DESCRIPTION

· The LTC6994 is a programmable delay block from the TimerBlox family, offering a delay range of 1µs to 33.6 seconds.
· It uses a single resistor (R_SET) to program the internal master oscillator frequency, which sets the time base.
· The delay is determined by the master oscillator and an internal clock divider (N_DIV), programmable to eight settings from 1 to 221.
· The LTC6994-1 delays either the rising or falling edge, while the LTC6994-2 delays both transitions and offers output inversion.
· Delay time can be dynamically adjusted via a control voltage.

FEATURES

· Delay range: 1µs to 33.6 seconds.
· Configured with 1 to 3 resistors.
· Delay max error: <2.3% for delays >512µs, <3.4% for 8µs to 512µs, <5.1% for 1µs to 8µs.
· Operates on a single supply of 2.25V to 5.5V.
· 70µA supply current at 10µs delay.
· 500µs start-up time.
· CMOS output driver sources/sinks 20mA.
· Operating temperature range: -55°C to 125°C.
· Available in low profile SOT-23 and 2mm × 3mm DFN packages.
· AEC-Q100 qualified for automotive applications.

APPLICATIONS

· Noise discriminators/pulse qualifiers.
· Delay matching.
· Switch debouncing.
· High vibration, high acceleration environments.
· Portable and battery-powered equipment.