Linear Technology LTC6993 ‘one-shot’ pulse generator

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Linear Technology has announced the LTC6993 ‘one-shot’ pulse generator, the latest member of the TimerBlox family of timing devices. The one-shot function, also known as a monostable multivibrator, is useful for accurate event timing, edge detection and frequency discrimination.

The device makes implementation simple, since it is programmed using only a few resistors. The programmability range allows it to operate from 1 µs to 33.6 s, spanning 25 octaves.

Four versions of the device are available, providing a choice of rising and falling-edge trigger polarities, as well as retrigger capability. With retriggering, an output pulse is extended by multiple input triggers.

Without retriggering, the output pulse ignores multiple input triggers and can only be initiated when the output is not active. Each generator can be configured to generate logic high or low output pulses.

The family covers a total of eight logic functions to ensure flexibility and ease of use. In addition, the output pulse-width can be dynamically adjusted via a separate control voltage.

The device is part of the TimerBlox family in which an accurate programmable oscillator is combined with precision circuitry and logic. No capacitors, no crystals, no microcontrollers and no programming are required.

TimerBlox devices are solid state and can be operated under high acceleration, vibration and temperature extremes. They offer higher accuracy, stability and lower power consumption than typical resistor/capacitor-based oscillators. The 20 mA source and sink capability allows for directly driving opto-isolators and transformers.