DESCRIPTION

· The ALD7555/ALD7556 are high-performance single/dual CMOS analog RC timers.

· They offer enhanced performance in speed, leakage currents, supply current, stability, and discharge output drive compared to SE555/NE555, ICL7555, TLC555, and ICM7555.

· These timers feature high input impedance, enabling smaller timing capacitors and longer timing cycles.

· They are suitable for battery-operated environments due to low power dissipation and reduced supply current spikes.

· Capable of accurate time delays and oscillations in monostable and astable modes.

FEATURES

· Improved accuracy and temperature stability.

· High-speed operation with 2.5MHz typical oscillation at 5V.

· High discharge sinking current of 80mA at 5V.

· Guaranteed low operating supply voltage from 2V to 10V.

· Functional equivalent to NE555/NE556, SE555, TLC555, ICM7555/ICM7556 with the same pin-out.

· Expanded high and low frequency ranges.

· Low supply current: 50 µA for ALD7555, 100 µA for ALD7556.

· Extremely low trigger, threshold, and reset currents (10pA typical).

· CMOS, NMOS, and TTL compatible input/output.

· Rail-to-rail output.

APPLICATIONS

· Precision sequential timing.

· Long delay timer.

· Pulse width and pulse position modulation.

· Missing pulse detector.

· Frequency divider.

· Synchronized timer.