subsequent input changes.