LTC6994-2 Datasheet | Analog Devices

Features n Delay Range: 1µs to 33.6 Seconds n Configured with 1 to 3 Resistors n Delay Max Error: - <2.3% for Delay > 512µs - <3.4% for Delay of 8µs to 512µs - <5.1% for Delay of 1µs to 8µs n Delay One or Both Rising/Falling Edges n 2.25V to 5.5V Single Supply Operation n 70µA Supply Current at 10µs Delay n 500µs Start-Up Time n CMOS Output Driver Sources/Sinks 20m A n - 55°C to 125°C Operating Temperature Range n Available in Low Profile (1mm) SOT-23 (Thin SOT™) and 2mm × 3mm DFN n AEC-Q100 Qualified for Automotive Applications APPLICATIONS n Noise Discriminators/Pulse Qualifiers n Delay Matching n Switch Debouncing n High Vibration, High Acceleration Environments n Portable and Battery-Powered Equipment All registered trademarks and trademarks are the property of their respective owners. LTC6994-1/LTC6994-2 Timer Blox: Delay Block/ Debouncer DESCRIPTION The LTC®6994 is a programmable delay block with a range of 1µs to 33.6 seconds. The LTC6994 is part of the Timer Blox® 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 oscil- lator and an internal clock divider, NDIV , programmable to eight settings from 1 to 221: t DELAY = NDIV - RSET 50kΩ - 1µs, NDIV = 1, 8, 64,...,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. DEVICE DELAY FUNCTION LTC6994-1 or LTC6994-2 or The LTC6994 also offers the ability to dynamically adjust the delay time via a separate control voltage. For easy configuration of the LTC6994, use the Timer Blox LTC6994: Delay Web-Based Design Tool. TYPICAL APPLICATION Noise Discriminator NOISY INPUT V+ QUALIFIED OUTPUT...