Overview
Features and Benefits
- Pulse Width Range: 1µs to 33.6 Seconds
- Configured with 1 to 3 Resistors
- Pulse Width Max Error:
- <2.3% for Pulse Width > 512µs
- <3.4% for Pulse Width of 8µs to 512µs
- <4.9% for Pulse Width of 1µs to 8µs
- Four LTC6993 Options Available:
- Rising-Edge or Falling-Edge Trigger
- Retriggerable or Non-Retriggerable
- Configurable for Positive or Negative Output Pulse
- Fast Recovery Time
- 2.25V to 5.5V Single Supply Operation
- 70µA Supply Current at 10µs Pulse Width
- 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 LTC6993 is a monostable multivibrator (also known as a “one-shot” pulse generator) with a programmable pulse width of 1µs to 33.6 seconds. The LTC6993 is part of the TimerBlox® family of versatile silicon timing devices.
A single resistor, RSET, programs an internal master oscillator frequency, setting the LTC6993’s time base. The output pulse width is determined by this master oscillator and an internal clock divider, NDIV, programmable to eight settings from 1 to 221.
The output pulse is initiated by a transition on the trigger input (TRIG). Each part can be configured to generate positive or negative output pulses. The LTC6993 is available in four versions to provide different trigger signal polarity and retrigger capability.
The LTC6993 also offers the ability to dynamically adjust the width of the output pulse via a separate control voltage.
| Device | Input Polarity | Retrigger |
| LTC6993-1 | Rising-Edge | No |
| LTC6993-2 | Rising-Edge | Yes |
| LTC6993-3 | Falling-Edge | No |
| LTC6993-4 | Falling-Edge | Yes |
Applications
- Watchdog Timer
- Frequency Discriminators
- Missing Pulse Detection
- Envelope Detection
- High Vibration, High Acceleration Environments
- Portable and Battery-Powered Equipment
Product Categories
Product Lifecycle
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 (4)
Documentation & Resources
-
R494 Reliability Data3/22/2018
-
DC1562B - Demo Manual8/22/2013
-
Silicon Oscillators11/17/2015
-
TimerBlox6/27/2011
-
The Right Timing5/1/2019
-
TimerBlox: Function-Specific ICs Quickly and Reliably Solve Timing Problems1/1/2011 LT Journal
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.
Models for the following parts are available in LTspice:
LTC6993-1
LTC6993-2
LTC6993-3
LTC6993-4
Design Tools
Product Recommendations
LTC6993-1 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.
PCN-PDN Information
Select a model from the dropdown below to subscribe to PCN/PDN notifications and view past notifications as well.
Support & Discussions
ltc6993-1 Discussions
Sample & Buy
Ordering FAQs
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Buy Now Pricing
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List Pricing
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Lead Times
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Sampling
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
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.