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  2. Clock and Timing
  3. Counters, Timers and Delay Linear
  4. TimerBlox
  5. LTC6994-1


Overview

Features and Benefits

  • Delay Range: 1µs to 33.6 Seconds
  • Configured with 1 to 3 Resistors
  • Delay Max Error:
    • <2.3% for Delay > 512µs
    • <3.4% for Delay of 8µs to 512µs
    • <5.1% for Delay of 1µs to 8µs
  • Delay One or Both Rising/Falling Edges
  • 2.25V to 5.5V Single Supply Operation
  • 70µA Supply Current at 10µs Delay
  • 500µs Start-Up Time
  • CMOS Output Driver Sources/Sinks 20mA
  • –55°C to 125°C Operating Temperature Range
  • Available in Low Profile (1mm) SOT-23 (ThinSOT) and 2mm × 3mm DFN
  • AEC-Q100 Qualified for Automotive Applications

Product Details

The LTC6994 is a programmable delay block with a range of 1µs to 33.6 seconds. The LTC6994 is part of the TimerBlox® family of versatile silicon timing devices.

A single resistor, RSET, programs an internal master oscillator frequency, setting the LTC6994’s time base. The input-to-output delay is determined by this master oscillator and an internal clock divider, NDIV, programmable to eight settings from 1 to 221.

The output (OUT) follows the input (IN) after delaying the rising and/or falling transitions. The LTC6994-1 will delay the rising or falling edge. The LTC6994-2 will delay both transitions, and adds the option to invert the output.

The LTC6994 also offers the ability to dynamically adjust the delay time via a separate control voltage.

Applications

  • Noise Discriminators/Pulse Qualifiers
  • Delay Matching
  • Switch Debouncing
  • High Vibration, High Acceleration Environments
  • Portable and Battery-Powered Equipment

Product Categories

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (2)

Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

To launch ready-to-run LTspice demonstration circuits for this part:

Step 1: Download and install LTspice on your computer.

Step 2: Click on the link in the section below to download a demonstration circuit.

Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.

LTspice

Models for the following parts are available in LTspice:

LTC6994-1
LTC6994-2

Design Tools

Reference Designs (1)

Product Recommendations

LTC6994-1 Companion Parts

Recommended Related Parts

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.View our quality and reliability program and certifications for more information.

Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
LTC6994CDCB-1#PBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994CDCB-1#TRMPBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994CDCB-1#TRPBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994CDCB-2#PBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994CDCB-2#TRMPBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994CDCB-2#TRPBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994CS6-1#PBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994CS6-1#TRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994CS6-1#TRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994CS6-2#PBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994CS6-2#TRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994CS6-2#TRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994HDCB-1#PBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994HDCB-1#TRMPBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994HDCB-1#TRPBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994HDCB-2#PBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994HDCB-2#TRMPBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994HDCB-2#TRPBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994HS6-1#PBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994HS6-1#TRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994HS6-1#TRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994HS6-1#WTRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994HS6-1#WTRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994HS6-2#TRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994HS6-2#TRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994HS6-2#WTRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994HS6-2#WTRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994IDCB-1#TRMPBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994IDCB-1#TRPBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994IDCB-2#TRMPBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994IDCB-2#TRPBF Material Declaration Reliability Data 6-Lead DFN (2mm x 3mm w/ EP)
LTC6994IS6-1#TRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994IS6-1#TRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994IS6-1#WTRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994IS6-1#WTRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994IS6-2#TRM Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994IS6-2#TRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994IS6-2#TRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994IS6-2#WTRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994IS6-2#WTRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994MPS6-1#TRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994MPS6-1#TRPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994MPS6-2#TRMPBF Material Declaration Reliability Data 6-Lead TSOT-23
LTC6994MPS6-2#TRPBF Material Declaration Reliability Data 6-Lead TSOT-23
Wafer Fabrication Data R494 Reliability Data

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Evaluation Boards

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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.