LTC6994HS6-1-TRPBF Ver la hoja de datos (PDF) - Analog Devices
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LTC6994HS6-1-TRPBF Datasheet PDF : 28 Pages
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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 20mA
n –55°C to 125°C Operating Temperature Range
n Available in Low Profile (1mm) SOT-23 (ThinSOT™)
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
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LTC6994-1/LTC6994-2
TimerBlox: 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 TimerBlox® family of versatile silicon timing devices.
A single resistor, RSET , programs an internal master os-
cillator 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:
tDELAY
=
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 TimerBlox
LTC6994: Delay Web-Based Design Tool.
TYPICAL APPLICATION
Noise Discriminator
NOISY
INPUT
IN
OUT
LTC6994-2
GND
V+
QUALIFIED
OUTPUT
3.3V
0.1µF
SET
RSET
75k
DIV
699412 TA01a
IN
2V/DIV
OUT
2V/DIV
1.5µs
1.5µs
20µs/DIV
699412 TA01b
Rev. C
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