LTC6994CDCB-1#TRMPBF

Overview

The LTC6994CDCB-1#TRMPBF is a programmable delay block from the TimerBlox family, housed in a 6-lead DFN package with an operating temperature range of 0°C to 70°C. It provides a delay range from 1µs to 33.6 seconds, configured via a single RSET resistor and an internal divider (NDIV) selectable from 1 to 2^21. The device operates on a single supply voltage between 2.25V and 5.5V, drawing 70µA at a 10µs delay. It features a CMOS output driver capable of sourcing or sinking 20mA, with a typical start-up time of 500µs.

Feature Summary

• Configurable edge-delay functionality for rising or falling transitions
• Dynamic delay adjustment capability via control voltage
• Noise discrimination and pulse qualification logic

Applications

• Noise discriminators and pulse qualifiers
• Switch debouncing circuits
• Delay matching applications

Procurement Notes

Verify the specific suffix #TRMPBF indicates tape and reel mini packaging when ordering. Confirm the 'C' grade designation aligns with the required 0°C to 70°C commercial temperature range for your application environment. Cross-reference the datasheet revision to ensure compatibility with current design specifications.

Selection Notes

Select the LTC6994-1 variant specifically if only one transition edge requires delaying. Ensure the external RSET resistor tolerance meets accuracy requirements, as delay precision depends heavily on this component. Verify that the DIV pin voltage divider network maintains stability within the specified impedance limits to prevent code wandering.

Part Context

This component belongs to the Analog Devices TimerBlox series, designed for versatile silicon timing tasks. It complements other devices like the LTC6990 oscillator and LTC6993 monostable multivibrator by offering precise, programmable signal delay capabilities in a compact footprint suitable for space-constrained designs.

Replacement Considerations

LTC6994IDCB-1#TRMPBF offers the same functionality with an extended industrial temperature range (-40°C to 85°C). LTC6994HDCB-1#TRMPBF provides high-temperature operation up to 125°C. Both are direct pin-compatible replacements if thermal conditions exceed the commercial grade limits.