Advanced Linear Devices ALD7555 / ALD7556 CMOS Analog RC Timers offer improved performance in speed, leakage currents, supply current, stability, temperature voltage stability, and discharge output drive compared to NE555 / NE556, SE555, TLC555, and ICM7555 / ICM7556 timers. The ALD7555 and ALD7556 feature high input impedance, which allows smaller timing capacitors and a longer timing cycle, high speed, and low power dissipation for battery-operated environments. This feature also offers reduced supply current spikes, allowing smaller and lower cost decoupling capacitors. These single/dual monolithic analog RC timing circuits offer a guaranteed low operating supply voltage of 2V to 10V, and a high discharge sinking current of 80mA at 5V.
Advanced Linear Devices ALD7555 / ALD7556 CMOS Analog RC Timers are ideal for use in a variety of applications, including battery technology, power supplies, gaming devices, and handheld wireless devices.
Improved accuracy and temperature stability
High-speed operation: 2.5MHz typical oscillation at 5V
High discharge sinking current of 80mA at 5V
Guaranteed 2V to 10V operating supply voltage
Functional equivalent to and same pin-out as NE555 / NE556, SE555, TLC555, and ICM7555 / ICM7556
Greatly expanded high and low-frequency ranges
High speed, low power, monolithic CMOS technology
Low supply current spikes
Low supply current
50µA typical for ALD7555
100µA typical for ALD7556
Extremely low trigger, threshold, and reset currents (10pA typical)